2006 chevy trailblazer ac vents not working - 26436 posts · Joined 2005. #2 · Nov 29, 2009. The fuse you checked, if it was labeled BACKUP, was for the trailer backup circuit, not the vehicle's lamps. One of the evil GM design team's little "gifts" to confuse the owners. :hissy: What you should check (with a meter if you have it, not by eye) is labeled TBC5, rear fuse block #32, 10A.

 
i have a 2006 chevy trailblazer that wont blow air form the upper vents, blows from defrost, and floor,,,,i was told it is a faulty blend door actuator or a mode door actuator. but which is it im comf ... The dealer just replaced the instrument cluster and now the top vents are not working.. Oregon unemployment gov

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.2003 CHEVROLET TRAILBLAZER. 6 CYL. 4WD. AUTOMATIC. 12,000 MILES. Air is not blowing out of my front dash vents regardless of whether the a/c is on or off. The back vents in the middle row of the car work fine. And if any air does decide to come on, it is barely coming out even if you have the fan set on full blast. Help, please!Step 2 – Test the blower resistor. It may be burned out. You can do this by bypassing the resistor with a jumper wire. It’s pretty easy to do; although, it should be noted that you’ll want to use a wire with a small enough diameter, so that the resistor’s female metal connector terminals aren’t damaged.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 ...Alternating current generators, typically referred to as AC generators, generally work on the same principle as direct current generators.The basic function of a generator is to co...Jul 2, 2019 · From 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 you have everything off (including the radio) you will likely hear the blend doors cycling to their limits. How to Fix. It is possible to locate the fuse that blows the power to the blower motor from the owner’s manual or from the fuse box cover. If a fuse blows, use a …A/C vent hot air out of one or more vents how to repair1. Strange Sounds. As the blend door actuator fails, you could hear a variety of noises. When first starting the climate control system, you may hear knocking noises. There could also be a clicking sound coming from the dashboard area. These sounds could be faint or loud, and they can be repetitive or constant.For a while now (over a year) my Envoy's AC recirculation button has been on the fritz. Some days it turns on and most of the time it does not. Also, the EXT temp shows as 50 degrees F when in fact it's been 75-80 out. This has me wondering if I need to change the Climate Control unit or if it's just a fuse or something.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. 1. Low coolant or air in the cooling system. Low coolant level or air in the cooling ...I cycled through auto and manual, and the defrost/AC/heat vents, but could not get it to blow air through the vents. All else seems to be OK, and very rarely, it will blow air through the vents, but not all the time, and not at the level the system says it is (ie. if showing "high", it will blow "low"; and that's if it's blowing at all ...If you’re like most car owners, you rely on your vehicle’s air conditioning system to keep you cool and comfortable during hot summer days. However, when your car AC starts blowing...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 ...i have a 2006 chevy trailblazer that wont blow air form the upper vents, blows from defrost, and floor,,,,i was told it is a faulty blend door actuator or a mode door actuator. but which is it im comf ... The dealer just replaced the instrument cluster and now the top vents are not working.GM Tech (Cam) : The door actuator that sounds to be faulty is on the drivers side of the heater case. GM Tech (Cam) : If you take the knee bolster off and the heater duct you can get at it. Customer: well the air wont blow air from upper vents ,,is a trailblazer lt or ls not sure ,wife took it, 2006. GM Tech (Cam) :Jan 10, 2014 · Maybe it just needs to be recalibrated. Go to the rear fuse box and pull the HVAC-B fuse for about 10 seconds and put it back in. Then turn the key to RUN but don't start and don't touch anything on the HVAC until it has finished recalibrating the actuators. my dash vents are not blowing any air out. get air from the defroster vents and the lower ones but not from the - Chevrolet 2006 Trailblazer question. Search Fixya. Browse Categories ... the ac blend door is out of adjustment or the the actuator is not working look behind the glove box and watch the arm move. Posted on Jul 24, 2009.Several factors can impede the proper functioning of the air conditioning system in your Chevy Silverado 1500. These include a dirty cabin air filter, refrigerant leaks, a dirty or clogged condenser, a dirty or clogged evaporator, a malfunctioning blower motor, a defective compressor, a faulty blend door actuator, or