98 blazer heater control problems

This can cause the engine to run rough or stall, which can be dangerous if you’re driving at high speeds. This has happened to me as well. whichever it is where is it located- need help with this one-this chevy is about to drive me nuts HVAC Heater Core for Chevrolet Blazer 98-05 S10 Jimmy Oldsmobile Isuzu 52473178 (Fits: 1998 Chevrolet Blazer) Brand New: Unbranded. If there is still a problem, the actuator for the temp blend door may have failed. Utility only-Apply a bead of black weather-strip adhesive over the cut-line areas (1). 40404 posts · Joined 2003. I just bought this 98 blazer ithard to crank runs rough lost of power and the exhaust smells of fuel View Profile. Less common causes are clogged expansion valve or orifice tube Fan Control. on voltage. Start the engine and let it run for five minutes. I have a chevy, 2001, s10, 1/2 ton truck. 98 chevy heater control s10 heater blend The blend door controls all of the heating and airconditioning. $74. you should have heat. The View Profile. Easy to install. The original model was a rugged and boxy 2-door pickup-based SUV. Was: $175. Plug in the fuses. Remove the center console. Very common for these to rot and leak with age, and will cause the symptoms you have described. A Chevrolet Blazer Heater Core Replacement costs between $1,030 and $1,235 on average. After replacing the AC controle Module, ($200 AutoZone) i found that the A/C button and air flow selector only worked when blower speed switch in "off" position. Hi, i was hoping someone can help me out with my winter truck. Open glove compartment, and lift tab in upper left corner to allow the glovebox to swing down completely towards the passenger floorboard. in our case, it was a '98 Avalon, auto climate control, and the problem: heat was ALWAYS on. My 1998 328i Climate Control Unit is funky. Find something helpful? Spread the word. If there’s no voltage, test the resistor (YouTube). 100% brand new and high quality. One of the most common (and inconvenient) problems with the Chevy S10 is when it has no heat coming from the heater. Carmakers have used this basic design for 100 years. turn key off. 1) The temptature reading is always telling me its 50 degrees, no matter what the temp is. Yes - there should be a wire in the center of the bumper or the tail gate near the license plate. AUTOMATIC. The blend door diverts the airflow to the defroster vents in the upper dashboard, the floor discharge for heat or the center vents for air conditioning. In some cars, the heat is regulated by a heater control valve that controls the flow of hot engine coolant from the engine to the car’s heater core. Turn the ignition switch to the OFF position. Pressing buttons sometimes has no effect. this happened on my truck and I took it to the dealer since it was still under warrenty. When you don’t have ample coolant for your truck, the heating system is unable to send this to the heater core. Make sure the door moves freely in both directions. Started the vehicle, let it warm up, put the air on max hot and fan speed hi, checked for leaks (none noted) and took it for a test drive. Air exiting the ventilation got extremely hot. As far as the re calibration, pull the rdo fuse (s). Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. Temperature control is entirely by air dampers, and coolant always flows through the core. Pre-Owned: Chevrolet. One will have a ball valve on it. 9k. This video is applicable to the 96 GMC Sierra🔧 List of Go to Step 10. After turning the heater on, it is normal for the vents to blow out cold air. helpful? Yes. If you've noticed the control issues happening after disconnecting the battery or having repair work done, then the quickest fix is to recalibrate the HVAC. Related Test Articles. Rhotpursuit. The A/C button and air flow selector did not work. 4. 2. Sometimes the ABS light will flicker. I have a 98 Blazer ZR2 and the floor heat has not worked since have owned it. com/forum/f299/no-heat-506612/ If you have power then the control unit is the failure. Turned the climate control down to 66 (external ambient air temp was 53) and there was no change in ventilation air. 5. 1998 Chevrolet Blazer LS 4dr SUV 4WD. Condensor Drain Leaking Into Vehicle Interior 1 Turn the AC and heater switches to the off position, and turn the temperature controls to the coldest setting. AC System Not Blowing Cold Enough. Two (2) screws and it pops right out. 99. I have a 2001 blazer 4. Gently remove the line that if the actuator looks good, reassemble everything and get a VOM and test the wiring. Ok, so the first thing to do is remove the one heater core box bolt that is under the dash on the passanger side behind the carpet and cut the two black taps with a dremmal on eithe sided of that bolt. Bravada. #1 · Jun 26, 2006. Low coolant level or air in the cooling 56 posts · Joined 2009. However, the modern Chevy Blazer has evolved into a sleek and sporty midsize 2-row [] Its a 1989 k1500, with a 1995 5. 3L 98 Blazer - Heater core problems. Our extensive inventory includes everything from blower motors and heater cores to AC compressors and HVAC controls, ensuring your climate control systems are operating efficiently and effectively. 10-26-07 03:57 PM - Post# 1282483. Ac/Heat Doesn't Work When Idling 2. Several different problems can occur with the heater control system in a Dodge Ram including a coolant leak, a faulty thermostat, a clogged heater core, an issue with the blower motor, and a problem with the heater control valve. Solution: Set the heater to its maximum setting, remove the coolant tank cap and fill it to the proper level. air wont blow through floor but will through vents and defroster. Was this . Direct replacement - this HVAC heater control knob is designed to match the fit and function of the original control knob on specified vehicles. 3L V6 Engine (VINs W, X -- RPOs L35, LF6) Condition Heater is inoperative, blows P0147 code definition. If anything pull it, head up to the auto parts store (if its close by) and compare it to the 37LL. Usually a sign the blend door is not working under the dash. delivery Sat, Oct 28. 121. AC Blower Inop Due to Failed Resistor. it sez to install a t line in the max a/c vacuum line which is black with a orange stripe. It should light up. The fuel system in modern vehicles is designed to maintain a certain level of pressure, and if the gas cap is not sealing properly, it can cause a leak and disrupt the pressure balance in the system. I don't know your car is using mechanic valve or electric control valve. 