2002 express van when ac is on hot air is blowing.

30

Asked by Apr 08, 2013 at 06:36 PM about the 2002 Chevrolet Express

Question type: Maintenance & Repair

hot air is blowing with ac on. fan is okay. blowing force is good. thought it needed charging. not sure is clutch is coming on. was trying to look for it. not sure where it is.

1 Answer

92,295

I looked at a couple Express engine pictures and I know what you mean. It's a van where you can only see a small portion on the top. --- If the A/C is on, you should hear the A/C clutch pull in and release. It has a sound all of it's own. --- Your problem could be that the HVAC system temperature control door is stuck closed. That would blow heat all the time. It's not stuck if you can change temperatures. --- The other scenario is that the compressor is shot or the fuse is blown. If you can hear the clutch cycling, the fuse is good. --- To find the compressor, try to follow the serpentine belt. It goes around the crank, the alternator, a idler pulley and the A/C compressor. It might go to the power steering pump and the water pump. That depends on the engine and maker. The GM vehicles I am familiar with have the compressor down low. There a condenser that looks like a radiator that's in front of the radiator. It has a couple of fluid pipes attached to it. Follow the pipes. One it bolted to the A/C compressor.

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