2006 chevy trailblazer ac vents not working - Chevy TrailBlazer a/c vents have hot and cold air at same time due to actuator after battery replacement (they need to be reset)

 
2006 - 2009 TrailBlazer SS Tech. 06-09 SS Appearance. Exterior. Blacked out air vents. Jump to Latest Follow 3K views 7 .... How to unpause device on xfinity without app

the roadie. 26436 posts · Joined 2005. #2 · Jun 23, 2009. It might be that the power supply for the DIC display went bad, but the instrument cluster is an integrated unit, except for changing simple things like the stepper motors for the gauges. Find a repair vendor on Ebay for a discount fix.Jun 18, 2009 · Chevrolet Trailblazer LT: The vent (a/c) system will only blow. The vent (a/c) system will only blow on the windshield and feet in my 2006 TrailBlazer LT. It is an electronic button I press to change where I want it to blow. It shows it changing on the digital dis … read more. 2006 Rainier HVAC - No air from front vents. I own a 2006 Buick Rainier CXL with the 5.3L V8. Had an intermittent issue with no A/C air coming from the front vents, only side and floor. Used to fix it by turning off the HVAC, waiting a few seconds and turning on AUTO. Now it's failed completely - no air at all.Tests/Procedures: 1. Re-calibrate the actuators. 2. Remove the Heating, Ventilation and Air Conditioning (HVAC) system B fuse #36 for at least 10 seconds. 3. Reinstall the fuse and turn the key on and wait 40 seconds. Potential Causes: Heating Ventilation Air Conditioner (HVAC) Calibration.The most common causes for AC blowing hot air in Chevy TrailBlazer 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. Less common causes are clogged expansion valve or …How to Replace Heater AC Control Controls on Chevrolet Equinox Chevy. Check Details. Heats not working in my 2011 Chevy equinox I tried replacing the. Check Details. 2011 Equinox has no heat, I replaced the actuator about a few months. Check Details. Im looking for procedure to change heater core in 2006 Chevy equinoxElectromagnetic induction occurs when an electrical wire passes through a changing magnetic field. Generators use electromagnetic induction to convert mechanical energy into electr...4.Remove the left side air temperature actuator. Installation Procedure 1.Install the left side air temperature actuator (1). Notice: Refer to Fastener Notice. 2.Install the left side air temperature actuator retaining screws. Tighten the screws to 1.9 N.m (17 lb in). 3.Connect the electrical connector to the left side air temperature actuator.I have a 2004 Trailblazer...the rear air vents are not blowing at all. The front air vents are blowing fine. ... when i turn on my chevy trailblazer 2002 my front vents work so well but after a while they stop working they are still running but no air is coming out the front vents at all back ... 2006 chevy trailblazer: air duct dont flow out ...heater blows cold air A/C stopped working heater core engine complaint electrical issue heater complaint transmission complaint paint defect Trailblazer recall. Maximize. The 2004 Chevrolet ...A dealer's tech tool or a high end scan tool might be able to read the ambient light sensor and tell you for sure. If you have a meter, you can pull it out of the dash and measure voltages. Its black wire should be at ground. The white wire is the sensor signal, and should have a voltage that varies with light intensity.5423 posts · Joined 2007. #2 · Jan 19, 2010. The vacuum operated blend door is not working. Look underhood for a loose vacuum hose just hanging there, or cracked, ripped, melted, etc.. Start at the reservoir ball and go from there. Trace it to the manifold and to the firewall. It could also be behind the dash too.1. AC Blowing No Air at All. Usually the culprit. If your Chevy Avalanche has no air moving through the climate system at all, that's a lot easier to diagnose than the air that is blowing not being cool enough. When there's no air flowing through the truck's cabin, a bad blower motor usually causes this scenario.Heater Fan Not Working Properly 5. Heater Connector Glowed Red Hot 4. Smoke Coming Out Of Vents While Ac On With Plastic Smell 3. Heater Fan Won't Stop Running When Key (Switch) Is Off 2. A/C ...I have a 2006 Chevy Trailblazer and the AC is not working consistently. It comes on and off on short trips but on longer trips it will cut out completely and just blow warm air. I have checked the coolant level (fine), changed the AC relay in the fuse box, and installed a new belt tensioner.The most common causes for AC fan blower motor not working in Chevy Uplander are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1.Upgrade your 2006 Chevrolet TrailBlazer with top-notch accessories from etrailer.com. Find in-depth ... Intended for vehicles with or without 2nd row center hump air vents. More Information > Hopkins Semi-Custom Auto Floor ... sporting events, and work under your vehicle. Thermoplastic rubber underside helps keep the cover in place. ...It