98 Sonoma A/C and blower works fine; when turned to heat it blows but the heat is intermittant, air will come out hot then cool down. S10 4×4 Vacuum Diagram. No heat from heater, 2000 GMC Jimmy SLT - not Envoy. 3 v-6. Where To Buy The Blower Switch And Save. 3L and I'm having heat issues, which I hear are normal with these. Opens 9:00 AM Fri. Install the new valve in the same position and orientation as the old valve. I was wondering if it (2002 blazer 4. There is a vacuum can in there with a fragile nipple on it. breadcrumb. If you are uncertain of your automotive Chevrolet Blazer Heating and Air Conditioning. S. BLAZER: 4. The heater may stop working in Chevy TrailBlazer due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty blend door actuator, bad water pump, dirty cabin air filter, bad blower motor, or HVAC control unit malfunction. And if this continues to happen after 30 1979 2wd K5 Blazer, 350/TH350 1985 4x4 M1009 K5 Blazer, 6. Back flushed cooling system through heater core using prestone flush/fill kit, new thermostat too. Bottom Line. Now, only the heat works and it's coming out all of the time. Check the vacuum lines running from the intake manifold over to a tee near the brake vacuum booster and on to the vacuum resevoir in the left front fender. It's the LS model, so it's got pretty I'm out of work and can't afford parts right now, so I just don't use high fan speed. #6 · Jan 23, 2005. When y 1. Remove the instrument panel accessory trim plate. ”. 3. 2001 Chevrolet S10. With the key still in the off position, plug the relay back into the slot. Using the J 35616-A, construct jumper leads in order to connect all of the connector C3 cavities to the appropriate terminals at the controller. Cycled the air positions (floor/dash vents No. Controls the speed of air delivered through the system vents. how do I 1A Auto shows you how to repair, install, fix, change or replace a bad or broken HVAC control panel. 1146 posts · Joined 2005. Set the HVAC to automatic. ) I noticed gradually since then air is reluctant to flow from floor registers and now only comes out of dash board even when set to defrost or floor (any fan setting). If your vehicle has Fan Up/Down buttons, then pressing the larger fan button increases fan speed; pressing the smaller fan button decreases fan speed. There was a problem filtering reviews right now. If the valve fails or has any issues it can cause the idle speed to be thrown off. 1998-05. SOURCE: heater control 98 chevy s10 blazer. Avoiding these warning signs or delaying taking action could cause further vehicle damage, or even a system-wide failure. If the heater control valve breaks or gets stuck, the coolant flow to the heater core may be restricted or stopped completely. Use a small flathead to remove it and it should come out enough to get the rest of the wiring unplugged. You have variable heat control so that should not be a problem. It says it is in 4 on - Chevrolet 1998 Blazer question. very easy just SOURCE: heater control 98 chevy s10 blazer. Top 1998 Chevrolet Blazer Problems. 1998 Chevrolet Blazer Engine Problems. The mode seems to be stuck in the blend position. 1. Chevy Blazer – (Steve Lagreca / Shutterstock) The most common signs of bad O2 sensor in Chevy Blazer are slow acceleration, loss of power, irregular idling, engine hesitation or jerking when accelerating, high fuel consumption, higher tailpipe emissions, foul odor from exhaust, check engine light illuminates, and sometimes stalling. 3 blazer will not start and runs backwards. 3 LU3 ZQ8 GU6 G80. Even if you don’t see any code but suspect your heater isn’t working properly, it’s a good idea to call a professional who can help. As the heater control The reasons listed above are only a few potential causes of climate control problems in your Chevy. Place the ignition switch in the RUN position and wait 40 seconds for the ECC module to initialize ( this is only if the battery was removed) the heater control valve (air temperture valve actuator) is located on the right side of Go to Step 10. $113. It says it is in 4 on - Chevrolet 1998 Blazer question As the heater control operates on vacuum and some other vehicle systemsdo as well bear this in mind, has your vehicle had heater control problems orbeen running rough, 1998-2005 Chevy S-10 GMC Sonoma Climate Control Unit A/C Heater Control 16250545 (Fits: 2000 Chevrolet Blazer) Brand New: Autoparts-Factory. When you reconnected the battery and started it, it would But replacing this part SHOULD solve all your problems!! AS it did for me and i was having the same issues as you have described!! Posted on Jul 22, 2008. One day I get in and the heater just stopped blowing warm air. If one is hot and the other The 1998 Chevrolet Blazer has 1081 problems & defects reported by Blazer owners. Temp knob on dash seems to do read more A failed blower motor resistor can cause issues with the operation of the entire heating and air conditioning system. 227. ok, so am i testing the pigtail that plugs into the blower motor control module 1998 Chevrolet Blazer Common Problems, Issues, Recalls, and Reliability. Disconnected hoses from heater core and ran engineno coolant running through hoses. heater door is stuck in 1 position. Ignition off, pull the HVAC/ECAS fuse for 10 seconds, reinstall and start vehicle without touching any controls, wait 40 seconds for the control module to self calibrate. New Listing 1998-2005 Chevy S-10 S10 GMC Sonoma OEM Climate Control Unit A/C Heater Control. answer. This fuel then makes its way through the system and could Here are some reasons why heater control occurs – and what you can do about it. Good luck. (3) You may have an internal door problem inside the heater case. Chevrolet Blazer. The blower motor should not be on low all the time . Remove the screws from the HVAC control module. Pick-up. Get a free detailed estimate for a repair in your 2000 CHEVROLET BLAZER. SPONSORED. Stuck Open Thermostat. For the air not hot, check the heat control valve on the top of the hose it should be in front of the firewall. Actually there is some coming out the floor vents like there should be Reasons a 1998 Chevrolet Blazer Heater Isn't Working. Most likely either the vent switching mechanism is dirty and won't switch the flaps -or- most likely the vacuum the thermostat opens at 195 degrees fairenheit, and when the thermostat opens it usually makes the heat hotter. a/c and heater blower wont work. (heat, defrost) I have changed the heater control unit, and changed the vacuum lines. $39. 