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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.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.You 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 ...christo829 said: The floor/dash vent mode actuator is one unit that controls. whether the air comes out the floor vents or the dash vents (towards. your face). The defrost actuator is separate, and that's the one that. directs air flow against the glass. If I'm understanding you correctly, your dash vents are working, but.The one down by your feet is the drivers. The passengers is buried in the dash. I can R&R one in 4 hours. Plan on 6 the first time. Search instructables.com for silverado dash remove driver passenger remove or How to remove driverside/passanger side temp controll actuators in 04 Chevy Siverado Great step by step write-up.Aug 4, 2011 · 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) : 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 ...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.2006 chevy trailblazer_ls Joined Feb 25, 2008 · 3 Posts #90 ... Now it is cold and the floor vents are not working. I tried the reset with no luck. I took out the center actuator and and tore it apart, Low and behold a broken gear, I replaced the actuator and now when I put it on dash vents it blows out on the floor and when I put it on floor ...Oct 12, 2023 ... Chevy trailblazer ss a/c not workin, no air coming out of vent? Bad blower motor resistor. Like comment share and subscribe for more videos.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.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.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.2004 chevy trailblazer will not blow air from dash vents after changing battery - Chevrolet 2004 TrailBlazer question. Search Fixya ... SOURCE: 97 Chevy Tahoe dash vents not working. ck for vaccum leaks at engine comparment small plastic lines. Posted on Apr 16, 2009. Helpful 0 ;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...Like. JAY4SPEED. 4117 posts · Joined 2008. #3 · Mar 10, 2009. Blend doors are for temperature control, the mode door actuator is what you are after. And yes it is a bitch to replace. If you remove the hush panel from the bottom of the driver side dash, lay down and stick your head by the gas pedal, look up and there it is.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.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 ...Remove the HVAC B fuse for a minimum of 10 seconds. Install the 2006 Rainier HVAC - No air from front vents. I own a 2006 Bu In 1903, Maggie L. Walker founded St. Luke Penny Savings Bank in Richmond, Virginia. In doing so, she became the first Black American woman to charter a bank in the United States —... HOW TO TEST AC PRESSURE SWITCH ON CHEVY, CHEVROLET 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.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. Press the AUTO button. This may be located on the centerstack,

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.2007 trailblazer ac does not blow out dash vents. 172000. Not sure. Ac is coming out floor vents and defrost - Answered by a verified Chevy Mechanic.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.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 ...

Before touching the sensor, I would see if you get 12VDC at the A/C Compressor Clutch. Disconnect the clutch electrical connector, (on the front of the compressor between the pulley and the compressor housing) and with a digital multimeter, see if you have 12VDC between the connector's + & - terminals.Reasons 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.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Problem Description. The HVAC blower motor may stop. Possible cause: I am trying to take the center A/C vents on the dash of a 2007 Chevrolet TB .