2002 Gmc Envoy Blowing Hot Air

It's has automatic dual zone comfort control system. Search 2005 GMC Envoy Recall Notices by Envoy. You may also want to get the compression checked. When one or more of these components fails, the heat or cold air capabilities go along with it. My AC on the drivers side blows hot. Heat blows hot air blows cold. Check the resistance in the blower motor circuit with a 12-volt test light and compare the results to the proper voltage specified in the owner's manual. If your heater starts by throwing warm air out of your registers, but you are soon left with a heater blowing cold air, then I would suspect that your flame sensor needs to be cleaned. Hello, The settings on my car there is no air blowing out of my vents either it is on AC or Heat, when the setting is at High the air is working fine. Problems with fan clutch and ac blowing hot air. Only the lower vents and the windshield blower working. My wife had been in the habit of trading her cars every 18 months before she got the Envoy. The compressor clutch is NOT. Air flows through the case and a series of doors that the actuators open and close to control this flow. If I set the temp to 60 it blows cold air and both sides feel the same, I didn't check the actual temp of each vent though. If cold air fails to blow through the vents in a GMC Envoy, a bad blower motor resistor may be to blame. 2002 gmc envoy. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. I have a 2002 GMC Envoy with an A/C issue. ? that and then it went to blowing hot air all the time i had to replace to. 2002 gmc envoy dash vents on driver side blows hot air. When the temperature setting is in the the cool setting I get hot air. blow out the. If I would switch to the heat setting, and then go back to cold setting, heat would still blow out of the vents even tho I could hear compressor working. In the process I also used an air dryer kit. Some customers may comment that the A/C system is intermittently inoperative or blows warm air. I first ran into this problem after changing a battery in one of these vehicles … Continue reading "2003 GMC Envoy, No A/C Vent Control, B0263". driver side is ok & coolant level is fine - AC Cars & Trucks question. Not to mention it was anywhere from 30 to 60 dollars cheaper than parts stores and dealerships. I've not had it diagnosed but I turn. 2002 Envoy runs hot: Never mind air temps and forecast temps right over. Edmunds has detailed price information for the Used 2006 GMC Envoy XL SUV. could use new suspension. How To: Replace a Broken Power Door Lock in the Front of a 2002-06 Chevy Trailblazer or GMC Envoy How To: Install Replace Front Drive Shaft 2002-08 Dodge Ram 1500 How To: Replace the Cabin Dust and Pollen Air Filter in Your 99-04 Honda Odyssey. It’s scorching hot both inside and out. Not through the dash vents. DEAR CAR TALK: I have a 2009 GMC Envoy with less than 40,000 miles on it. The front driver fender is bent from some1 kicking it. 07-30-08 06:17 PM - Post# 1488845 Well. I checked codes and found a code B0263 for a fault with the mode actuator. Aftermarket stereo sub and amp. The problem is that the air conditioning drops out on me. 2-L 6 Cyl) “The correct vents did't open for air or heat The rear view mirrors do not adjust correctly after backing up ( yes I. it stops working after 30 min or so mostly when it,s hot out side. Tried re-calibrating by pulling the 39 HVAC fuse, waited 1 minute, replaced the fuse, turned the switch on but not starting the vehicle, waited a few minutes,could heard the vehicle re-calibrating, started the vehicle, SAME PROBLEM. I have a similar problem, except that my outside temperature sensor will say that it is as low as -33 degrees, at which time, the A/C starts blowing hot air to attempt to get the car to the set temp of 60 degrees. rear heater does not blow hot air 2002 envoy; 2002 envoy not heating up; Gmc Envoy Speedometer Problems; Envoy flickering lights; Thermostat Gasket & Housing; Envoy A/C NOT BLOWING AT ALL; Replacing Shocks; 2003 GMC Envoy Powerloss; 2000 Envoy heater only blows cold air; New Here. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. 07-30-08 06:17 PM - Post# 1488845 Well. My air conditioner worked fine for one week and after that it takes times when it. Motor Trend reviews the 2007 GMC Envoy where consumers can find detailed information on specs, fuel economy, transmission and safety. 2002 Chevrolet Trailblazer-Air Will Not Blow Out Of The Floor Vents For Heat Author Sparky Posted on November 22, 2016 November 22, 2016 Categories Sparky's Questions & Answers Rodney: My HVAC blows hot and cold but all vents are open except driver and passenger feet vents. While both driver & passenger side temps & fan speed are set the same, the drivers side blows hot air & the passenger side blows cold. I have a 2002 GMC Envoy , A/C blows cold and then sometimes it just starts to blow hot. the A/C low pressure lines our cold, but not cold air. Gauge lights come on then go off erratically. The air conditioner on my 2002 GMC Envoy blows cool air on drivers side and hot air on passenger side what can it Ai - GMC 2002 Envoy question. Check the resistance in the blower motor circuit with a 12-volt test light and compare the results to the proper voltage specified in the owner's manual. