2006 chevy trailblazer ac vents not working

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 ...

Rear vents not blowing cold air when AC is on. ... 2006 Envoy Denali 5.3-No Cats, Catch Can, 09 Bluetooth, PCMofNC tune, TCM (1), Cold Air Inductions Custom 4" Intake with LS7 MAF, E-fans, 3" lift with 32" tires sitting 37.5". ... Chevy Trailblazer SS Forum. 2M posts 30.7K members Since 2007 A forum for all things Trailblazer SS including ...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).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 ... 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 ...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 ...The blower did not work when I tried to start the car. I checked to see if it would work in all of the positions (1-5) with no luck. ... I Have A 2006 Chevy Trailblazer And I Am Not Getting Heat. The Back Of The Truck Blow Air Out The Vents But Its Cold. I Had The Front Blower...Crash Tests 3. Recalls 8. Investigations 8. TSBs 752. Lemon Law. CarComplaints.com Notes: Carrying the not-so-proud traditions of its 2002 predecessor, the 2003 has a handful of instrument panel ...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 defrost.I have a 2004 Trailblazer. The A/C vents on the floor and the defrost work, but the dash vents do not unless I pull the HVAC B fuse inside. Of course then it blows hot air, but that's the only way air will come from the dash vents. Any suggestions of what I could check next?

The best way to vent an attic is by having a proper roof vent system in place. Are you curious about roof vent installation? Learn more about how the systems work and how to instal...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 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.Air doesn't come out my vents at all. 4 days and 168,000. ... I have a 2006 Chevy Trailblazer, and the air cond blower doesn't work on high. works on all other speeds. any suggestions. ... I have a 2004 Chevy Trailblazer. The fan will not work on setting 5. Works on 1-4 though. However, it blows only at the feet or the …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. 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.

2. 2001FZ1 Discussion starter. 201 posts · Joined 2008. #1 · Jan 31, 2010. If I have the HVAC controls set to blow out the dash vents and the temp setting to 60, the air flow is very good. When I turn up the heat, the air flow is significantly less. The heat is good, just less air flowing. Is this normal? 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 ... Rear vents not blowing cold air when AC is on. ... 2006 Envoy Denali 5.3-No Cats, Catch Can, 09 Bluetooth, PCMofNC tune, TCM (1), Cold Air Inductions Custom 4" Intake with LS7 MAF, E-fans, 3" lift with 32" tires sitting 37.5". ... Chevy Trailblazer SS Forum. 2M posts 30.7K members Since 2007 A forum for all things Trailblazer SS including ...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 ...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.

Albertsons cakes pictures.

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.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.1996 Chevy Suburban 1500 LT: 151,000 miles..blows cold air. 1996 Chevy Suburban 1500 LT 5.7 liter 151,000 miles. There are 2 Problem: 1) Rear air conditioning blows warm air and front air conditioning blows … read more. Hal.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 ...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 ... 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.

The rear unit is located behind the inside rear quarter trim panel on the pasenger side. This has almost all the same parts as the front, but work independently from the front. The rear has a temperature door motor and a mode door motor (for changing the position of the airflow). They are the same part as the ones in the front dash, and fail ...Install the HVAC fuse or reconnect the battery. Start the engine. On systems with auto a/c controls the controls will default to 74 degrees F when the ignition is turned back on. DO NOT TOUCH the a/c controls. Let the engine run for 1-2 minutes. Turn the ignition off for at least 10 seconds but no more than 30 seconds.I have a 2003 chevy trailblazer, all of the vent blow air except the middle top vents, the low beams dont work and the wipers stay on all the time. ... Trailblazer SS, 50k miles, the battery went bad, I replaced it at Auto-Zone, but shortley after noticed the A-C was working, but the mid-leval air ducts did not.What's up guys bring you as a video showing you guys how to fix the AC vents on any Silverado all the way from 1999 to 2007 pretty much the little vent actua...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.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 thanksPress 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 ...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.The most common causes for AC fan blower motor not working in Chevy Colorado 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.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.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!

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.

