Why is my climate control not working on my GM Truck?
The malfunction of the rear climate control system on General Motors trucks and sport utility vehicles that have a separate rear HVAC system. The most common complaint is that the front air conditioning or heater unit performs as expected. However, the rear heat or air conditioning system has either intermittent or no operation.
Is there a problem with the GM blower motor?
If you have a General Motors car or truck from 2002 through 2008 you’ll probably have a blower motor issue at some point. In many cases it’s a problem with the GM blower motor module. The most common complaint when this part fails is the motor will not turn on at all.
Where does the air come from in a GM blower?
As an example, if you select defrost, the mode door points all the air at the windshield. If you select heat, then the air will be directed at the floorboards. In the AC mode all of the air should come out of the air conditioning vents. If you select blend, then you’ll get air coming out of all of the positions.
Is the fan speed set or intermittent on a Silverado Sierra?
Just the blower is intermittent, not the compressor. Fan speed does not have set speeds, it’s more like a rheostat. It has the rotary control.
What kind of climate control does a GMC Sierra 1500 have?
Fits my 2005 GMC Sierra 1500 manual climate control, with 4 hole (2 on each side) resistor. The original one failed at about 5 years, I replaced it with an aftermarket that I got about 5 years out of that one, seems as that’s about the life of these things.
Is the fan speed control a variable speed?
Is your fan speed control a variable speed or does it have individual set speeds that can be selected for example, Off, 1, 2, 3, and so on? Just the blower is intermittent, not the compressor. Fan speed does not have set speeds, it’s more like a rheostat. It has the rotary control.
How to troubleshoot the blower control module GM 3.8L?
Basics Of Troubleshooting The Blower Control Module. TEST 1: Verifying The Blower Control Module Is Getting Battery Power And Ground. TEST 2: Bypassing the Blower Control Module. TEST 3: Verifying The Blower Speed Voltage Signal. Where To Buy The Blower Control Module And Save.