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. Research the Used 2006 GMC Envoy XL with our expert reviews and ratings. When the AC is on it blows hot air and when the heat is on it blows cool air. it stops working after 30 min or so mostly when it,s hot out side. Find local 2007 GMC Envoy prices online. Gmc Envoy for sale in Albuquerque NM Albuquerque isn't just the city where they filmed Breaking Bad or the name of an epic Weird Al Yankovic ballad, it's a colorful city with a rich history. And, being rather warm in the car, I lowered the temp to 60 degrees, and while it was blowing out somewhat cool air, it was NO WHERE close to being cold air - certainly not supposedly 60 degrees. 2003 Envoy XL, V8 Intermitent Starting. Edmunds has detailed price information for the Used 2006 GMC Envoy XL SUV. HVAC actuator replacement on a 2004 GMC envoy SLT with Automatic climate control. which blend door actuator should I be replacing? Engine Performance Problem 2002 Gmc Envoy 6 Cyl Two Wheel Drive Automatic. The compressor clutch is NOT. It starts off blowing cold cold air but then the compressor clutch disengages and the system blows warm humid air. Search 2005 GMC Envoy Recall Notices by Envoy. When the temperature setting is in the the cool setting I get hot air. When the air conditioner in your 2006 GMC Envoy starts blowing hot air, you likely have a freon leak. I have charged it a couple of times and during a the day 82degrees, it’s never blows cool air but later in the evening it would it gets cold. I had same problem with my 2002 envoy on passenger side. As soon as we would get out moving it would Quit blowing cold air. This will probably be our last gm car. 2003 GMC Envoy Electrical Problems. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. blow out the. But most of the time, it’s going crazy. Jul 18, 2010 | 2002 GMC Envoy XL. I have a 2002 GMC Envoy with an A/C issue. Q: All of the sudden, hot air is coming out of the two driver’s side air conditioning ducts regardless of what settings I attempt using on the control panel in my 2006 GMC Yukon. The 2002 GMC Envoy has 4 NHTSA complaints for the equipment:electrical:air conditioner at 0 miles average. Was blowing cold air on driver side and hot air on passenger side. my 2002 envoy is blowing warm air on the driver side and cold on pass. Driving home from work it was blowing nice cold air, then i just fell hot air. It starts off blowing cold cold air but then the compressor clutch disengages and the system blows warm humid air. If you are having problems with your A/C, the replacement parts and refrigerant for the system are expensive. I have been having a problem of Hot Air blowing out of the passenger front vents when the A/C is turned on. Find local 2004 GMC Envoy prices online. CarComplaints. Tried re-calibrating by pulling the 39 HVAC fuse, waited 1 minute, replaced the fuse, turned the switch on but not starting the vehicle, waited a few minutes,could heard the vehicle re-calibrating, started the vehicle, SAME PROBLEM. AC blowing hot or warm air? Want to figure out what the problem is before calling an air conditioning professional? This article is for you. 2003 GMC Envoy 245k miles and running strong CD & Radio Heat blows hot air AC is cold New water pump at 220k miles New valve cover gasket and spark plugs at 225k miles Tensioner and serpentine belt at 242k miles Car is a 4x4 This car runs and drives good and will get you where you need to go. Drivers side was blowing hot air all the time. We refer to the different air flow positions as modes. When the AC is on it blows hot air and when the heat is on it blows cool air. My air conditioner worked fine for one week and after that it takes times when it. as the other one,Now if no cold or hot air blowing out on all front vent only on windsheild and feet that is. Car problem(s) with the 2003 GMC ENVOY. If I set the temp to 60 it blows cold air and both sides feel the same, I didn't check the actual temp of each vent though. 