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).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 …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 ...Jun 9, 2010 ... 2003 chevrolet trailblazer vent problem ... filtró de aire acondicionado Orifice tube, TrailBlazer 2006 ... ▶️A/C Vents: Not Working "FIX"06 Chevy .....have 2007 trailblazer changed battery ,front blower vents stopped working, aweek later blower stopped working all together.replaced resister up under glove box starting working again,but with still same problem,not blowing out the front getting ready to take it to chevy for calibration with tech 2 and blower went back out ,replaced resister again and checked all fuses that had to do with hvac ...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 heater and a/c fan in my 2003 Trailblazer hasn't worked on speed 5 in a LONG time. IMO it's not really a necessity to have so it wasn't a priority. Here'...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. 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 ...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.

600 industrial dr lewisberry pa.

50 broad st ny ny.

Air doesn't come out my vents at all. 4 days and 168,000. ... My A/C controls do not work. Previously, the air was stuck on feet only and woul dnot chang modes to blow on face. It WAS cold, but only on feet. ... I have a 2006 chevy trailblazer SS and the blower motor will not turn off even with the key off doors open only pulling the fuse will ...3,854 Answers. Pull the HVAC B fuse located inside the truck for 5 min and then place it back in.The short time the fuse is out and placed back in, the control module will attempt to recalibrate all the actuators, by running them CW and CCW until they hit their stops. Then the control module remembers those positions and tries to not slam the ...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).DAJ0424. MEMBER. 2005 CHEVROLET TRAILBLAZER. 6 CYL. 4WD. AUTOMATIC. 81,500 MILES. Have a 2005 Chevy Trailblazer LT 4WD and noticed that when I turn the heat on my feet it blows good, but on top it does not blow very strong and nothing comes out on high when I switch it to feet and top. Any suggestions on what may be causing this and how I can ...My 2002 GMC Envoy is having A/C problems. I decided to swap an A/C actuator to see if it would fix the problem, it did not. I have to get another A/C control...With the key out, radio off and fan off, remove that same fuse, leave it out for at least 10 seconds and replace it. Now turn the key to run (but do not start the truck) and listen to the actuators as they run through their range of motion. You will hear them very clearly. It takes about 30 seconds to 2 minutes.Chevrolet 2003 TrailBlazer For a digital air flow system try resetting the HVAC unit. Either take out the fuse for the HVAC module or disconnect the battery for 5 or 10 minutes. Reconnect battery or replace fuse. Turn the ignition to ON and DO NOT STARTor ATTEMPT to START ENGINE !!.You should hear the actuators, motors etc resetting.Ac / Heater not blowing Blower Motor Easy Fix-Chevy and Ford and many other makes and models of Vehicles.To Support Flashback502:PayPal: https://www.paypal....Step 1: Take out the blend door actuator. Take out the Chevy blend door actuator, located near the heater box using a screwdriver, and disconnect the wiring clips. The clips may break if they are brittle, so work with a light hand. Press the wiring connector tab, remove the clips and pull it off.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. ….