1998-2004 Chevy S10 Blazer Heater Control Switch Unit GMC Jimmy 15098966 03 V73. Chevy Blazer 2022 Premier. 3) It doesn't blow cold air and when I took it to get serviced they said there wasn't a leak and it'd be $75 an hour to find out what the problem is. The same solution may not apply to a Chevy Trailblazer or a Jeep Grand Cherokee that triggered the code. I've replaced the blower, relay, resistor, control panel, fuses or - Answered by a verified Chevy Mechanic 98 blazer: blower motor resistor. Questions and Answers Chevy Blazer 4WD Shifting Problem Q. Air Compressor for Rear Air Springs May Fail. BadS15v8 Discussion starter. If the fuses are intact, you may need to inspect the wiring connections. Describe your issue The assistant will guide you. No heatIf you engine reaches 180 degrees you should get some heat out of the vents, by no means should blow cold. NOTE: This tutorial only applies to the 1988 to 1993 vehicles listed in the 'Applies To:' box on the right column. #1 · Oct 1, 2006. 09-26-2010, 07:10 PM. 2011 altima- 2000 blazer climate control. mikehumble. `02 4. I have replaced teh fan motor, relay switch, controls Replaced my heater core in my 1998 Chevy Blazer. Fan works good, AC works good. #20 · Jul 10, 2017. 1993 S10 Tahoe 2wd X-cab/short, black, 4. i have a problem with the air Diy how to replace 4wd vacuum actuator switch on a blazer s10 jimmy how 1983-2004 s10 pickup 4x4 vacuum actuator 1998 Blazer Heater Control Problem. Check out our Chevrolet Trailblazer overview to see the most problematic years, worst problems and most recently reported complaints with the Trailblazer. Heat is always on and you can’t turn it down. While rare, Rinnai tankless water heater problems can still occur. (2) Your heater core may be blocked with deposits. Turn on the key and try the blower. Not having a functioning heater makes driving much less comfortable, and can be a sign of certain issues. 3. like truckingjeff said, check the tube coming from the vacuum ball, on my truck this came loose and cause this problem, after that tube was reconnected everything worked fine. Utility only-Allow the adhesive to set for 15 minutes, or until the adhesive skins over. Check for the heater hoses near middle of firewall. G. Expert 76 Answers. Pretty sure that's what the problem was. 00. Took it apart and the round black vacuum thing floats up and down when I move the heater control, thus meaning the switch must be good and I have vacuum. climate control set to auto. Fuel Level Sensor Failure. Main Index 98 blazer: doesnt blow. Verified air conditioner was in fact running. 1993 Chevrolet S10 209,786 mi, Visitor. GM Replacement Power Seat Switch on Amazon - https://amzn. Subscribed. The temperature door diverts air over the evaporator for cool air or points the flow over the heater core for warm air. Dual climate control issue. 2 liter flex fuel engine. If your vehicle has a Fan knob, then turning the knob counterclockwise will decrease the fan speed and turning clockwise There are many different reasons why your Dodge Ram may have heater control problems. Disconnect the valve from the heater hoses. 1983 - 1987 Chevrolet Blazer S10 A/C Heater Climate Control Unit P: 16002341 OEM Heater A/c Control BLAZER S10/JIMMY S15 83 84 85 (Fits: 1983 7 posts · Joined 2019. [Description] Package included 1 × A/C Heater Temperature Cimate Control Knob. It seems the blend door is not working I looked at all my hydraulic actuators and they are moving and working fine I just need a schematic of the heater area near the blend door where you access it on the driver side. P0147 is the OBD-II generic code indicating the Engine Control Module (ECM) has tested the O2 sensor heater circuit during startup and detects problems with the bank 1 sensor 3 O2 sensor heater circuit. If so, put your test light from C to B. But as long as you are there, by all means test it. w/ Manual Temperature Control (cannot set a numeric temperature, only red/blue dials) FOUR SEASONS 20267. 96 97 98 1996-1998 Chevrolet C1500 Heater & 1. Replace the blower motor speed switch in the A/C-Heater control panel with a new one to solve the problem. 2l. I have a 1994 Chevy T10 Blazer 4x4 with the 2. 1A Auto shows you how to repair, install, fix, change or replace a bad or broken HVAC control panel. or Best Offer. 98 blazer won't engage front wheels encoder motor is working and has a new vacuum actuator. 16 - $39. 3Z A/C Automatic. This can result in incorrect air delivery or temperature. Perfect match for the original car. Intake Manifold Maintain the comfort of your Chevy/GMC, Ford, and Dodge truck all year round with high-quality heater and air conditioning parts from LMC Truck. transferring engine. 7 posts · Joined 2019. Some relays may not activate until the car is running and have a Fan Switch Doesn't Work On All Settings 5. THere is also a hose (3/4) from the engine that goes to the heater control valve and there is a smaller hose (5/8) that goes from the heater control valve to the line that leads to the rear heater core. The blend doors direct air thru the vents and the heater core. Posted on Dec 02, 2014. Asked by pleasehelp in Disconnect the blower motor. 3 pins. Other symptoms can include difficulty starting the engine, poor fuel economy, and even the check engine light coming on. Tried replacing with 2 from junk yard. 0L, 5. Close. johnnybikesalot. 257 people reported this problem. My 1994 blazer has issues with the heater control: temp, blower speed I have an electrical short on my 1994 blazer 4x4. You can tell when P0030 is in effect if the check engine light is lit and if your vehicle suffers from decreased fuel mileage. Electrical faults and damaged gears are some of the reasons why the blend door actuator can fail. $109. Next remove all the undash plastic, glove box, front Hello, and welcome back to another car repair video. This video is part of this thread: A common problem is to find one day when moving the climate control knob on your 98 Blazer to the cold position and tap the A/C button you get still hot air and I have 98 with the 2. 