sounds like the HVAC system lost its calibration. Please remove the HVAC1 and HVAC8 fuses in the rear fuse block below the left rear seat. And turn the key on for two minutes, then turn the key off and replace the fuses then start the car and let sit for two more minutes and you should be all set. Let me know what happens.Some 2005 & 2006 GM pickups & trailblazers had a software issue with their climate control systems in which the HVAC door(s) which regulate each vent section, (including adequate heating and air conditioning) wouldn't operate as selected by the control knob. Originally this was taken care of under a repair bulletin put out by GM.Mar 17, 2015 · Tell him its like the old resistor, but not digital. It gets power and ground, and the smaller middle wire gets a lower voltage ground signal. IF those are in place, then test the 2 wires to the blower motor with an old school test light. No power means the blower motor controller. Power means the blower motor is bad. The 2006 Chevrolet Trailblazer has 10 problems reported for heater / ac not working on all settings. Average repair cost is $160 at 70,800 miles. ... Pain in butter heat coming out of face vent ... Today it did it again, I pulled the blower motor out of the dash and it was working, but about 6 inches from the blower motor towards the driver side the duct work was cold-condensation and it seems that blend door is not working properly. I took out the blend door module and it moves when changing settings on the AC-heat head unit.The vents only direct the air - the fan blows the air. Try looking for or having a mechanic look for a blown fuse this is the most common problem. Thanks and best of luck with it. 38 Answers. Posted on Aug 12, 2009. SOURCE: I have a 2004 chevy trailblazer. My problem is the. There maybe some thing wrong with the air direction door.Replacing the Driver Side Blend Door Actuator (ACDELCO 1572972) and reseting the blend doors for the front A/C system. My A/C was stuck on just hot but this ...The roof vents on my 2002 Envoy XL SLT are not working this spring. Air only comes from the rear floor vents regardless of the settings on the main control panel (with the rear fan switch on 1,2,or 3) or on the rear panel (digital panel - SLT) with the rear fan switch set on "R". I'm not certain how the air flapper is designed, but for whatever ...SOURCE: Problem with air not coming out of vents. Check for a vacum leak from the engine to the a/c.The color of the hose is black. Also check if the heater control valve hose is unplugged. If you have vacuum the it sounds like the door for the vent/floor/defrost is broken. SOURCE: My AC air registers only have air coming out of the defrost ducts.2006 Trailblazer air conditioner intermittently doesn't cool. ... The air conditioner doesn't work. It is not low on freon; no fuses are blown; it is not the relay. ... A 2007 TRAILBLAZER AND HAS 18000 MILES ON IT AND THE AC WILL NOT BLOW AIR BELOW 55 DEGREES WITH A TEMP GUAGE AT THE VENTS. I took it in to the chevy shop and they told me it ...2003 Chevy Trailblazer LT EXT 1971 Chevy Chevelle ... I encountered a problem with the center dash vents not working after I disconnected the battery. I had to replace a cooked actuator. ... BUT on the EXT the transmission cooling line and air conditioning lines are in the way and the bottom bolt is a bitch to remove and re-install. Not to ...3. Remove the instrument cluster trim bezel nuts (2). 4. Lower the steering column. 5. Move the shift lever to the first gear position. 6. Pull on the instrument panel cluster (IPC) trim plate bezel (1) in order to disengage the retainers. Pull in the following sequence in order to disengage the retainers.The most common causes for AC fan blower motor not working in Chevy Cobalt are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1.The Mode Door Actuator is located behind the driver's side/center of the dash. You will access the actuator from under the driver's side dash, working upwards on an angle. If you have adjustable pedals, the assembly will need to be removed first to gain access. If no adjustable pedals, remove the driver's side lower insulator panel to gain access.Sounds like a problem with the front blower motor. there is a blower motor resistor for the front blower motor that controls the speed of the blower and tends to go bad or fry out the blower motor. thats the most likely scenerio since you stated the control head was lighting up and responded to button changes. Posted on Jan 29, 2009.In this video I try to figure out why my rear air won't work on my 2003 Chevy Trailblazer EXT. The extended Trailblazer has rear air conditioning, and there ...Chevrolet Trailblazer LT: The vent (a/c) system will only blow. The vent (a/c) system will only blow on the windshield and feet in my 2006 TrailBlazer LT. It is an electronic button I press to change where I want it to blow. It shows it changing on the digital dis … read more.Jun 25, 2013 · OK, unless you want