2000 Dodge Dakota A/C blows cold when first started. Afte

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?

I tested again today, and could not get it to act up. It's almost like it only does it when it is very hot outside and been driven for a while. Do you thing that the clutch would have an intermittent failure like that? Also is it the actual clutch or the clutch coil?

I replaced the clutch and the coil and so far it seems to have fixed the problem! I got a new bearing with the kit I bought, but was unable to get the old one out. I don't have access to a shop press. It wasn't seized up or anything so hopefully I will be ok with that. Although, now every time the clutch engages I hear a little chirp. Any idea what that could be? You think I might have over-tightened the nut on the front of the compressor?

It's got good tension, but the belt could defiantly be replaced. If I'm not mistaken it's the original. 150000 + miles on it! I'll replace it.

I have also noticed that I have a small coolant leak, from where I have no idea. I have pressure tested it several times and I see no drop in pressure on the gauge. I have to top of the fluid probably every other month or maybe even longer. While driving I can sometimes smell it but only with all the windows down. Should I pressure test it while hot and running, or get the dye to put in the system?
Any other suggestions?