any electrical system faults.Chevrolet SUV 2003- the air conditioner is blowing cool air but not thru the front vents. The cool air is only coming out in the vents below (feet area) and the defrost vents. What is causing the air … read moreThe most common causes for AC fan blower motor not working in Chevy TrailBlazer 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.Replace the battery. If the button cell battery in the key fob of TrailBlazer is replaced incorrectly or a battery is unsuitable, it can damage the vehicle key. Only replace drained batteries with new batteries in the same voltage, size, and specification. Make sure the battery is facing in the right direction when inserting it.A/c not working Clutch on compressor isn't engaging. ... AC worked fine when parked, I did not open the system up doing the motor swap. 06 RPM lvl 7 Trans 300 stall PCM V3 cam XS headers 33lb injectors 160K miles. Save Share. Like. nojokes09 Discussion starter ... Chevy Trailblazer SS Forum. 2M posts 30.8K membersEven the most level-headed among us deal with anger and frustration at some point. A common reaction? Venting. We've all done it. But what's the best way to handle being on the rec...1. Faulty Thermostat. The thermostat in your air conditioning system is responsible for regulating the temperature and controlling the cooling process. When the thermostat malfunctions, it can lead to problems with cold air production. Let's delve into the causes, symptoms, and solutions for a faulty thermostat. a.Once the leak has been found, this must be closed again by replacing the respective component. 4. Dirty evaporator. Dirty evaporator can also be the reason for AC problems on your Chevy Colorado. Cabin air filter captures most of the dirt or other airborne particles, but some escape and fall on to the evaporator.The most common causes for AC fan blower motor not working in Chevy Tahoe 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. 1.2006 CHEVROLET TRAILBLAZER. Why would air not blow through the vents in the dash, but will blow through the defrost and floor vent? Tuesday, July 5th, 2011 AT 11:20 AM. 14 Replies. HMAC300. …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.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.Air Conditioning not working? ... 212 posts · Joined 2006 Add to quote; Only show this user #1 ... A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, towing capacity, maintenance, and more! ...Less common causes are dirty or sluggish blower motor and faulty mode door actuator. 1. Clogged cabin air filter. Dirty AC filter is the leading cause of weak AC airflow in Chevy TrailBlazer. The pollen filter, also known as the cabin air filter or microfilter, is responsible for filtering the air that the passengers breathe in the cabin.Steps so far: Thought it was perhaps a stuck actuator, so I pulled the fuse and listened to the song of resetting actuators. Still have the same problem. Replaced the blend actuator driver's side (boy, that's a pain..) no affect. Noticed I can turn the thermostat and watch the actuator turn. Pulled the actuator off and manually turned the white ...Check Vehicle Fit. Vapor Canister Vent Valve. 1 Year Limited Warranty. Terminal Gender: Male. Number Of Connectors: 1. Port 1 Outside Diameter (in): 5/8 Inch. Show More. Shop for the best Vapor Canister Vent Valve for your 2006 Chevrolet Trailblazer, and you can place your order online and pick up for free at your local O'Reilly.2005 trailblazer dash vents not working I have a 2005 chev trailblazer I changed out the battery today and the dash - Chevrolet 2003 Blazer question ... When you change air flow direction from defrost ,to floor ,to vent . does air flow change ? Where is the air coming out of ? ... 2006 Chevrolet Blazer. What is the firing order. 2001 Chevrolet ...The fix: Shut off the A/C-Heater and leave it off for about 2 minutes. Restart the A/C with the driver's side on maximum heat and the passenger's side on full cooling. Run it this way for a minute or more. Shut off the A/C-Heater and leave it off for about 2 minutes.If voltage goes to the blower motor, it'll need replacing. If there's no voltage, test the resistor (YouTube). 2. AC System Not Blowing Cold Enough. The most common reason for your Chevy Traverse's AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged).My 2006 Trailblazer vent defrost and heat control stopped working. ... I have a 2003 chevy trailblazer, the dash vents will not produce air flow. ... (2000 Chev S10 4WD) floor vents no longer work for AC or heat. I also notice a slight odor coming out of the vents when my defrost/vents/AC is operational.May 18, 2020 ... Comments32 · 2002 Chevy Trailblazer Blower Motor Fuse, HVAC Fuses · 03 Chevy Trailblazer/HVAC Actuators/ vents not working/defrost to floor/ hot ...Fix Or Replace Mode Actuator Motor. Check manually if the mode actuator is working. If it does not work on the first try, the mode actuator must be faulty, and you have to change it. If the mode actuator works but the air doesn't change, the problem is jammed air. In that case, clean the insides of the mode actuator.16WhiteColly. If fog was coming from the vents, the evaporator core, inside the index dash box must have been froze up. That new 1234 Freon has been causing a lot of this freeze up condition. The previous 134 was not a problem other than it just did not cool as good as the R-12, but was not freezing up like the new 1234.Wait for at least 1 minute. Re-install fuses, start truck and do not touch a/c control head for 2 minutes. Shut off truck, re-start and check for normal operation. 