This 2005 Cadillac Escalade came in with the complaint that the driver’s side vents have switched to blowing only hot air with the a/c on. The passenger side air is cold. The telltale B0408 code for a faulty driver’s side blend/ temperature door actuator. Granted most people do not have a dealer level scan tool … Continue reading “2005 Cadillac Escalade, Driver’s Side Vents Blow Hot Air, A/C On”
The topic of how to perform the actuator recalibration procedure on Chevrolet , GMC and Cadillac Trucks and SUVs has become an ever increasing topic of discussion. For manual systems it does not matter where the a/c controls are set but if you feel the need to do something, turn the blower switch on (I … Continue reading “HVAC Actuator Recalibration Procedure For GM Trucks and SUVs”
This 2005 GMC Sierra came in with the complaint that the air will only flow from the defroster vents, regardless of where it is commanded to. This Sierra has auto a/c controls and no floor mounted center console. Of course the customer brought the truck in, knowing that I had to lay under the driver’s … Continue reading “2005 GMC Sierra, Air Blows Only From Defroster Vents”
This 2004 Chevrolet Silverado came in with a faulty passenger side blend door actuator. In the last post I got you to this point. If you have not yet read that post please click here. Now that the dash cover is off and you can see the actuator, but you still cannot get to it. … Continue reading “2004 Chevrolet Silverado, Changing The Passenger Side Blend Door Actuator, B0424”
This 2004 Chevrolet Silverado came in with multiple hvac actuator faults. After diagnosing a faulty passenger side blend air door actuator with my Tech 2 scan tool it was time to remove the dash cover. Not a big deal but there are a lot of steps. Lift the lower edge of the dash end caps … Continue reading “2004 Chevrolet Silverado, Dash Cover Removal”
This 2003 Chevrolet Silverado came in with the air flow stuck on defrost. A simple diagnosis of a code B0263 found a faulty mode actuator. This repair applies to 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, and 2011 Chevrolet Avalanche, Silverado, Suburban and Tahoe. It also applies to Cadillac Escalade, GMC Sierra and Yukon … Continue reading “2003 Chevrolet Silverado, Changing the Mode Actuator, Code B0263”
This 2004 Chevrolet Avalanche came in with multiple a/c problems including a code B0268, fault in fresh air /recirculation actuator assembly. This procedure applies to full sized Chevrolet and GMC trucks from 2003 to 2007 Classic. Avalanche, Sierra, Silverado, Suburban, Tahoe and Yukon. 1999 through 2002 Trucks would also be very similar. This post is … Continue reading “Changing The Recirculation / Fresh Air Door Actuator Part 2”
This 2004 Chevrolet Tahoe came in with the complaint that the air on the driver’s side would change from cold to hot while driving down the road. When it shifted to hot the customer could not get it to turn back cold. Sounds like a faulty air mix actuator to me. I checked codes and … Continue reading “2004 Chevrolet Tahoe Blows Hot Air”