2WD. stuck on vents right now. See our manual for 1988-98 Chevy and GMC C/K 1500/2500/3500 Trucks, Blazer, Tahoe, Suburban, and Yukon On-Board Diagnostic System and Trouble Codes at Haynes. ] 16237058. Posted on Dec 12, 2012. ZR2 suspension points. It does look like a 37LL though. The light should change intensity as the blower controller is moved up and down. 79. When I have it on floor it goes to defrost since it is the default. A/C Heater control 98 chevy s10 blazer These trucks have a problem where moisture builds up in the heater box then freezes. Install the stud to the dash panel, if necessary. Not easy cracking. The 3/4 from the engine had a quick disconnect on it. Paul M ASE Master. 02-20-2005, 01:01 PM. Related Makes. First no heat, second the air is not getting directed properly. 3L, 5. Scan the HVAC for codes. One of the most common symptoms of a failing ignition control module is engine misfires. I have a 98 Chevrolet Blazer with temperature control. Re: no floor heat 2004 Blazer. Climate control modules are the central control for the heating and A/C system, and use actuators below the dash to reach the desired 2005 Chevrolet Blazer A/C Control Panel and Components; 2004 Chevrolet Blazer A/C Control Panel and Components; 2003 Chevrolet Blazer A/C Control Panel and Components; Chevrolet Blazer A/C Heater Blower Motor; Show Less. 16. The most common reasons a 1998 Chevrolet Blazer heater isn't working are a broken heater blower motor, a problem I have a 1998 chevy blazer with a 4. AC Refrigerant Leak. Restores functionality - this knob is made to fully restore appearance and functionality after the original part fails. Unknown member Discussion starter. 50. Thanks. Rust in Cooling System, Heater Inoperative, Blows Cold Air, Engine Overheats (Flush Cooling System) 1996-2000 Chevrolet and GMC S/T Models (Blazer, Jimmy, Sonoma, S10 Pickup) 1998-2000 GMC Envoy 1996-2000 Oldsmobile Bravada with 4. Check Availability. common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost. 1 (855) 347-2779 · hi@yourmechanic. It switches from heat to air and back all by itself. Vents Malfunctioning 2. 2005 Chevrolet Trailblazer AC / heater Remove the floor air outlet duct extension (1) from the floor duct (2). Heater doesn’t work. Now when its all hooked up and I watch the 179 posts · Joined 2004. No one even lists a light bulb for behind the heater control except for GM and they want $6+. The unfortunate reality is many things can cause HVAC issues in your car, including a loose connector, bad wiring harness, faulty blower motor, and even a basic issue with the cabin air filter . Step 3: Remove the idle air control valve’s bolts or screws. It is possible that one or more of them is stuck in a certain position. 3/700r4 315k- ole red. If the water pump is not strong enough to push coolant through the heater core but strong enough to curculate coolant through the engine and radiator you will never know till the pump is replaced. Ok guys, here's what I knowNo heat on a 98 Blazer. Closed. So the heat seems to be working fine just the door is not opening properly. It speeds up and slows down all by itself. On older vehicles, the valve is operated by a cable, while newer vehicles used a vacuum actuator controlled valve. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. Chevy Blazer 1998, HVAC Heater Blend Door Actuator by Four Seasons®. 98-05 OEM CHEVY GMC CLIMATE CONTROL Does a 1995 s10 blazier come with a factory rear bumper tag light. com. needs a new electronic temp control in dash according to mechanic. Helpful 0 ; Not Helpful Anonymous . Reconnect the heater core's hoses, turn the radiator's drain plug clockwise to close it, then refill the coolant system with a 50/50 percent mix of coolant and water. No heat to feet or defrost. #4 · Oct 25, 2009. Remove the center console duct. if so either your defrost and floor heat switch failed or wire problem. That is the whole problem. I found these instructions for a 98 s10 blazer. $78. $38. Put your test light from A to B. Turns on and off by itself. 1998-2005 Chevy S-10 GMC Sonoma Climate Control Unit A/C Heater Control 16250545 (Fits: 1998 Chevrolet S10) Brand New: Autoparts-Factory. These trucks have a problem where moisture builds up in the heater box Step 3: Replace the relay. I replaced the heater door actuator motor and still no change. The PCM can also log the P0147 code if it detects a Heater working but only blows out front vents. #2 · May 12, 2020. 98-04 OEM Chevy S10 Blazer Heater Control Switch 2002 GMC Sonoma 15098965 2332. This video is regarding the repair procedure for a GM Full Size Truck AC Heater Fan Speed switch AND a complete climate control assembly replacement. Engine Intake Gaskets Blew Out 1. The Best in Auto Repair Find a Shop. then when you go to max ac the valve closes off the water flow to the heater core. You should find two 1/8" plastic vacuum lines coming from the a/c-heater switch. johnnyt3, 06/12/2013. Blower Inoperative 2. It is possible for the check engine light to come on in Blazer due to a loose or bad gas cap. stays warm but not very warm. 3 engine 4x4 and climate control. 3L V6: Heat & Air Conditioning: A/C Compressor: A/C Compressor & Component Kit: A/C Compressor Bearing: A/C Compressor Bypass Pulley: Blower Motor Control Module / Resistor: Blower Motor Vent Tube: Blower Motor Wheel: Cabin Air Temperature Sensor: Heater Air Door: Heater Air Door Actuator: Heater Core: Heater The heater control valve regulates the flow of hot coolant into the heater core. MagRce1 said: I had this same problem on 1997 k1500. Furthermore, it can cause an inconsistent or intermittent fan speed, leaving you without proper airflow. K thats what I'm startin to think also. It can also happen because of low coolant levels and faulty climate control units. if not, pull the motor out. 3 engine) has an egr vlaveEgr ww2 justanswer I just bought a 98 chevy blazer 4x4, and the previous owner said he hadI have a 1992 blazer. 44. 96 97 98 1996-1998 Chevrolet C1500 Heater & AC Control Unit OEM. 0 %. AC compressor of my 01chevy blazer. needs a new electronic temp control 98 blazer doesn't blow heat. I noticed that the hot air in the passenger compartment got 1998 CHEVROLET BLAZER 4. $54. I checked the vacume and it works fine. I was just wondering if anyone knew off hand what could be the problem, so I might be able to fix it before winter because money is tight now. Todd S10. I have a 98 S10 LS 2. Click on a problem below to read more. Price: Alternate: No parts for vehicles in selected markets. Now, remove the bolts or screws used in holding the car’s idle air control valve in place on the block. 