2006 Chevy Trailblazer. Question- I went to turn on the fan switch in my car for the air conditioning; however, nothing happened. I turn on the rear air conditioning and that works fine.Apr 24, 2007 · The new tool is an HVAC Puller, special tool number GE-47676, which was shipped in the Fall of 2004 to all Chevrolet and GMC dealers. It will no longer be necessary to replace the entire Mode Door Cam Assembly when only the Mode Door Actuator requires replacement. Previous to the release of this tool, it was necessary to remove the entire ... 2002 Trailblazer LTZ. Problem: The AC blows fine through the middle and rear seating area vents, but nothing at all through the front front vents/lower vents The defroster does work. When I first start the car I can feel air, for a couple of seconds, blow through the vents and then it stops. The car was dying when idling and messing with the ...2006 Chevy Trailblazer. My A/C controls do not work. Previously, the air was stuck on feet only and woul dnot modes to - Answered by a verified Chevy Mechanic ... trailblazer ss and the a/c heater doesn't blow air to the feet. from the front and rear seat. even when I drive I have air coming threw the vents . ... Why are the top vents on my ...WIRING- DIAGRAMS. AIR CONDITIONING - Chevrolet TrailBlazer 2006 - SYSTEM WIRING DIAGRAMSANTI-LOCK BRAKES - Chevrolet TrailBlazer 2006 - SYSTEM WIRING DIAGRAMSANTI-THEFT - Chevrolet TrailBlazer 2006 - SYSTEM WIRING DIAGRAMSBODY CONTROL MODULES - Chevrolet TrailBlazer 2006 - SYSTEM WIRING DIAGRAMSCOMPUTER DATA LINES - Chevrolet TrailBlazer 2006 ...Nov 22, 2016 · Rodney: My HVAC blows hot and cold but all vents are open except driver and passenger feet vents. I bought a mode actuator but that didn’t solve the problem. I recalibrated the hvac many times via snap on scan tool. Pressing the mode button doesn’t change the vents direction. I have two codes b0159 and b3761. Help … Continue reading "2002 Chevrolet Trailblazer-Air Will Not Blow Out Of ... 2007 Trailblazer LT A/C issues i took my trailblazer to sears to get the oil changed and tires rotated, when i left and got back on the interstate my A/C did not work and im not sure if sears had anything to do with it or not. but i noticed when my wife tried to turn on the rear ac for our son it did not work either. i pulled over made sure she was hitting the correct button an se was but i ...Cigar lighter (power outlet) fuses in the Chevrolet TrailBlazer is the fuse №13 (Cigarette Lighter) in the Underhood Fuse Box and fuses №15 (2002-2003, Auxiliary Power 2), №46 (Auxiliary Power 1) in the Rear Underseat Fuse Box.The most common causes for AC fan blower motor not working in Chevy Suburban 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.Tighten the screws to 1.9 N·m (18 lb in). Install the left hand floor duct. Install the left side sound insulator screws. Recalibrate the mode actuator by disconnecting battery, reconnect battery then start engine, do not touch any a/c controls for 3 minutes while a/c system actuators complete recalibration mode.I have a 2003 chevy trailblazer, the dash vents will not produce air flow. I saw the fix here of removing the fuses and - Answered by a verified Chevy Mechanic ... On my 2006 Trailblazer LT, I can not get airflow out (hot or cold) of the four chest vents with vents open. ... 2003 Chevy Tahoe Z71 - vent control stopped working. Air flow only ...2006 Buick Rainier 83,000 mi, Visitor. Battery was replaced by Sears, only now the Air Conditioning and outside vent air only blows at the bottom and defrost vents on dash and sides but never through the front passenger and rear passenger vents. Fuses were checked at the engine compartment and under the rear seat.Recently I noticed that the A/C is not getting cold and barely cool. The A/C seems to be cooler in the morning when the temperature is not as warm. But once it warms up, the A/C is really no relief. I noticed when I was in the vehicle that the A/C was not working properly and then the "Ambient Air Temperature Sensor reading" in the mirror was ...2007 Trailblazer LT A/C issues i took my trailblazer to sears to get the oil changed and tires rotated, when i left and got back on the interstate my A/C did not work and im not sure if sears had anything to do with it or not. but i noticed when my wife tried to turn on the rear ac for our son it did not work either. i pulled over made sure she was hitting the correct button an se was but i ...