to guess at what is wrong a 12 volt test light is the best way to find the problem. It is likely to be the blower control assembly which is on the housing next to the blower motor but testing is the best way. You have to remove the knee bolster for access. If this is the actuator you replaced, then you need to unplug the actuator and just plug in the old one while moving the mode selector with the vehicle running to see if the actuator will move to different positions. If it does, then the evaporator case mode door is stuck.Ac not working at all I had paid someone to change out my factory stereo in my 07 chevrolet trailblazer. When i left i tried using my a/c and nothing was blowing out of the vents at the top. I've tried getting a new a/c control module, replaced it and it still didn't work at all. I disconnected the battery along with the hvac fuses for 30 seconds.1992 2500 chevrolet pickup ac not blowing through vents will sometimes then goes to very little flow through the vents and sounds like hurricane under dash but like i said very little flow coming out ... Why are the top vents on my 2004 chevy trailblazer not working. The dealer just replaced the instrument cluster and now the top vents are not ...3. If the voltage is low at C201 check the voltage at pin "G" of the ignition switch. Potential Causes: Ignition Switch. 2006 Chevrolet Trailblazer LS 4.2L, Vin S, Eng Cfg L6. Customer Concern: ABS, Low track light comes on intermittently. The heater blower motor quits running, 4WD not working.Does anybody have any idea why the top vents on my 2002 Chevy Trailblazer will not blow AC or heater I was told to go to the dealership to get it fixed but that's kind of pricey now the vents by my feet will blow in the rear passengers ac will blow but not the top vents i dont know why the defroster works too please let me know thanksIt's not unusual for the connector/wire to the fan to burn up, or for the connector to the resistor pack (controls fan speed) to burn up, or for the resistor pack to fail. But, you need to remove/examine/test to see where the problem is. 2004 Sierra 3500 dually, 6.0L extended cab, cab&chassis flatbed, upgraded to 4wd.Electromagnetic induction occurs when an electrical wire passes through a changing magnetic field. Generators use electromagnetic induction to convert mechanical energy into electr...the air blower won't switch from defrost to floor. my 2003 gmc envoy blower wont switch from defrost to the floor and it will switch to the front vents just not the floor is there a way to calibrate the actuators & the heat and a/c works. Pull the HVAC fuses. When re-installed, it should reset.After inspecting the belt, there can only be two things left that could be happening: 1. The clutch is not getting a signal to turn on. This indicates some form of wiring problem. -or-. 2. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. 2.CarComplaints.com Notes: The Trailblazer emerged from an "upscale trim line" of the Blazer, but there's nothing upscale about its transmission problems or its wonky, unpredictable headlights. 6.0 ...6513 posts · Joined 2006. #2 · Jun 3, 2008. There is a mode actuator in the rear to direct air flow (we sometimes call it a mode door). It's a flap that responds to the switch and changes air flow. It's in the rear (behind that panel the floor outlet is in), but I don't know where. But in the try simple things first thought, did u look at the ...2006 TRailblazer LT Mode Actuator ... Changed battery now top vents don't blow air. Seems like mine just suffered the same fate. Thanks to this thread, tracking down the correct part number was pretty easy. I ordered mine from amazon. $44.42 + Free shipping. ... 2006 chevy trailblazer_ss_3ss Joined May 30, 2006 · 30 Posts ...19,053 POSTS. Place heater fan at hi. disconnect blower motor and check for ground and battery volts at the disconnected wire if you have both remove and replace blower motor. if not suspect blower motor speed resister. Blower Motor Resistor Assembly Located Below right side of dash, near blower motor.Clear all DTCs. Place the ignition switch to the OFF position. Install the HVAC actuator. Connect all previously disconnected components. Remove the HVAC B fuse for a minimum of 10 seconds. Install the HVAC B fuse. Start the vehicle. Wait 40 seconds for the HVAC control module to self-calibrate.1 answer. The fan will not kick on...on my 2006 Trailblazer. Fuses look good along with the relays. The compressor seems to be working fine. Can't get air to flow through the vents. The list of things that could be bad; blower motor, blower motor resistor pack (control module), resistor pack wire harness, fan selector switch and fuses.cullis.william Discussion starter. 