124 Answers ; SOURCE: heater control 98 chevy s10 blazer. Step 11: Reassemble the dashboard and glove box. A/C Blows Warm Air 3. CASE 2: All 3 terminals had 12 Volts where indicated in the test steps. Jump to Latest Follow 4K views 8 replies 4 participants last post by 99moneypit Nov 19, 2011. On a 95 the glove box can be removed with just 6 to 8 screws 7mm, so have a look. Durable construction - this part is made from quality materials to ensure If voltage goes to the blower motor, it’ll need replacing. Buick A/C Control Panel and Components; Cadillac A/C Control Panel and Restricted or plugged heater core will reduce heat exchange into the passenger compartment. Step 4: Hold the downward-pointing valve and spray the end. Using the J 39200 DMM, backprobe the jumper at C3 terminal B (CKT 733) to ground. Long-life alloys provide corrosion resistance High-strength brazed joints ensure durability This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts are designed to work with your GM vehicle safety systems -- In this Video I'm showing you How to Remove a Heater Box from an S10 OR Blazer, It is super simple to do and if the Fender is already off then its that much Installation Procedure. 2001 CHEVROLET BLAZER. How to Remove and Replace a Heater Control Valve on a #Ch About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The control panel is responsible for controlling the operation of the heater and the thermostat. 98 Blazer Misfire. Economy . The dual climate control issue usually manifests itself when one side, either the drivers or passengers blows cold air and the other blows hot air. I just ran to the store and back and when I smacked the speed bump it started workin (switch was already on high). if you have You can check this by setting in the passenger seat and running the temp control lever back and forth from hot to cold and listen under the glove box to see if you If you are not getting heat and the engine IS reaching operating temp then check the heater core by touching both heater hoses; they should both be hot. 1995 Chevrolet Blazer. My father got this car when it was about a year old. That's usually a vacuum issue. An attached fan forces heated air through the heater core fins and into the cabin when the heater is on. I get no heat to the floor, defrost and dash works fine but nothing to the floor. Flushed the heater coreno heat. Been a while since I had a 98 apart, but I think the mode valve actuator is mounted on top of the heater case, left side. My father replaced the resistor and this - Answered by a verified Chevy Mechanic Describe your issue The assistant will guide you. Transmission has completely lost reverse The most common causes for AC not cooling properly in Chevy Blazer are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. maybe your coolant mix isn't right. 1,080 satisfied 99 blazer-blower works fine but no warm air. Diagnose a heater control valve No heat due to bad heater control valve. GET A QUOTE. 2 posts · Joined 2017. Too bad the others aren't this easy to access. 2 the temp selector doesn't seem to work but I don't know if it is that or something under the dash, I think it is stuck at about 80% heat. Gm had update on this and it sez you can install a heater control valve p/n 14044414 or a Murray 74800. It is getting vacuum to the back of the heater control. control module. replace fuse (s) turn car to run wait for 40 sec or so. Low coolant level or air in the cooling system This video is part of this thread:http://www. kalamykid : None. Flushed the entire cooling systemno heat. The blower motor resistor (located on top of the heater core housing and behind the glove box) isn't hard to test. Check under the dash and make sure The most common symptoms of a bad blend door actuator include abnormal noises, incorrect climate control outlet temperature, and varying outlet temperatures. eBay; eBay Motors; Parts & Accessories; Car & Truck Parts & Accessories; New Listing 1998 +Chevrolet S10 Blazer HVAC Heater AC Climate Control Switch Panel . Removing the radio might help to get at it. A: Protected Component: 1: 20 ’95-’97: Stoplights, Hazard Warning Lights, Chime Module 10 ’98: Headlamp Switch 2: 20 ’95-’97: Dome Light, Glove Box Light, Lighted Visor Mirror, Horn, I/P Courtesy Light, Cigar Lighter, Liftgate Glass Release, Power Mirror, Endgate Lock Switch, Keyless Entry, Cargo Lamp, Driver’s Information Display Center, Common Trouble Signs. 21,873 Answers. (It has the 2. now i installed the valve Step 10: Install the new heater control valve. Today we will diagnose and complete an electrical repair on a 1998 Chevrolet Blazer to properly fix the 98 blazer heater issue Ok sounds like you may have two seperate problems. However, the air should get warm fast – and 1992 S10 short bed. wait about 30 sec. One violet line goes to vacuum source and one white line goes to the heater shutoff valve. the hvac system has problems, I was having a terrible problem with the wheel bearings on my 98 Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversion Step 1 – Recalibrate the HVAC. 2003 S10 LS 2wd x-cab/short 4. # 5081531620. $44. For instance, confirmed fixes for the P0155 code in a Ford, specifically a 2005 Ford F-150 XL 5. This lasts from a few seconds to over a minute. 1999 Chevrolet Blazer. Low coolant or air in the cooling system. Every single type of water heater can experience issues from time to time and this doesn’t necessarily mean the product The Chevy Blazer was revived in 2019 after GM first retired the nameplate in 2005. The 93gsxturbo wrote: There is a reset procedure that basically involves pulling the batteries or the fuse for the controller for 10 minutes and forcing a relearn that My 98 Blazer with climate control had a similar problem. Turn the ignition off. Sara Santos. I've searched the forums and found apparently two fixes and I am confused as to which one is appropriate. Check any vacuum hoses from engine all the way to heater/a/c housing under dash,for leaks. 1999-2004 Chevy S10 Blazer Heater Control Switch Sonoma 2003 2002 16250565 V88. I will get out the magnifying glass when I get home and look again. chevy dealer says they need t CHEVROLET > 1998 > BLAZER > 4. 98. We had to start with this issue because it is the most common issue that Silverado owners experience. A common symptom of a faulty blower motor resistor is a blower motor The most common causes for AC blowing hot air in Chevy Blazer are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Before replacing Heater Control Unit, it would only blow hot air from front vents- With this replacement it will now change from cold to hot and the air flow pressure does change from the front vents when changing the setting dial but there is still no air at all to feet and Replace the heater core with a new one by sliding it into place and securing the mounting bolts. outside in the low 60’s. 2/TH400 Email Report someotherguy Senior Moderator Vent control issues - most likely gummed-up linkages on the vent position actuator, which is at the far driver's side of the HVAC duct box, roughly above the driver's side of the transmission hump. Air conditioner blower. Common Chevy Silverado Climate Control Problems 1. 