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. ...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 ? ... 2011 • 2006 Chevrolet Trailblazer. 2 helpful.Problem Description. The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of …2006 Chevy Trailblazer. My A/C controls do not work. Previously, the air was stuck on feet only and woul dnot chang modes to blow on face. It WAS cold, but only on feet. ... 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.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. ...This is a small servo motor that turns the door internal of the HVAC housing. There is a recalibration procedure for the actuator that you can 'try' first: Place the ignition switch to the OFF position. Remove the "HVAC" fuse (located in the rear fuse block) for a minimum of 10 seconds. Re-install the HVAC fuse.HVAC actuators for 03 Chevy Trailblazer, blend door, hot to cold, floor to defrost, floor to ventsradio ac electrical problem My wife's 2007 trailblazer with 67,000 miles started having these same types of problem a month ago. We first noticed the intermittent speaker outage on the radio and thought it was a bit odd. Now it seems to have deteriorated from seldom to often.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.2006 - 2009 TrailBlazer SS Tech. 06-08 SS General Tech Q&A. General Heat blows cold only on one side ... 1 is to control percentage of air flow to dash vents vs floor vents ... A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Come join the discussion about performance, modifications, … 2006 chevy trailblazer ac vents not working, 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., Disconnect the air injection hose from the bottom of the intake tube. There is a brown clip attached to the intake air sensor. Disconnect this clip, be careful with a smooth and steady force, it's in a "C" shape. Remove the two bolts that hold down the resonator box. This is the box with the Vortech 2400 imprinted on it., 2004 Chevy Trailblazer....heater control doesn't switch from upper to lower vents and stays on floor setting and.AC only - Answered by a verified Chevy Mechanic ... I have a 2003 Chevy s10. The heater is not working. The blower works and the heater core is not leaking. ... The front vents do not blow air, but air does come out of defroster ..., There is no difference between an AC Adapter, a power supply and a charger in reference to a laptop computer: all three functions are handled by the device's external power device...., Feb 8, 2023 · 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. , Satisfied Customers: 14,182. Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles A6 - Electrical / Electronic systems A7 Heating / Air Conditioning systems. Verified. Chad Farhat and 87 other Chevy Specialists are ready to help you., 2003 chev trailblazer ac will not blow air thru dash vent, however air will blow thru defroster and floor vents. ... I have a 2003 chevy trailblazer, the dash vents will not produce air flow. ... 2005 Chev Trailblazer. Usually my air conditioner works fine but, when it is hot outside and I have been running my air conditioner for a while, ..., 15 posts · Joined 2010. #2 · Jan 3, 2012. You might check all of your vacuum hoses to make sure they are connected and/or not cracked. I had a 2000 GMC astro van that did something similar with the AC blowing up out of the defrost, but not the vents/floor. 06 Chevy Silverado V6 4.3 Reg Cab., 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., Hi in this video I will show you how to confirm the fix on you vent no blowing air, 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., 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 a 2004 Chevy Trailblazer. The fan will not work on setting 5. Works on 1-4 though. However, it blows only at the feet or the defrost/windshield area ..., 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., 40,000 MILES. Hi, the rear heater vents just blow cold air. The vents for the front system blow hot air and the engine temp is to specs. You can control the rear cabin fan speed from the front or from the rear. The fan speed will adjust with the controls from either one but no matter what you do all you can get from the rear vents is cold air., Problem Description. The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch. 345 people reported this problem., Hi in this video I will show you how to confirm the fix on you vent no blowing air, This calibration procedure worked for me: Ignition off, A/C off, blower switch off, remove fuse 36 (or disconnect the battery), wait 2 mins, insert fuse 36 (or reconnect battery), ignition two clicks to run but don’t start, wait 2 mins, start car, turn on A/C & blower, test mode switch. Everything should work now., 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., 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 ..., 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 ..., MECHANIC. 48,606 POSTS. Check to see if both heater hoses are hot going to heater. Check fluid level if low have pressure checked for a leak, finally check to see if actuator is working onheater under dash. SPONSORED LINKS., Driver side air conditioning blows hot air while passenger side blows cool air on 2006 Chevrolet Trailblazer. I would start by checking all your fuses. Then I would check the A/c control panel on your dash. There is little vaves inside those black boxes under the dash., If the air only blows from the defrost vents, your problem is a vacuum leak more than likely under the hood either to or from the vacuum tank. The vacuum tank commonly looks like a plastic ball with vacuum lines attached to it. Check for cracked lines, disconnected lines or a cracked vacuum tank. Jun 27, 2011 • 2006 Chevrolet Trailblazer., 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 ..., Basically set your temp to cold before you do it and then remove and replace the actuator. When installing it just make sure the actual door position lines up with the actuator. There should be a notch for alignment but just make sure the door is in the door position is in that position. If you are unsure, start the engine and turn the system ..., An expert who has achieved level 1. An expert that has 1 follower. I have a 2006 chevy 3500 work van. I cant get the dash vents to work. The AC does co0me out of the floor vents. The blower works just fine. Do I need to replace the switch for the vent. Someone said it might be a vaccum probblem. If so how do I fix it., 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 …, I have an '06 Trailblazer EXT w/ DVD player. The rear cabin vents are not blowing any air. This includes the roof and floor vents. What has been done: -Checked all the fuses, in all locations. All fuses fine.-Turned on the rear fan vents via the front controls. All settings tested (R-3). - Closed all the front vents to force more air to the ..., 1. AC Blowing No Air at All. Usually the culprit. If your Chevy Blazer 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 vehicle’s cabin, a bad blower motor usually causes this scenario., 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 ..., Roger roger. That little clutch cycling switch is a common mode of failure on these AC systems, not to mention a common place for the system to leak. Jumper the connector and verify that the system cools, check high and low side pressures while you're at it. If all is good, replace the switch, they're only 12 - 15 bucks. Like., 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., 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.