2006 chevy trailblazer ac vents not working - A technician will diagnose your Chevrolet Trailblazer heater using the symptoms you report as a starting point. Because your Chevrolet Trailblazer heater is a complex mechanism that uses an electric fan to blow air through a heater core that is heated by the engine coolant, the problem could be electrical, mechanical, coolant-related, or a …

 
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.. Dark humor orphan jokes

The 2008 Chevrolet Trailblazer has been known to have issues with the air conditioner. The most common problem is that the air conditioner will stop working altogether. Other issues include the air conditioner not blowing cold enough, or only blowing out hot air. There have also been reports of strange noises coming from the air conditioner.Here are the symptoms once more.2003 Chevy TB. This started when battery removed. Manual ac. Hot air blowing through all vents when the ac is on. Switches work. Vents do change when switched. Accummulator/condenser gets ice cold in engine compart. When ac switch is pushed on, slight load on engine. 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. EASY FIX Car Truck No AC - Not Working - Intermittent - Hot On - Off - Chevy Blazer + Chevy S10 TrucksCompatible Year: 1994-2005 Chevrolet Jimmy Sonoma Blaze...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 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 ...Why are the top vents on my 2004 chevy trailblazer not working. The dealer just replaced the instrument cluster and now - Answered by a verified Chevy Mechanic ... vents on dash will not blow air all other vents work great, the vents on side of upper dash work great too ... 2006 chevy trailblazer: heater a/c control assy..dash vent positionair ...I have replaced the actuator, but I can not get the SS to calibrate correctly. I have pulled the HVAC fuse (#39) and left it out overnight. But it doesn't sound like the SS goes through the calibration and my vents are stuck on defrost. I've read that my temp is supposed to default to 74 degrees after I pull the fuse, but it doesn't.Considering a ridge vent for your home? This guide covers the costs, types, and installation of ridge vents. Expert Advice On Improving Your Home Videos Latest View All Guides Late...New ac blower not working Hello Everyone, I have Trailblazer LT 2006. My old ac blower is cracked and when i run it on full, the whole dashboard vibrates and make a loud noise. I ordered a new unit but the problem is that when i installed it it didn't work. And on taking it out from the dashboard it works perfectly fine. Any suggestions!!!The most common reasons a 2005 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 theStep 1: You'll need to your Chevy Trailblazer's fuse box location . On most makes and models, it's to the left of the driver's seat (when you are behind the steering wheel). Step 2: Once you access your vehicle's fuse box, you'll need to locate the radio fuse. You should see a schematic printed on the door.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 ...Dec 5, 2013 · To fix this you need to remove the entire dash to get the heater box out which involves discharging the AC and draining the coolant because the heater core and evaporator come out. Please rate. 783 Answers. Posted on Mar 02, 2009. SOURCE: Vent control. You have a vacuum leak.Defrost is the default postion (no vacuum). 2003 Trailblazer No air from front face vents. first check to see if you have power going to the actuators when you switch the switch to it location if no power replace controller if you have power and no movement from actuators replace actuator. if actuators move remove hvac box and check for broken blend doors. 1 answer.2002 Chevy Trailblazer LTZ is blowing HOT air from driver's side vents - HELP! ... Hate to suggest a trip to the dealer, but you might be able to find a local mechanic who would work on this for less. Climate control problems are almost always expensive. ... Does anybody have any idea why the top vents on my 2002 Chevy Trailblazer will not …Front Vents not Blowing ... 2006 chevy trailblazer_ls Joined Feb 25, 2008 · 3 Posts #29 ... 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 ...No happy medium. - vblazer , Pc, FL, US. Maximize. The 2002 Chevrolet Trailblazer has 13 problems reported for fan switch doesn't work on all settings. Average repair cost is $540 at 89,800 miles.Motor City Rick. 2819 posts · Joined 2017. #2 · Oct 6, 2017. The most common cause is the vent valve solenoid is stuck in the "closed" position. This is the solenoid behind the gas tank (see diagrams) with the wires attached. Get only a factory brand Delco, nothing else.A technician will diagnose your 2006 Chevrolet Trailblazer heater using the symptoms you report as a starting point. Because your 2006 Chevrolet Trailblazer heater is a complex mechanism that uses an electric fan to blow air through a heater core that is heated by the engine coolant, the problem could be electrical, mechanical, coolant-related, or a combination of these systems.