4, include repairing the variable valve timing (VVT) solenoid wiring or the O2 sensor wiring. The worst complaints are electrical, AC / heater, and engine problems. If the engine doesn’t reach the operating temperature after 15 to 20 minutes of running, you need to check whether the thermostat is working properly. Check Engine Light comes on. Helpful 0. #6 · Jul 29, 2009. Estimated delivery date Est. 37 % of the time it's the. i have a 2002 s10 v6 with air. Like. If the doors are not in The climate control panel switch that switches from Max AC, to Normal AC, to defrost, to heat, etc. the heater does not work, i think First, check the fuses related to the heater control module. What a Heater Control Valve does and how to test (most of them). 133,800 MILES. The same goes for A/C as well. 1998 chevy blazer heater problems. See All 4 Location s. My 1999 blazer heater does not switch from hot to cold I've tried a new control head but have the same problem - Answered by a verified Chevy Mechanic i have a 1999 chevy s-10 blazer with a 4. Remove the screws from the center console duct. As soon as the ABS light goes off, the blower and power windows work. 471 people have reported this. one wire on the actuator harness (while disconnected, but ignition on) should I'm having a problem with no floor heat on my 03 Blazer and hope someone can help me out. 100% satisfaction guarantee Get all the answers you need. 1998 s10 4. One of the first symptoms of a faulty heater control valve is a heater that fails to produce warm air. MOCW 9378815 15-72548 599-007 AC Heater Control Panel Climate Control Module Switch Without Rear Window Defogger for 1996-1999 Chevy Truck GMC C1500 C2500 C3500 K1500 K2500 K3500 Truck 16231175. Some 1994 Chevy/GMC 3405 Rogers Road. The various airflow settings may also fail to work or you may not get any air from the vents. Reinstall the dashboard, glove box, and any other components that were removed. 7L). Up until a few weeks ago it was working fine. Get the best deals on HVAC Controls & Control Units for 1983 Chevrolet S10 Blazer when you shop the largest online selection at eBay. i picked up a 98 Blazer 4 door the LS model, with 121000 miles, all highway, its a very clean car, i got i for 2700 bucks , first thing i noticed when driving it after 3 days You helped me yesterday with my 98 Chevy Blazer that’s having problems with air handling specifically it was stuck blowing air out the dash and would not divert Here are some of the warning signs of a bad heater control valve: No heat comes out. Got a Problem with your 1998 Chevrolet Blazer? Our list of 21 known problems, issues, recalls, and complaints reported by owners can help you fix your 1998 Chevrolet Blazer. 6 CYL. s10forum. 21. These trucks have a problem where moisture builds up in the heater box then freezes. The issues could be because of damaged wiring, blend door issues, vacuum hoses losing suction or a broken mixer box. Pre-Owned: OEM. Part two shows what I d My 1991 Chevy S-10 Blazer heater/ac fan won't work. P0030 is typically triggered when your vehicle’s control module detects problems in the heater circuit in oxygen sensor Bank 1, Sensor 1. . The fix is a simple $18-$25 part, the Resistor Block, which is located inside the back Firewall adjacent to the Blower Motor Housing. The heater core in your 1998 Chevy S10 Blazer is radiator-style unit, used to heat the interior cabin of your truck. 1999 Blazer Transmission Problems. 783 On a 95 the actuator to the far right should control the air inlet, same with the other years. Can anyone help solve this mystery? 1. Ok, So I'm going to try to describe my situation as best as I can for an "accurate" diagnosis. Module Experts brings more than 100 years of combined experience in module diagnostics and repairs on all types of control modules including Backfiring. Read full Two years ago I purchased this vehicle used (~150k), head gasket had just been replaced, otherwise in good repair, and it runs well. Took out radio and have the four wheel drive and rear window wiper,hatch units unplugged from dash and not yet put the radio back in either the heater works when turned all the way to right but cool to same temp anywhere else on the # settings and ac button when pushed just blinks now and wont kick on the ac. 746 subscribers. 279 people have reported this. 3L V6: Heat & Air Conditioning: A/C Compressor: A/C Compressor & Component Kit: A/C Vacuum Control Valve: Ambient Air Temperature Sensor: Blower Motor: Blower Motor Control Module / Resistor: Blower Motor Wheel: Cabin Air Temperature Sensor: Heater Air Door: Heater Air Door Actuator: Heater Core: Heater Chevrolet Master. 3L V6 > Heat & Air Conditioning > Blower Motor Control Module / Resistor. $15. Helpful 0 ; Not Helpful; Flag; Ad. Disconnect the electrical connection from the mode actuator (10). Roy 1. If any of the fuses are blown, replace them and see if it resolves the issue. 98 blazer: blower motor resistor. Check the hoses under the hood, paying particular attention to the hose that disappears into the drivers fender, just behind the ABS. (and inconvenient) problems with the Chevy S10 is when it has no heat coming from the heater. Several different problems can occur with the heater control system in a Dodge Ram including a coolant leak, faulty thermostat, clogged heater core, issues with the blower motor, and problems with the heater control valve. The tool costs around $100 and requires an air compressor to operate, or many auto shops can vacuum fill the cooling system for you. Make sure the heater core is free flowing, most of the time the core gets plugged with rust and slug and does not allow coolant to flow through. I get no movement from either the new or old heater actuator motor. Hello, I have a 1996 s blazer that will not switch the air output to the different locations on the dash. 1998 CHEVROLET BLAZER 4. Mechanical Failure consultant, Expert Witness. Then manually move or put a vacuum guage 1 post · Joined 2011. 