This 2004 Chevrolet Silverado came in with the complaint that the blower motor will not turn off even with the key off. This is relatively common problem of the the full sized Chevrolet, GMC and Cadillac trucks with auto a/c controls. The first step is to lower the passenger side hush panel under the dash. … Continue reading “2004 Chevrolet Silverado, Blower Will Not Turn Off”
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”
This 2000 GMC Yukon came in with the complaint that at different times the stop lights, tail lights, turn signals and back up lights stop working. I did the basis bulb and socket tests and found nothing wrong. When I got to looking a little deeper in the system I found this rear harness junction … Continue reading “2000 GMC Yukon, Rear Lights Inop”
This 1997 Chevrolet Suburban came in with the complaint that the cruise would work sometimes. This repair applies to multiple Chevrolet and GMC trucks and vans that use the cruise servo number 25315088, gasoline only, no diesels. For a list of these vehicles please go to the ACDelco website and you will find a tab … Continue reading “1997 Chevrolet Suburban, Cruise Control Inop”
This 2000 Chevrolet Silverado came in with the complaint that the a/c was not getting cold. A quick visual inspection found that the a/c belt was gone. Most owners do not even realize there is a separate a/c belt. In order to replace the belt, the primary serpentine belt has to be removed. This requires … Continue reading “2000 Chevrolet Silverado, Changing The A/C Belt”
This 2000 Chevrolet Silverado came in with a complaint that there was not much air coming through the vents. The customer said he thought the blower motor might be worn out. A quick look under the dash and I saw that this truck has a cabin air filter. I removed the single screw at the … Continue reading “2000 Chevrolet Silverado, Changing The Cabin Air Filters”
I have been asked many times about the auto blower control on 2003- 2007 Chevrolet Silverado Classic and GMC Sierra Classic trucks so I decided to take some readings on my truck. This also applies to the Tahoe, Yukon, Avalanche, Escalade and Suburbans of the same era with auto a/c controls. The blower control processor … Continue reading “2003 Chevrolet Silverado, Blower”
I have been asked several times how to change the blower motor in later model Chevrolet and GMC Full sized trucks as there are no mounting screws. This includes 2003 through 2007 Classic series trucks. There is a locking tab that has to be pulled down past the stop and then the motor assembly can … Continue reading “2007 Chevrolet Silverado Classic, Changing The Blower Motor”
This 1997 Chevrolet K1500 Pickup came in with the complaint of the left turn signal will not work with the headlights on. I checked and the turn signals did work with the headlight off but the actual problem was that the turn signal would not work with the park lights. In fact if the park … Continue reading “1997 Chevrolet K1500, Turn Signal Problems”
The customer brought this 2002 Chevrolet Silverado 2500HD, with a 6.6 liter diesel engine in, with the complaint that the batteries go dead and is slow cranking sometimes. He had replaced the batteries and the problem got better but is now starting to happen more often. The batteries on a dual battery system have to … Continue reading “2002 Chevrolet Silverado Battery Goes Dead”