air conditioning

Hello all, a couple days ago my 05 Jimmy started making a grinding noose when I turned the engine on. After a couple minutes the grinding noise stops. After some troubleshooting I determined the noise was coming from the compressor clutch. If the vehicle is started without a.c. turned on, the...

My Air Conditioning does not blow cold air. The heating and ventilation is all fine but when I turn it the knob to cold it continues to blow room temperature air out of the vents. Any advice?

My Air Conditioning does not blow cold air. The heating and ventilation is all fine but when I turn it the knob to cold it continues to blow room temperature air out of the vents. Any advice?

1991 GMC Sierra 1500- Checked the manual and it said the AC/HTR and the 4WD lights on the floor console are on the same fuse. So I put it in 4WD and sure enough the light does not come on. I bought the truck 3 days ago and I ensured light worked then. So I know the lights work. So its obviously...