2 posts · Joined 2023. #3 · Jul 31, 2023. There is a 10amp fuse labeled AC under the hood. Some of the Youtube videos tell you to pull that fuse. I probably have a bad blend door driver side. Cold air passenger side, neutral air driver side. Trying on this post to confirm doing reset procedure correctly.The drivers side vents blow hot air and the passenger side vents blow very cold. They tried the reset process a couple of times but didn't work. I don't want to get involved with removing the dash the way my lucks been running. ... A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Come join the discussion ...Engine Compartment Fuse Box Diagram. The engine compartment fuse block is located in the engine compartment, on the passenger's side of the vehicle. Fuse box diagram, location of fuses and relays Chevrolet TrailBlazer, GMC Envoy, Isuzu Ascender, Buick Rainier, Oldsmobile Bravada, Saab 9-7X (2002-2009).4.2L. 6 CYL. 2WD. AUTOMATIC. 133,484 MILES. Recently my front vents stopped working on my vehicle. I've tried to re-calibrate by taking out the fuse, waiting a couple minutes, putting the fuse back in, turning the car to run, letting it go through its motions, but that didn't work. The air blows cold, but it is only coming out at the feet, side ...Engine Compartment Fuse Box Diagram. The engine compartment fuse block is located in the engine compartment, on the passenger's side of the vehicle. Fuse box diagram, location of fuses and relays Chevrolet TrailBlazer, GMC Envoy, Isuzu Ascender, Buick Rainier, Oldsmobile Bravada, Saab 9-7X (2002-2009).You have to take the bottom panel from underneath the glove box out (be careful not to break the wire clip that holds the wires in place on that panel). Once you take the panel loose look in the back. You will see the blower motor. Behind the blower motor is the card. You will need a 9/32 for the panel and a 7/32 for the card. It is called the mode door actuator. It controls air flow out the vents. Roy. 1. Remove the floor air outlet duct extension (1) from the floor duct (2). 2. Remove the center console. 3. Remove the screws from the center console duct. SOURCE: front fents not working on chevy 2004 trailblazer other vents ok yes, if you vent is not working when adjusting direction control, the problems is behind the ac control unit, common problems with GM. you going to have to tear into the dash and see what linkage broken or came off, not hard to do on blazer if have some mechanical incline background and some tools, it not hard but time ...Maximize. The 2005 Chevrolet Trailblazer has 24 problems reported for blower fan doesn't work on all settings. Average repair cost is $270 at 78,650 miles. (Page 1 of 2)RepairPal will help you figure out whether it's your AC Refrigerant Leak, Climate Control Electrical Issue, AC Compressor, or something else. 2002 Chevrolet Trailblazer AC Is Not Working CloseREMOVAL PROCEDURE. 1. Remove the rear HVAC module assembly. 2. Disconnect the electrical connector from the blower motor control processor-auxiliary (3). 3. Remove the screws from the blower motor control processor-auxiliary (3). 4. Remove the blower motor control processor-auxiliary (3).1. Check the Fuse. If none of the brake lights are working, we are going to follow the circuit from the fuse box back to the brake pedal. At some point the power is not getting from point A to point B. We just have to find where that is. Please note that tail lights can work even if the brake lights are burned out.Try pulling fuse #36 in the rear fuse block for 30 seconds. Then turn on the ignition, but you don't even need to start the engine. Listen for all the actuators to move and the blower to try all speeds. And don't touch any controls until it's done.Slide the front floor console back to clear the pins from the instrument panel assembly. Instrument Panel Tie Bar Brace (2) - Remove - Instrument Panel Tie Bar Brace Replacement. Disconnect the electrical connectors. With the aid of an assistant, lift and remove the front floor console assembly (1) from the vehicle.I am working on a 2003 Chevy Trailblazer, and the vents continually blow out warm air and when you turn the air to blow on the floor or even defrost it keeps blowing out the dash vents and does not bl ... On my 2006 Trailblazer LT, I can not get airflow out (hot or cold) of the four chest vents with vents open. ... The heating and air ...Unlike what I have read on this forum, the REAR AC in my Trailblazer (non-ext model) is NOT installed in in the roof, instead it is installed between the front seats behind the center console. In my vehicle there are 2 small vents located at the rear of the center console pointing backwards towards the rear seats.Step-by-step guide on how to install / remove / replace middle dashboard air vents on Chevy Tahoe ( 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | P...not sure but somehow my daughter says i have no air, no heat, no blower motor in the back passenger area. this is my daughters car and i am the official Mr. Fix it please . yes i have checked a 10 and a 30 amp fuse which shows it is an a/c fuse. i am not finding a rear a/c seperate fuse location. thank you, Rocket ManYou have to stop on the side of the road, let the car cool down, and then