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.Buy Now!New Temperature Blend Door Actuator from 1AAuto.com http://1aau.to/ia/1AHCX00282This video shows you how to install a temperature blend door actuator...2004 Chevy Trailblazer with broken front vent actuator. For some time my trailblazer would not blow air out of the front vents. It is a common problem for ...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.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. MECHANIC. 48,601 POSTS. Because one or both of the actuators on the hvac unit aren't working right. They could be stuck or not working at all.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.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...May 3, 2019 · At the simplest level, there are two main reasons why the heater is not working. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue. If the heat is blowing, but blowing cold, it has something to do with the coolant getting to the heater core, or the heater core itself. 2003 Chevy trailblazer, the 4 front dash air. {: ) Check first the fuse labeled HVAC1 10A at the rear fuseblock. If okay, the mode actuator could be faulty. You can try this: turn ignition switch and a/c off for a minute. Then turn ignition on, wait forty seconds. Afterwards, start the engine, and check your a/c again.Nov 19, 2022 ... Chevy Trailblazer EXT Blower ... AC A/C Blower Motor Not Working In A 2004 Chevy Silverado 1500 Truck ... 2006 Sierra AC Reset; Removing FUSE didn't ...Step 1. Install a new actuator to the case and tighten the screws to 17 inch-pounds. Install the rear outlet duct and snug the screw. Guide the center console into your trailblazer and into position. Lift the parking brake to the fully engaged position. Connect the wiring connectors, and slide the console forward.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 membersThis can be done by removing the defroster/heater fuse for about 5 minutes and then reinserting it. On older cars, the engine vacuum supply line can crack or break rendering the vacuum vent control servos non-operative. Additionally, the control switch on the dash can fall apart allowing the vacuum to escape and not reach the servos.Learn how to fix the common problem of air only blowing out of the defrost or top vents on your Chevy Tahoe with this easy video tutorial.Replacing a blower motor resistor on a 2005 Chevy Trailblazer.Symptoms include heater fan only working on one or a few fan speeds, or not at all.The procedur...for those who have more experience working on chevys then i do, my my ac stopped working in my trailblazer. ... (Dec 15, 2006) Subject: Engine Stalls When Air Conditioning Is Turned On at Idle Models: 2004-2007 Buick Rainier 2002-2007 Chevrolet Trailblazer and Trailblazer EXT 2002-2007 GMC Envoy, Envoy XL and Envoy XUV 2002-2004 Oldsmobile ...1. Loose Connections At The Wiring Harness. You replaced it but the new blend door actuator is not working! If the wires come loose at the wiring harness at the back of the module for actuators, replacing the actuator alone will not get any luck. Despite changing the actuator, the blend door actuator will not get the power it needs for operating.Aug 13, 2018 ... Replacing a blower motor resistor on a 2005 Chevy Trailblazer. Symptoms include heater fan only working on one or a few fan speeds, or not ...The ac on my 2003 trailblazer will not blow through the dash vents after the dealer changed the battery. - Answered by a verified Chevy Mechanic ... vents on dash will not blow air all other vents work great, ... On my 2006 Trailblazer LT, I can not get airflow out (hot or cold) of the four chest vents with vents open. ...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 new fuse that has a different amp rating. To check the fuse, first remove the fuses from the box by pulling the fuses out with a fuse puller or by holding the fuses in your hand by ...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.13 posts · Joined 2009. #1 · Oct 24, 2009. 06 Envoy with dual climate and digital controls. Vents do not work but defrost and floor work. Tried unpluging HVAC B fuse but no luck. Wondering where the actuator door and motors are located and how to get to them. Thank-you.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 ...Replacing a blower motor resistor on a 2005 Chevy Trailblazer.Symptoms include heater fan only working on one or a few fan speeds, or not at all.The procedur...rear tops vents on 2005 trailblazer dual ac system do not throw air. rear control switch was replaced and blower - Chevrolet 2005 TrailBlazer question ... 2013 • 2006 Chevrolet Trailblazer. 0 helpful. 1 answer. Front blower motor doesn't work but works in rear. ... The front AC on my 2005 Dodge Grand Caravan does not work at all.This can be done by removing the defroster/heater fuse for about 5 minutes and then reinserting it. On older cars, the engine vacuum supply line can crack or break rendering the vacuum vent control servos non-operative. Additionally, the control switch on the dash can fall apart allowing the vacuum to escape and not reach the servos.