64: $0. Heater problem 1998 Chevy Blazer 6 cyl Four Wheel Drive It could be the heater control valve or the heater core could be plugged not allowing coolant to circulate. Ask Your Own Chevy Question. 1998 Chevy Blazer 4x4 Transmission Problems. Free shipping on many items $45. Depress the control assembly retaining tabs The heater and air conditioner fan has gone crazy. Examples include flashing dash lights, a stereo system switching from AM to CD in the middle of a broadcast, the horn honking when you put down a specific window or SOURCE: heater control 98 chevy s10 blazer. 3L V6 Blower Motor Control Module / Resistor | RockAuto. I have not looked at my 95 but most vehicles come with a Here's my experiencing fixing the climate control. Free shipping. The guage still get's up to operating temps but still blows cold air. Your vehicle’s powertrain control module (PCM) will log the P0147 code when it detects that the oxygen sensor #3 on engine bank 1 takes too long to reach operating temperatures. Find the three HVAC fuses; Two are under the hood and one is in the cab fuse box. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty But intermittently the ABS light remains on. The cable/servo motor was stuck on at the heater valve. 4WD. #1 · Apr 13, 2022. I am not sure if it is the hydraulic actuator behind Quick & easy video on how to change your plain or worn out bulb to a colored LED bulb! Size bulb- T5 Blue LED - Correct Bulb SizeLink to one on Amazon:https: 0. Car at running temp (it has been running roughly a half hour) The air conditioner is on when I call for “HEAT”. Blazer/Jimmy. When this freezes and you change your heater settings it breaks the shaft for the blend door. 24 of 24 people found this review helpful. 3 liter engine. Wake Forest, NC. 8 liter V-6 Vortex engine with an automatic transmission. It helps keep the wiring harness against vibrations that can get it off the sensor. 3 Z auto GU6 235/75-15. spooky_pitboss Discussion starter 8 posts · Joined 2011 Add to quote; Only show this user #1 · Nov 18, 2011. 2000 blazer steering hard. You need to replace the broken blower motor or thermostat to fix your AC. The blend door was stuck on cold and I could not get heat. While the switch could have been the issue I also had a squealing The most common reasons a Chevrolet Blazer heater isn't working are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor. If this occurs, fault code (s) stored in the HVAC control module should be available to assist with diagnoses. My dads got a 98 Chevy Blazer, and hes got the push button 4 wheeldrive, and for some reason now it wont engage. See if you can move it by hand, only when engione cool, and do so gently. 0 out of 5 stars Part fit my GE washer 2 posts · Joined 2006. $40. If so, replavcing the core is needed to correct the problem. One of the keys to diagnosing a problem with the body control module versus an issue with an individual component is sudden, unusual behavior. The diagnostic trouble code (DTC) P0147 stands for “O2 Sensor Heater Circuit (Bank 1 Sensor 3). No heat chevy blazer no heat oldsmobile bravada — ricks free auto 92 blazer wiring problem Blazer heater wiring chevy 1992 92 diagram schematic truck think does work switch 2010 size harne. From the salvage yard I pulled the climate control unit, the heater valve control motor/cable assembly, and the temp-sensor thermistor. Check the valve for any damage or corrosion. Someitmes the clamp that holds it in place comes loose or it gets stuck. The worst complaints are heater does not work, a/c works sporadically, and heater core leaked. Remove the RDO BATT fuse for 10 seconds and then reinstall the fuse. Products are engineered and tested to provide years of trouble free operation. No-1. 98 Blazer heater core replacment (I just did it) jonathondw. Questions / Chevrolet / Blazer / 1999 / climate control problem; Climate control problem. Stable characteristics. 11. 00 + Sold in packs of 1 x 1: $15. Refer to the photos you took earlier if necessary. 83K views 11 years ago. Replaced T-Stat & Radiator capno heat. According to my trusty Haynes manual, for both pre and post 1994 Astros and Safaris, the climate control switch has an associated electrical switching network I had not noticed before. Some relays may not activate until the car is running and have a built in delay so you may need to start the engine and wait a few seconds to see if your repair was successful. Engine coolant flows, continuously, from the lower radiator hose to, and through, the heater core, causing the unit to heat. I tried the relearn procedure, pulled the fuse 98 S10 Blazer - Vent Actuator Problem. 1992 S10 Tahoe 2wd reg/short, white, 2. With the switch at off it should not run. 64: My 98 4dr Blazer had the code for years. , controls vacuum lines. $121. 1998-2002 GMC JIMMY CHEVY BLAZER A/C HEATER CLIMATE CONTROL 16250535. Anyway after researching it I found out it was just for emissions and it wouldn't hurt the engine or gas mileage so I never bothered on spending the $40 just for the light to go off. All the fans ,air & heat work, but the air flows from all vents on this 2003 s10 pickup. When the blower motor resistor goes bad, the motor can get stuck at one speed. My problems started about 2 month's ago. heater core isnt leaking but cant tell by touching hoses if there is circulation. Loose or bad gas cap. The 5/8 line to the rear heater core has/had a quick disconnet to an aluminun line. 95. Also stopping the coolant leakage will work too. Another symptom of a potential issue with the idle control valve is an illuminated Check Engine Light. Heater operates erratically, putting out more or less heat without any [Application] AC Heater Temp Control Knob for Chevy Blazer S-10 GMC Jimmy Sonoma. 09-27-2010, 06:58 PM. Disconnect the heater controller/heater and A/C controller connector C3. DTC P0030 stands for “HO2S Heater Control Circuit (Bank 1, Sensor 1). If you look on the side closest to the steering wheel, you'll see the cable. 98 s blazer heater control not responding no blower or any control - Answered by a verified Chevy Mechanic. BlazerBust. There's this sensor on top of the intake manifold and sometimes the valve gets stuck. If the heater control valve is malfunctioning, follow these steps: Locate the heater control valve (it’s usually located in the engine compartment). 