continue. It causes a delay of 5-10 minutes or (alternatively) driving while being broiled. The 2006 Chevrolet Silverado ...It's not unusual for the connector/wire to the fan to burn up, or for the connector to the resistor pack (controls fan speed) to burn up, or for the resistor pack to fail. But, you need to remove/examine/test to see where the problem is. 2004 Sierra 3500 dually, 6.0L extended cab, cab&chassis flatbed, upgraded to 4wd.Step 4: Turn the Air Door Pivot. Before installing the new actuator it's a good idea to manually turn the blend door in both directions to ensure it is not stuck which will cause the new actuator to fail. Grasp the door pivot and move it back and forth to its full travel, it should move freely. If you cannot move the blend door an obstruction ...In this video I try to figure out why my rear air won't work on my 2003 Chevy Trailblazer EXT. The extended Trailblazer has rear air conditioning, and there ...G. GoodHomer Discussion starter. 3 posts · Joined 2010. #1 · Aug 22, 2013. There's no/little air coming from the front dash vents on my wife's 2011 Acadia regardless of how the system is set. After doing some research, I've tried resetting the HVAC system by temporarily pulling the fuse. No effect.Try this. Remove the fuse for the AC system under the hood in the fuse box. Leave it out for five minutes. Then reinstall. Turn the key to the on position and wait one minute. That is the calibration for the actuators. See if that fixes it. If not get back to us and we will see about the actuator for you. Roy.AC vent actuator (which one) ... Wow, I'm stupid.... I re-read my first post and what I meant to say was my DEFROST and FLOOR vents work.... My dash vents do NOT work. Save Share. ... A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting ...The most common causes for AC blowing hot air in Chevy TrailBlazer 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. Less common causes are clogged expansion valve or orifice tube ...air duct dont flow out of vents hvac mode acutuator how to remove from a 2006 chevy trailblazer and replace new one. Answered in 5 minutes by: Chevy Mechanic: JHoop. JHoop.If the blower motor stops working due to a fault, the air will not flow out of the vents when you switch on the AC in your Equinox. The most common causes for AC fan blower motor not working in Chevy Equinox are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken ...2008 chevy trailblazer AUTOMATIC TRANSMISSION 4.2L 4X4 ID TAD 495904 will this work on 2006 trailblazer.and whats needed to make work ... 2006 chevy Trailblazer 4.2L A/C compressor works but no blower.Control head display works and appears to activate blower with bar display but no air out of vents.Does this use a blower resistor block ...The problem: I have a 2006 Trailblazer EXT with manual HVAC controls. The rear HVAC temperature, vent mode, and blower controls stopped working completely. The rear HVAC can be operated using the front controls, but sometimes the rear vents will not change positions when I move the vent switch, and the rear blower acts really strange.If you’re looking for a simple way to fight off funky odors in your home, all you need is some car vent air freshener sticks. If you’re looking for a simple way to fight off funky ...Hi ok i was having a problem whit this 2004 trailblazer it all stared when i disconected the battery and i putted back on Wiht ac on the 2 vents on passing...Climate Control Not Working. I have an 02 LT with the digital climate control. The unit will not power on at all!:hissy: I had already checked fuses/relays and all wiring and it is all fine.:thumbsup: A friend of mine owns a used car dealer and let me test my unit from one of the TB's he had in stock. It worked so I know it's the unit.522. 34K views 3 years ago #diy #thedaninator. In this video I try to figure out why my rear air won't work on my 2003 Chevy Trailblazer EXT. The extended …HVAC actuators for 03 Chevy Trailblazer, blend door, hot to cold, floor to defrost, floor to ventsThis is a common problem on the Trailblazer. This is due to failure of the mode actuator. To fix the problem, the mode actuator will need to be replaced. It is located on the left side of the heater case and can be accessed from under the drivers side of the dash. Experience: ASE Master Certification.I have a 2002 Trailblazer EXT. The four overhead rear A/C and heating vents are not functioning. Using either the front controls or the rear console controls, you can switch the mode, but air only comes out of the bottom vents in the third row seats. Is there a module to direct the flow of air to either or both the top and bottom vents?Is your rear AC not getting hot or cold and making clicking noises? Are there issues with switching the direction the air blows? You may need to replace your...Is your rear AC not getting hot or cold and making clicking noises? Are there issues with switching the direction the air blows? You may need to replace your...