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.The most common reasons a 2006 Chevrolet Trailblazer windshield wipers aren't working are broken wiper motor and issues with the switch. 0 % 75% of the time it's theThe 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.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.The most common causes for AC not cooling properly in Chevy TrailBlazer 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. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty …Michigan. Sep 6, 2020. #1. I just picked up an 07 Trailblazer 4.2L which had been sitting since October. When I got it it needed transcooler lines, power steering lines and a R&P, and brakes and ball joints, all is done except ball joints. I didn't exactly notice for sure whether it was or wasn't charging on the way home from the sellers house ...6 posts · Joined 2014. #1 · Feb 1, 2014. i have a 2002 gmc sierra 2500 diesel. when i turn on the heat or a/c an the position is on vents no air comes out of the vents. all speeds work fine, an you can hear the blower motor an all. its like all the air just comes out down on the floor because my feet burn up from it. an also no air from the ...2006 chev trailblazer.( the heater a/c control assy.) with the knob in the dash vent position air does not come out. but in thr floor position it dose. is there a way to check to see if it is the assy ... 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 ...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.Jun 11, 2013 · 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. Dec 19, 2022 · 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 new fuse that has a different amp rating. To check the fuse, first remove the fuses from the box by pulling the fuses out with a fuse puller or by holding the fuses in your hand by ... 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 ...My 2006 Trailblazer vent defrost and heat control stopped working. It only blows out the floor/ heat vents no matter - Answered by a verified Chevy Mechanic. ... 2000 Chevy Impala: work great..it only blows..air flow..defrost vents. I have a 2000 Chevy Impala, the air use to work great. All of a sudden it only blows on "5" which is high (not as ...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.3497 posts · Joined 2007. #2 · Apr 13, 2007. You have to remove the right side access cover & you'll see 1 bolt holding the vent in. Remove that bolt and the vent should pull out. -Mike. Car Domain. AKA PROVY :thumbsup: Rock On!I have replaced the actuator, but I can not get the SS to calibrate correctly. I have pulled the HVAC fuse (#39) and left it out overnight. But it doesn't sound like the SS goes through the calibration and my vents are stuck on defrost. I've read that my temp is supposed to default to 74 degrees after I pull the fuse, but it doesn't.It's in the fuse panel above the glove box. Remove it, wait a few minutes, then put the fuse back in. Start the car, but DO NOT TOUCH the AC controls. All the motors for the AC mode and heater doors will recalibrate. After a few minutes, then adjust the HVAC settings and see if it fixes it.In this video I show how to fix the air vent controls that do not work. In my car only speed 4 was working and speed 1, 2, 3 did not work. Hope it helps you ...Is your Chevy truck blowing hot air in the middle of summer? I found a way to fix the actuators that cause this problem (in certain cases). All you need is...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 ...Aug 22, 2019 · How to fix air that only blows through defrost vent. Chevy silverado. Cheap easy fix..l disclaimer: Terrible video footage.Protip: Venmo @Nicholas-Wellmerli... 9223 posts · Joined 2009. #5 · Feb 23, 2012. Re: AC/Heat only blows through all vents, Help! while youre down there- turn the key to on--. and move the selectors--- you should hear/see the blend door motors working- or not working. 2023 Traverse LT 3.6L 15,000.2004 Chevy Trailblazer with broken front vent actuator. For some time my trailblazer would not blow air out of the front vents. It is a common problem for ...I have a 2002 Chevy Trail Blazer 4.2L.The vent air comes out the top windshield defrost as commanded as well as the floor as commanded,but never the vent as commanded,it is manual control knobs.Any id ... 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 ...The most common causes for AC not cooling properly in Chevy TrailBlazer 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. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty …Fan Control. Controls the speed of air delivered through the system vents. 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. If your vehicle has a Fan knob, then turning the knob counterclockwise will decrease the fan speed and turning clockwise ...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 ...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. If there is still a problem, the actuator for the temp blend door may have failed. Scan the HVAC for codes. This did it. Thank you!