Funny you ask that. I rented some manifold gauges this weekend to test the system. I tested it after I drove home from work so it was at normal operating temp. Of coarse it was working just fine during initial testing, as this is an intermittent problem. I drove it around the block and came back and hooked the gauges up again. When I hook up the gauges, my service manual says to pull the low pressure clutch cycling switch connector and install a jumper wire between the two connectors. I had done that before when everything was working well. This time however, the clutch would not engage and that's when it wasn't blowing cold inside the truck. I checked to see if I had a good connection and I did. I got my multimeter and checked the connector and had battery voltage on one side and ground on the other.
So, now I'm pretty convinced that either I have a bad compressor or clutch. My question to you is how do I tell if it is the compressor or the clutch and can I just replace the clutch by itself, or do I need the whole set-up?
Sunday, May 9th, 2010 AT 6:52 PM