Hey y'all. So I have a 2004 Chevy trailblazer LT. So recently the front vents have stopped blowing any air. This includes the defroster and the footwell blowers. I have checked the fuses to all the AC parts and they all are perfect and I can hear the actuators for where the air gets directed to run without any stress when I change modes on the AC.. Lake norman live camera

2006 chevy trailblazer ac vents not working

Hi ok i was having a problem whit this 2004 trailblazer it all stared when i disconected the battery and i putted back on Wiht ac on the 2 vents on passing...My 2004 Chevy Trailblazer HVAC system is working but not switching between upper, lower and defrost vents. The battery - Answered by a verified Chevy Mechanic ... 2006 Silverado with automatic climate control and air only blows out the upper vent. ... The front vents do not blow air, but air does come out of defroster vents and the floor vents. ...The 2006 Chevrolet Trailblazer has 10 problems reported for heater / ac not working on all settings. Average repair cost is $160 at 70,800 miles. ... Pain in butter heat coming out of face vent ...I have a 2004 Chevy Trailblazer. The fan will not work on setting 5. Works on 1-4 though. ... Envoy XL, Sierra, Yukon, Yukon Denali, Yukon XL 2007 GMC Sierra (Classic) Built Prior to September 1, 2006 . with HVAC System AC Front, Manual Temp Control (RPO CJ3) or Heater Only (RPO C42) ... i have a 2004 chevy 2500hd duramax with ac on front vent ...Remove the HVAC B fuse (in the fuse box under the rear seat) for a minimum of 10 seconds. Install the HVAC B fuse. Start the vehicle. Wait 40 seconds for the HVAC control module to self-calibrate. Important: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating.The heater / ac control only works with one or two desired settings.defrost will not work at all (2006 chevy trailblazer) The actuator motor that controls the defrost,to floor,to vent ,has gone out,this will be a job to take to the shop,the dash will have to be pulled out toward the seats to replace the actuator motor.Advertisement Most land volcanoes have the same basic structure, but volcano shape and size varies considerably. There are several elements that these different volcano types have ...Hi in this video I will show you how to confirm the fix on you vent no blowing airFrom the driver's seat, turn the vehicle to ON (but do not start it) - I immediately hit the "OFF" button on my HVAC to make sure it does not try to come on. If …The most common causes for AC blowing hot air in Chevy TrailBlazer 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. Less common causes are clogged expansion valve or orifice tube ...the ltz use electrical motors to control the mix blend doors with automatic air control. the motors can strip the plastic gears and the doors will not move which happened to mine it was still under warranty so it was changed at the dealer they had to remove the dash to get to it because it was on the bottom there is more than one motor so you will have to get it checked to find out which one ...Apr 16, 2012 · This is a common problem on the Trailblazer. This is due to failure of the mode actuator. To fix the problem, the mode actuator will need to be replaced. It is located on the left side of the heater case and can be accessed from under the drivers side of the dash. Experience: ASE Master Certification. Has your 1.5-ton air conditioner been underperforming lately? Are you experiencing reduced cooling efficiency or warm air blowing out of your AC vents? These are common signs that ....

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