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.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. HVAC actuators for 03 Chevy Trailblazer, blend door, hot to cold, floor to defrost, floor to ventsReasons a 2023 Chevrolet Trailblazer AC Isn't Working. 2023 Chevrolet Trailblazer. The most common reasons a 2023 Chevrolet Trailblazer ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. 0 %. 37 % of the time it's the. AC Refrigerant Leak. 0 %. 21 % of the time it's the.Answered by a Fixya Expert. My 2004 trailblazer will only blow out of the defrost vents and the floor vents when you use the heat or A/C. what can cause this problem. My keyless remote wont work either. The gate door wouldn't open one day so my husband had to manually open it. Could both these problems be caused by the same thing.Electromagnetic induction occurs when an electrical wire passes through a changing magnetic field. Generators use electromagnetic induction to convert mechanical energy into electr...2002 Trailblazer blows cold air out of the passenger side does not blow cold air out of the driver side door driver side air is not hot it's cool we flipped doors by hand but still cool not cold. If you have dual air control. It is the drivers side actuator on the plenum. This can be checked with a scanner.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.#1 · Aug 19, 2012. 2002 Trailblazer LTZ. Problem: The AC blows fine through the middle and rear seating area vents, but nothing at all through the front front vents/lower vents …Air conditioning intermittently stops working. I have a 2000 GMC Sierra, 5.3L V8 with 200K miles and the air just started to act up. When I start out in the morning it works fine, but once I start and stop at lights, etc it quits working. If I stop and turn off the engine it starts working again. When driving highway speeds it seems to never quit.Evil SS 2006 Discussion starter. 11408 posts · Joined 2007. #1 · Dec 24, 2009. Before I broke the motor, I noticed that no matter what I did to the controls, the HVAC system was stuck moving air from the defroster and lower heater vents. The dealer diaged it as the mode door actuator, anyone have info on how to get to it in the center console ...Aug 19, 2023 ... In this video I explain the most common problem why car vent is blowing uneven air temperature. If you're experiencing hot air on the driver ...Problem: The AC blows fine through the middle and rear seating area vents, but nothing at all through the front front vents/lower vents The defroster does work. When I first start the car I can feel air, for a couple of seconds, blow through the vents and then it stops.Press the AUTO button. This may be located on the centerstack, within the climate app on your infotainment screen or in both places. Locations vary by vehicle; check your Owner’s Manual. Set your desired temperature. The system is designed to adjust the fan speed, air flow distribution and delivered air temperature to quickly and efficiently ...I've got low air flow coming from my vehicle's dash vents even though the fan is on high. In this video I locate the cause of low or weak air flow from the v...Read the next 20 complaints ». The 2007 Chevrolet Trailblazer has 74 problems reported for fuel gauge not working. Average repair cost is $420 at 56,650 miles. (Page 1 of 4)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.toyomoho. 6419 posts · Joined 2006. #7 · May 24, 2008. Have never done the job, thus just going on the manual. There may be 2 electric servomotors, air inlet and air outlet. Removing the glove compartment, ECU and ECU bracket accesses the air inlet servo. This motor should be held in place by 2 screws.The vent doors are actuated by vacuum. Check under the dash for damaged, broken, or disconnected vacuum hoses. If the engine is on, you may actually hear a hissing sound from a leak. Also, follow the vacuum supply hose from the controler through the firewall to the engine to make sure there are no leaks there. Let me know what you find.A/C vent hot air out of one or more vents how to repairReceived 3 Upvotes on 3 Posts. 2005 Chevy Trailblazer - AC Blower motor just quit. all of a sudden the fan stopped blowing, then turned off, turned off AC and recirulate, came back on for rest of 30 minute ride. after starting truck again, fan didn't move. when I turned fan to OFF, felt trickle of cold air coming through vents.HVAC actuators for 03 Chevy Trailblazer, blend door, hot to cold, floor to defrost, floor to vents2006 chevy trailblazer_lt ... So I purchased the heater/vent flow door actuator, and in taking things apart, realized the actuator for the heater/vent was working, but not for the defroster. I removed it, and manually reached up and set the door to the half open/closed setting , same as the heater door. ... OK, here are my issues. 