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 …I have a 2003 chevy trailblazer, all of the vent blow air except the middle top vents, the low beams dont work and the - Answered by a verified Chevy Mechanic ... I did the reset and it did not work. It is only the middle vents that will not blow. I did change the relays. ... Please provide wiring diagrams for headlamp system on a 2006 chevy ...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.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 …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. 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. 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?HVAC actuators for 03 Chevy Trailblazer, blend door, hot to cold, floor to defrost, floor to ventsAug 13, 2018 ... Comments895 · 2006 Sierra AC Reset; Removing FUSE didn't work · 2004 Silverado passenger blend actuator · 04 Trailblazer Front Vent Fix - ...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.26436 posts · Joined 2005. #2 · Jul 31, 2009. The rear AC mode actuator can fail just like the front ones. Try pulling the fuse for a control module reset, or get ready to replace the actuator. Make sure you get the mode, and not the temp actuator. Post up if you need the exploded diagram from compnine.com, which has been posted before.I am trying to take the center A/C vents on the dash of a 2007 Chevrolet TB out to install a nav unit. Anyone have info on how to remove?:bonk: Save Share. Like. ... Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum. 1.3M posts 174.2K members Since 2004 A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. ...Sep 28, 2021 · HVAC actuators for 03 Chevy Trailblazer, blend door, hot to cold, floor to defrost, floor to vents 2006 chev trailblazer.( the heater a/c control assy.) with the knob in the dash vent position air does not come out. but in thr floor position it dose. is there a way to check to see if it is the assy ... 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 ...

Step 1 - Recalibrate the HVAC. 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. Turn the ignition off. Find the three HVAC fuses; Two are under the hood and one is in the cab fuse box.. Fidium ont

2006 chevy trailblazer ac vents not working

bobbynguyen Discussion starter. 1 post · Joined 2019. #1 · Jan 28, 2019 (Edited) Hi folks, I have the common problem of my HVAC mode actuator failing after a dead battery or battery disconnect. I have successfully replaced the actuator twice using some online guides. However, my actuator has gone out again (dead battery, probably a parasitic draw).1.With key off, remove fuses #36 & 39 from rear fuse box, wait about 90 seconds and then reinstall. 2. Turn key to ON position (don't need to start engine), do not touch any HVAC controls for at least 90 seconds. 3. Start engine and check operation of HVAC, if there is still a problem repeat steps 1 & 2 one more time.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.May 23, 2011 ... Comments122 · 2003 chevrolet trailblazer vent problem · 2002 Chevy Trailblazer Blower Motor Fuse, HVAC Fuses · 1996 Chev.Blazer blend door act...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.May 21, 2023 · 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. May 16, 2022 · 1. Loose Connections At The Wiring Harness. You replaced it but the new blend door actuator is not working! If the wires come loose at the wiring harness at the back of the module for actuators, replacing the actuator alone will not get any luck. Despite changing the actuator, the blend door actuator will not get the power it needs for operating. 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.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.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 new fuse that has a different amp rating. To check the fuse, first remove the fuses from the box by pulling the fuses out with a fuse puller or by holding the fuses in your hand by ...My top vents on my 2002 Chevy Trailblazer will not blow any air 4 Answers 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...First under your hood on the driver side is a fuse panel, remove the cover and there is a diagram underneath. Check the BLOWER fuse,#35 which is a 40 amp fuse. If that is ok go to the seat behind the drivers position and flip it forward. Under it is the rear fuse panel. You need to check three fuses in this location.SOURCE: 2006 Trailblazer AC fan I believe you must be talking about the inside blower fan tht is not coming 'on'. It could be the switch tht operates the fan, remove the switch and check for live wire if theres current over there, if theres current thn operate the switch and check other ports for continuity of the current flow.A faulty fuse or relay. This is one area to check that might be responsible for your dashboard air vents not working. If there is a bad ventilation fuse in your vehicle, the blower motor will not be able to carry …Sep 5, 2017 ... Comments15 · 04 Trailblazer Front Vent Fix - No A/C - Broken Actuator · 2003 chevrolet trailblazer vent problem · 2004 Tahoe - rear hvac system...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 ...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..

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