2003 Envoy XL, V8 Intermitent Starting. If you notice that it initially vents out cold air, but over the drive goes to warmer air, then the problem is likely a frozen expansion pipe. The driver side of my gmc envoy is blowing cold air on the driver side an hot air on passenger? If a car suddenly begins to blow hot air when you turn on the A/C, then sometimes it blows cold air for a little while, what does this mean?. Needs work. Runs and drives just fine. During the summer, I’d. When the air conditioner in your 2009 GMC Envoy starts blowing hot air, you likely have a freon leak. But it would become less cold as the. GMC Envoy very little air from vents Unread post by chevyman » Thu Feb 20, 2014 10:47 pm Hello i have a 2002 gmc envoy slt with automatic a/c and the heat went out. To see how frequently GMC Envoy problems occur, check out our car reliability stats. I replaced control unit,but it did not help. Can you answer this?. Five months later the air conditioner works again. Dont have the time to do the work. This problem is intermittent. My 2002 envoy is having a/c problems. 2002 gmc envoy. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. The 2002 GMC Envoy has 1 problems reported for ac blows hot air. HVAC actuator replacement on a 2004 GMC envoy SLT with Automatic climate control. Car problem(s) with the 2003 GMC ENVOY. The 2002 GMC Envoy has 4 NHTSA complaints for the equipment:electrical:air conditioner at 0 miles average. HVAC Actuator Recalibration Procedure For GM Trucks and SUVs Author Sparky Posted on August 12, 2011 June 10, 2016 Categories Actuators & Vent Control Tags Actuators, Cadillac, Chevrolet and GMC Trucks, Recalibration. Replaced the OEM actuator with this one and now it works perfectly. 2002 gmc envoy ac blend actuator repair Honda civic 2009 a/c only blow hot air There were no leaks and literally 3min down the road the a/c starts blowing hot. the temp on the inside reads normal temp for out side and also when adjusting the inside temp it appears to read to the temp selected. Some customers may comment that the A/C system is intermittently inoperative or blows warm air. GMC Envoy 2002: GMC Envoy XL 1998 - 2002: GMC Jimmy 2007 - 2014: GMC Sierra 99-09 GM Various Models HVAC Air Door Actuator 03-08 Isuzu Ascender 05-09 Saab 9-7X. , vent, floor or defrost). What could be the problem?. 2002 gmc envoy. Not to mention it was anywhere from 30 to 60 dollars cheaper than parts stores and dealerships. My AC on the drivers side blows hot. About 25% of the time, the heat and AC work fine. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Hello, The settings on my car there is no air blowing out of my vents either it is on AC or Heat, when the setting is at High the air is working fine. Yesterday I drove home for the holidays and I noticed about half way through the trip that my 2001 yukon was blowing continous hot air out of the vents. Used GMC - Envoy - 2002 for sale in Elkton - GMC - Envoy - 2002 posted by Sarah Hutcheson in Elkton. When I turn on the air conditioning, it runs cold for about 20-30 minutes then starts blowing hot air. I have been having a problem of Hot Air blowing out of the passenger front vents when the A/C is turned on. If your Oil Furnace is Still Blowing Cold Air, Check Your Flame Sensor. I changed the thermostat, then the heat would blow hot/cold/hot/cold, I didn't realize you had to bleed the air out of the system after changing the thermostat. Average failure mileage is 100,400 miles. I just replaced my rear shocks and compressor. The quest for cold air is what drives the AIRAID Cold Air Dam Intakes. While both driver & passenger side temps & fan speed are set the same, the drivers side blows hot air & the passenger side blows cold. 2005 GMC Envoy Recalls - View 2005 GMC Envoy Recalls on Production Vehicles at Autobytel. And, being rather warm in the car, I lowered the temp to 60 degrees, and while it was blowing out somewhat cool air, it was NO WHERE close to being cold air - certainly not supposedly 60 degrees. I have 2005 Envoy & AC works sometimes & most of the time not. Engine And Engine Cooling Problem on the 2003 GMC ENVOY. It starts off blowing cold cold air but then the compressor clutch disengages and the system blows warm humid air. Even the brake pads are still the originals and easily have another 20,000 miles left on them. I have a 2002 Envoy SLT. The compressor clutch is NOT. 2002 gmc envoy. You get in the car. CarComplaints. Home Forums > Chevy SUV & Crossover Tech Forums > Chevy Trailblazer Forum (GMC Envoy) > 2003 Trailblazer A/C blowing hot air Discussion in ' Chevy Trailblazer Forum (GMC Envoy) ' started by ryless01 , Jul 27, 2010. Try turning all the AC and heat controls off and then unhooking your battery for a few hrs or overnight. it stops working after 30 min or so mostly when it,s hot out side. A Cold Air Intake will increase the Horsepower of your GMC Envoy. If I set the temp to 60 it blows cold air and both sides feel the same, I didn't check the actual temp of each vent though. See all problems of the 2004 GMC Envoy. GMC Envoy Bad mode door actuator - 61 reports. See all problems of the 2004 GMC Envoy. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Gauge lights come on then go off erratically. have a brake question. It's going to the service dept this week. Only the lower vents and the windshield blower working. I had same problem with my 2002 envoy on passenger side. While both driver & passenger side temps & fan speed are set the same, the drivers side blows hot air & the passenger side blows cold. 2002-2003 GMC Envoy, Envoy XL 2003 GMC Sierra, Yukon, Yukon XL 2002-2003 Oldsmobile Bravada 2003 HUMMER H2 Condition. When the air conditioner in your 2009 GMC Envoy starts blowing hot air, you likely have a freon leak. The air conditioner on your GMC Envoy cools the passenger cabin by blowing cold air from the A/C compressor through the HVAC vents inside the vehicle. My air conditioner worked fine for one week and after that it takes times when it. At times it sill blows when the vehicle is off & key removed. My 2002 envoy is having a/c problems. Save money on Used 2006 GMC Envoy XL SUV models near you. Motor Trend reviews the 2007 GMC Envoy where consumers can find detailed information on specs, fuel economy, transmission and safety. I have a 2007 Honda Accord. By freeing up the intake track of that your engine relies on to make power a cold air intake is a inexpensive way to increase the performance of any Envoy. While there are many, many reasons your air conditioner is blowing hot air, we’ll run through the most common causes that you can fix or diagnose on your own. Learn about this problem, why it occurs, and how to fix it. Selling my 2002 GMC envoy. rear heater does not blow hot air 2002 envoy; 2002 envoy not heating up; Gmc Envoy Speedometer Problems; Envoy flickering lights; Thermostat Gasket & Housing; Envoy A/C NOT BLOWING AT ALL; Replacing Shocks; 2003 GMC Envoy Powerloss; 2000 Envoy heater only blows cold air; New Here. As soon as we would get out moving it would Quit blowing cold air. 2002 Chevrolet Trailblazer-Air Will Not Blow Out Of The Floor Vents For Heat Author Sparky Posted on November 22, 2016 November 22, 2016 Categories Sparky's Questions & Answers Rodney: My HVAC blows hot and cold but all vents are open except driver and passenger feet vents. , vent, floor or defrost). When the air conditioner in your 2006 GMC Envoy starts blowing hot air, you likely have a freon leak. I checked codes and found a code B0263 for a fault with the mode actuator. Can you answer this?. The air conditioner works fine -- it blows cold air. If I set the temp to 60 it blows cold air and both sides feel the same, I didn't check the actual temp of each vent though. When you stop AC stops blowing & when you press the gas it blows again. Runs and drives just fine. it now does not keep the speed at all. Reset it with battery and an couple - Answered by a verified GM Mechanic. For quick fix that worked for me is the actuator must be sticking cause I removed glove compartment door n just letting it hang to floor and actuator is to the left inside dash behind glove compartment and while switching from hot to cold I was tapping it with a hammer and it started working and still is, hopefully helps few people for. As soon as we would get out moving it would Quit blowing cold air. Breakers and fuses are designed to trip or blow when too much voltage is sent through the line. Best Answer: I also have a 2002 Envoy. I also notice it does the same thing with my defrost but it is still hot. My air conditioner worked fine for one week and after that it takes times when it. HVAC Actuator Recalibration Procedure For GM Trucks and SUVs Author Sparky Posted on August 12, 2011 June 10, 2016 Categories Actuators & Vent Control Tags Actuators, Cadillac, Chevrolet and GMC Trucks, Recalibration. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. How to Troubleshoot a 2002 GMC Envoy A/C by Alibaster Smith The air conditioner on your GMC Envoy cools the passenger cabin by blowing cold air from the A/C compressor through the HVAC vents inside the vehicle. When heater is on cold air comes out of drivers side vents passenger vents have warm air copming out. The problem I have is that when you turn the ac on the cool air only comes out the 2 vents on the passenger side. Reset it with battery and an couple - Answered by a verified GM Mechanic. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. I replaced control unit,but it did not help. GMC Envoy Bad mode door actuator - 61 reports. The quest for cold air is what drives the AIRAID Cold Air Dam Intakes. When the air conditioner in your 2006 GMC Envoy starts blowing hot air, you likely have a freon leak. Five months later the air conditioner works again. Even when I selected the recirculate button and a/c it still would blow hot air. When the air conditioner in your 2009 GMC Envoy starts blowing hot air, you likely have a freon leak. GMC Envoy 2002: GMC Envoy XL 1998 - 2002: GMC Jimmy 2007 - 2014: GMC Sierra 99-09 GM Various Models HVAC Air Door Actuator 03-08 Isuzu Ascender 05-09 Saab 9-7X. 2003 GMC Envoy Electrical Problems. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. The 2002 GMC Envoy has 4 NHTSA complaints for the equipment:electrical:air conditioner at 0 miles average. This will probably be our last gm car. Was blowing cold air on driver side and hot air on passenger side. The most logical cause of your air conditioner tripping a breaker or blowing a fuse when it comes on stems from a problem with the electrical connection, the power supply, or the circuit that powers the system. Research the Used 2006 GMC Envoy XL with our expert reviews and ratings. While both driver & passenger side temps & fan speed are set the same, the drivers side blows hot air & the passenger side blows cold. Another way to determine why you are faced with a problem of car air conditioner blowing hot air is to see when the unit blows warm air. It's has automatic dual zone comfort control system. When the AC works it blows cold air. I had same problem with my 2002 envoy on passenger side. Average failure mileage is 100,400 miles. It’s scorching hot both inside and out. Any ideas? When it stops it blows outside air,which is the hot air from outside. There are vent ducts that have flaps that open and close to direct air. Learn about this problem, why it occurs, and how to fix it. Engine And Engine Cooling Problem on the 2003 GMC ENVOY. If I would switch to the heat setting, and then go back to cold setting, heat would still blow out of the vents even tho I could hear compressor working. HVAC Actuator Recalibration Procedure For GM Trucks and SUVs Author Sparky Posted on August 12, 2011 June 10, 2016 Categories Actuators & Vent Control Tags Actuators, Cadillac, Chevrolet and GMC Trucks, Recalibration. Air works fine out of passenger side but blows hot air out of Driver side blend door actuator needs to be replaced. I own a 2003 gmc envoy. No matter what position the fan or temperature was on didn't matter. I replaced blower motor & it worked okay for a very short time. Check the resistance in the blower motor circuit with a 12-volt test light and compare the results to the proper voltage specified in the owner's manual. Yesterday I drove home for the holidays and I noticed about half way through the trip that my 2001 yukon was blowing continous hot air out of the vents. The mode actuator controls the position from which air will blow (e. Hey guys & gals i have a 2003 gmc envoy XL with AC issues…. It starts off blowing cold cold air but then the compressor clutch disengages and the system blows warm humid air. The position of the doors determines where air flows and the temperature. This has nothing to do with being in a super-cold environment (today it's in the 80s Fahrenheit). When I turn on the air conditioning, it runs cold for about 20-30 minutes then starts blowing hot air. Time to get that A/C going! You turn the key, the fan begins to blow … and what’s this? The air feels warm. 2002 GMC Envoy Owner's Manual GMC, the GMC Emblem and the name ENVOY are registered learn about some things you should not do with air bags and safety belts. 0 straight six runs at 210 degrees or a little over that. CarComplaints. Chevrolet Silverado 1999-2006: Why Do My Vents Blow Only Hot or Cold Air? The Chevy Silverado climate control system uses several different components that come together to either cool down or heat up the cabin. My wife had been in the habit of trading her cars every 18 months before she got the Envoy. 2002 GMC Envoy Owner's Manual GMC, the GMC Emblem and the name ENVOY are registered learn about some things you should not do with air bags and safety belts. could use new suspension. Search 2005 GMC Envoy Recall Notices by Envoy. You get in the car. When the AC works it blows cold air. 2003 GMC Envoy Electrical Problems. I've not had it diagnosed but I turn. See all problems of the 2004 GMC Envoy. To see how frequently GMC Envoy problems occur, check out our car reliability stats. If cold air fails to blow through the vents in a GMC Envoy, a bad blower motor resistor may be to blame. Replaced the OEM actuator with this one and now it works perfectly. For quick fix that worked for me is the actuator must be sticking cause I removed glove compartment door n just letting it hang to floor and actuator is to the left inside dash behind glove compartment and while switching from hot to cold I was tapping it with a hammer and it started working and still is, hopefully helps few people for. I have a 2002 GMC Envoy , A/C blows cold and then sometimes it just starts to blow hot. It's going to the service dept this week. 2002 gmc envoy dash vents on driver side blows hot air. dual climate controls have one for each side. I am having a heat issue with my 2002 silverado. The mechanics say the entire control panel needs to be replaced. Even when I selected the recirculate button and a/c it still would blow hot air. 2002 gmc envoy dash vents on driver side blows hot air. Your Gmc Envoy can take you there, where every October you can experience Balloon Fiesta, the largest hot air balloon events in the world. The position of the doors determines where air flows and the temperature. Average failure mileage is 100,400 miles. And, being rather warm in the car, I lowered the temp to 60 degrees, and while it was blowing out somewhat cool air, it was NO WHERE close to being cold air - certainly not supposedly 60 degrees. Hot air is condensed into liquid which is. Check the resistance in the blower motor circuit with a 12-volt test light and compare the results to the proper voltage specified in the owner's manual. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. It runs but cant drive so would need to be towed. Five months later the air conditioner works again. have a brake question. GMC Envoy Bad mode door actuator - 61 reports. The most important part in a vehicle’s air conditioning system is the condenser. The problem is that the air conditioning drops out on me. I replaced control unit,but it did not help. The mode actuator controls the position from which air will blow (e. As soon as we would get out moving it would Quit blowing cold air. Leather and power everything after market wheels, tires st 80%. 2002 GMC Envoy. A/C is blowing hot air. A/C is controls are set to max air and max cold on the temp control. We refer to the different air flow positions as modes. My 2006 Ody is having air conditioning issues. How did that happen? It was blowing cold just yesterday! First, don’t panic. Was blowing cold air on driver side and hot air on passenger side. I have been having a problem of Hot Air blowing out of the passenger front vents when the A/C is turned on. Thermostat; It may sound obvious, but the first thing you should check is the thermostat. GMC Envoy 2003 Engine Shake and Rough Idle. Not to mention it was anywhere from 30 to 60 dollars cheaper than parts stores and dealerships. ” If this is the case, it’s easy to fix on your own. CarComplaints. The problem I have is that when you turn the ac on the cool air only comes out the 2 vents on the passenger side. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. This will probably be our last gm car. HVAC actuator replacement on a 2004 GMC envoy SLT with Automatic climate control. Engine And Engine Cooling Problem on the 2003 GMC ENVOY. While both driver & passenger side temps & fan speed are set the same, the drivers side blows hot air & the passenger side blows cold. I replaced blower motor & it worked okay for a very short time. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. Took in to dealer for repair. 2003 GMC Envoy Electrical Problems. Home Forums > Chevy SUV & Crossover Tech Forums > Chevy Trailblazer Forum (GMC Envoy) > 2003 Trailblazer A/C blowing hot air Discussion in ' Chevy Trailblazer Forum (GMC Envoy) ' started by ryless01 , Jul 27, 2010. HVAC Actuator Recalibration Procedure For GM Trucks and SUVs Author Sparky Posted on August 12, 2011 June 10, 2016 Categories Actuators & Vent Control Tags Actuators, Cadillac, Chevrolet and GMC Trucks, Recalibration. DEAR CAR TALK: I have a 2009 GMC Envoy with less than 40,000 miles on it. 7 litre convertible, about a week ago, it stopped blowing hot air through vents, the temp gauge reads normal, coolant is full, bled system just to be sure… was told it was the a/c control head (w/o auto temp), replaced that, still nothing but cold air. Find detailed gas mileage information, insurance estimates, and. If I set the temp to 60 it blows cold air and both sides feel the same, I didn't check the actual temp of each vent though. If the flapper are not working the air is blowing in from the heater core and you will get hot air. If your Oil Furnace is Still Blowing Cold Air, Check Your Flame Sensor. the A/C low pressure lines our cold, but not cold air. ? that and then it went to blowing hot air all the time i had to replace to. Breakers and fuses are designed to trip or blow when too much voltage is sent through the line. But when it’s on 1/2/ or 3 I hear the motor working, but there is no air blowing. Bought this to replace the temp blend door actuator on a 2004 envoy. If your heater starts by throwing warm air out of your registers, but you are soon left with a heater blowing cold air, then I would suspect that your flame sensor needs to be cleaned. When heater is on cold air comes out of drivers side vents passenger vents have warm air copming out. 2002-2003 GMC Envoy, Envoy XL 2003 GMC Sierra, Yukon, Yukon XL 2002-2003 Oldsmobile Bravada 2003 HUMMER H2 Condition. I replaced control unit,but it did not help. The front driver fender is bent from some1 kicking it. Average failure mileage is 100,400 miles. Any ideas? When it stops it blows outside air,which is the hot air from outside.