2000 SLT Quad Cab a/c compressor comes on occassionly for 10- 15 minutes then cuts off. Tried crossing out high and low pressure switch stiil will not come on, freon checked okay.Any suggestions?

 

Is the AC cold when it does work?

 

Yes a/c is very cold when it is working.It seems the compressor only comes on after the truck has been sitting over night and then only works maybe 10 minutes.

 

I have exactly the same problem. I was a little low on refrigerant and added more. The compressor ran the entire time.

Then I went for a short drive and then compressor stopped and won't run. It will run fine tomorrow for about 10 minutes. Any help would be appreciated.


~ Rich

 

Check the connection of the wiring to the clutch. Maybe it is melted or damaged.

 

Mark,

I just checked to see if the cluth was receiving 12V when the AC switch was on.

I found that my clutch had 12V going to it, but was pulling in to turn the compressor. I don't know why it will pull in to start and then won't pull in the second time. I suspect the cluth is the problem.

Does anyone know if you can change the clutch without pulling the compressor?

~ Rich

 

I just did this on my 3.9 Dak, though I only had to put new bearings in. Unless you have the proper tool, I would recommend renting the clutch holding tool from Autozone. You will have a hard time getting the nut off without it. There is also a snap ring in there.

It is definitely possible on a 3.9 but I'm not sure what the belt arrangement is like for the others.

 

I found that the problem with my a/c was the compressor clutch but was unable to find a clutch seperate from compressor for a 4.7.Finally bought a used a/c compressor for $75.00 vacuumed and charged system. A/C is cooling like a new one.Thanks for the advice.