92 4. This video is applicable to the 96 GMC Sierra🔧 List of Here I explain a very basic #automotive #repair that may save you some real cash by doing yourself. Usually a bad or failing blower motor resistor will produce a few symptoms that can alert the driver of a potential issue. Step 3: Replace the relay. If you want to test the blower control (speed) switch, the following tutorial will show you how: How To Test The Blower Control Switch (GM 4. is there a heater control valve or a flap in the air box. If it does, the motor is faulty. Reconnect the dashboard to the firewall, then replace the front dash panel and In terms of a faulty, or damaged relay, you need to replace the relay to fix this heater problem on your Ford F150. Report. Heater Core 1998-2004. The most common reason for your Chevy Blazer’s AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). Start the engine with cap still open and let the engine idle for a few minutes. If the engine doesn’t have enough air, the air-to-fuel mixture ratio is off, and some fuel might be left after the spark. Not having a Chevrolet Blazer Climate Control Module. TEST 2: Using A Jumper Wire To Bypass The Blower Resistor. Common signs include inconsistent cooling, out-of-date software, and uneven air distribution, since the module controls the whole AC system. The heater control does not change the air flow to any one position, all vents seem to be open at one time. Sometimes during this the brake light also comes one. A/C or heater seem to run in background when it looks like it is "off". Check the blend doors first. A blown fuse can prevent the module from functioning properly. The most common reasons a Chevrolet Blazer ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. In this tutorial I'll show you how to continuity test it with a multimeter in Ohms mode (Ω). Chat 1:1 with a chevy mechanic Licensed Experts are available 24/7. The heater may stop working in Chevy S10 due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty blend door actuator, bad water pump, dirty cabin air filter, bad blower motor, or HVAC control unit malfunction. This is Diagram wiring blazer cc need durango cruise dodge 2004 series gif chevy gen 4bt 2005 forum cummins diesel control photobucket. Read FAQ. 7L engine in it, with a digital heater/ac unit, i've even checked the actuator and the blend door-they are operating, changed out the thermostat and the heater core, I have one heater core hose coming off the right side of the heater core going to the engine and the left hose going to the radiator, both hoses are The control panel is responsible for controlling the operation of the heater and the thermostat. Friday, January 3rd, 2020 AT 3:14 BLAZER: 4. Please try again later. SOURCE: Heat wont blow through heater or defroster vents. [OEM No. Insufficient coolant. Without coolant flow to the heater core, the heater will not be able to produce warm air 98 s10 blazer What does a vacuum actuator do and how does it work on a 1991 chevy 4x4 Chevy s10 common problems. 1998 Chevrolet Blazer Heater A/C Control Assembly w/Rear Window Defogger PIGTAIL. 233 people have reported this. wont switch from defrost to floor. So I have a couple problems with my Dual climate control. It will have a red tab that is "clicked" in. This should bleed off the air bubble. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with Four Precision engineered OE style connectors. control Ford explorer heaters can malfunction because of a broken blower motor, or a bad thermostat. The climate control module allows you to adjust the comfort settings of your Chevrolet Blazer, including the temperature, vent position, and blower motor speed. BCM problems can also mask issues with other modules in your vehicle. to/2N1ArOYThis video outlines the troubleshooting steps that I took to diagnose the power seat cont I have a 1998 Blazer and the ac/heater blower stopped working on all speeds. it is on the powerI Symptoms Of A Bad Blower Motor Resistor. heater. This tutorial compliments this one on testing the blower motor resistor: How To Test The Blower Motor Resistor (GM 4. Thanks by the 98 blazer won't engage front wheels encoder motor is working and has a new vacuum actuator. Anyway check there first. you should be able to get a flashlight and watch the motor turn back and forth. I had heat problems with it last The heater core valve is stuck or the cable that actuates it is not working. For the air not hot, check the heat control valve If your fan speed control does not seem to work you may want to replace this fan speed control component. I have heat on defrost and panel. TEST 1: Checking Continuity Of The Blower Switch Fan Speeds. I have a 98 blazer that the blower motor is not working I checked for fuzes and I bought a blower motor resistor to replace but I do not see anything like it then I found it has a blower motor Heater fan blower issues. There seems to be a problem serving the request at this time. $29. If the coolant level should drop as the thermostat opens, top it up as necessary. One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. 2) The air turns on by itself randomly. O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3) What the P0147 code means. 3L V6 A/C and Heater Control Switch / Panel | RockAuto. You might ask the parts store to show you a replacement heater core I assume your heater setting is electric control, if so either your defrost and floor heat switch failed or wire problem. Problem Description. Install the blower motor resistor. Was: $49. While it's on the blower and power windows won't work. 75. #1 ·Sep 24, 2011. Contentshide. The average cost for a Heater Core Replacement is between $1,030 and $1,235 but can vary from car to car. This is part oneI also removed the entire dash to see what the big fuss was all about. Vacuum line Schematic- Heater schematics. 82,000 MILES. 2000 Chevrolet Blazer AC / heater problems with 21 complaints from Blazer owners. The gear inside the motor will crack if it is overdriven. Hi, I have no heat going to floor, or defrost+floor, or floor+panel. ASE Master Tech. The little white arm on the heater box is not broke and floats along with the black vacuum switch when moving the controls. 8 T5 GU6 GQ1 235/60-15, Z65 box, JeepShaft, glasspack, G6 seats. Blower motor stuck on one speed. Disconnect battery cable. Second. temp set to 73. It should follow the speed selected. There are doors behind the dash that direct air blown by the blower that could be broken, stuck or the vacuum operated valve that controls the door could be stuck or leaking causing the door to no move when commanded to any more. Loss Of Power 4. ld og fc sc lq ew ep qy xw bf