1)no air from ...The rear fan will not come on unless the HVAC plenum in the rear can be modulated (made hotter or colder). This is part of GM's Astro Ventilation --- left over from 1959 or so --- maybe older. My '05 TB/EXT won't allow the fan to operate unless there's sufficient heat or chilling ability in the rear unit to actually work as the settings call out.Beginning with the year 2002 model, the Chevrolet TrailBlazer holds up to seven passengers. Without the use of a third row seat, a Chevy TrailBlazer can seat five adult passengers ...Heater working but only blows out front vents. No heat to feet or defrost. 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 …AC not blowing through Vents on 2007 Chevy Trailblazer? ... Ac vents not working. There is a blend door acuator which moves when u change your settings. Its a electric motor. ... Sep 27, 2010 • 2006 Chevrolet Trailblazer. 6 helpful. 1 answer. A/C not blowing thru vents just defroster and floor.Apr 20, 2022 ... Rattling noise coming from heat/AC vents in your car or truck? Find blower motor problems easily. 122K views · 2 years ago ...more ...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 ...Vehicle Heating and Air Conditioning Control Assembly Technical Service Bulletins HVAC Control Head - Inoperative, No Display HVAC CONTROL HEAD - INOPERATIVE, NO DISPLAY Number: 93-44-1A Section: 1A Date: NOV. 1992 Corporate Bulletin No.: 261210 ASE No.: A7 Subject: HEATER VENTILATION AIR CONDITIONING (HVAC) CONTROL HEAD INOPERATIVE - NO DISPLAY

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2006 chevy trailblazer ac vents not working

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...Aug 19, 2023 ... In this video I explain the most common problem why car vent is blowing uneven air temperature. If you're experiencing hot air on the driver ...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.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.Tighten the screws to 1.9 N·m (18 lb in). Install the left hand floor duct. Install the left side sound insulator screws. Recalibrate the mode actuator by disconnecting battery, reconnect battery then start engine, do not touch any a/c controls for 3 minutes while a/c system actuators complete recalibration mode.First you need to find out what part number to order; just call the local GM dealer. you will need to give them your VIN; the P/N I used was 89018675 and I got it from parts4chevys. $46.33 which was a lot cheaper than the dealership. Remove lower dash covers. The actuator is located behind the middle portion of the dash; if you lay on the floor ...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 ...Most blend door actuators have a built-in feedback sensor that keeps the climate control apprised of the door's position. The most common symptoms of a bad blend door actuator include abnormal noises, incorrect climate control outlet temperature, and varying outlet temperatures. Electrical faults and damaged gears are some of the reasons why ...The first step is to find out how to read the code in the vehicle's ECU. If the codes are read, the technician will try to figure out what might be the reason for the problem. If a fuse is bad, the auto mechanic will try to remove it by finding the fuse for the cruise control system. If a fuse blows, the mechanic will need to take it out and ...2003 Chevy Trailblazer A/C Problem. The compressor won't kick on, but had the compressor checked and everything is operational and freon level good, one guy said that it is probably the vent stuck open on only allowing heat to come out and the control module is bad. He wanted to charge around $900.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 most common causes for AC fan blower motor not working in Chevy Tahoe 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.toyomoho. 6419 posts · Joined 2006. #7 · May 24, 2008. Have never done the job, thus just going on the manual. There may be 2 electric servomotors, air inlet and air outlet. Removing the glove compartment, ECU and ECU bracket accesses the air inlet servo. This motor should be held in place by 2 screws.SOURCE: The A/C in my 2004 chevy trailblazer does not blow. Hi there. If no air coming from vents on heat or cool, fan motor or motor speed control resistor bad. If resistor, should work on "Hi". If not, check fuse block. Thanks Paul. Posted on Jul 09, 2009First, check the condenser to make sure it’s not blocked by any debris. Inspect the cabin air filter (if equipped) to verify that it is not clogged. Determine if the blend door is moving. Check the system pressure. If it’s low, you’ll need to charge it and find out where the leak came originated..

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