A/C Problem

[southern7.3]

Ive got a problem with my a/c. Sometimes when I turn it on the compressor wheel will not engage. I go and pop the hood and took the little electrical connector and you will here the click and the compressor wheel will engage and whala cold air. However sometimes it will cut off and all that. I was thinking what would it do if I cut the connector off from the two wires and directly attached them to the two little metal poles on the other end of the connector. This may be stupid I dont know thats why im asking. Anyone else had this problem.

*****The connector I am speaking of is the connector right behind the oil fill dipstick. It has two wires running from it down into one of those plastic tubes and then two more comming out of that and into the side of the compressor.

[bryanbrown]

Mine did that, and I did that exact thing with the connector. I let it sit overnight, and the next morning my batteries were dead. Related? I don't know. I have no idea how all that works, but took the jumper I made off just in case. I finally just took it in and they put a new clutch in the compressor.

[southern7.3]

dang it drained your batts. Iono whats up b/c if you bump it then it works. Imma try to get it looked at this weekend. I was thinking that the little metal sleaves that the post slide into are wore out?? and when you bump the connector it makes the connection.

W/E is wrong with it I need to get it fixed. Im tired of being hot.

[NCHornet]

I would fix it right, sounds like you have a short. If a wire is loose in the connector you can replace the metal piece in the connector, or work some epoxy in from the backside might keep it making contact, but I prefer replacing the contacts.
NCH

[sirnunya]

I think your talking about the low pressure switch? I had a similar problem and replaced the switch and still had the problem. A shop took out a shim in the compressor clutch and now it works fine

[symbols]

Don't go jerry riggin your truck. First you need to know if you have voltage at the compressor when it's supposed to be on. An easy way to tell this is by turning it on and tapping the clutch with a screwdriver or small hammer. If it is just weak it will engage. If you do have voltage then you most likely have a worn or weak clutch. When I was a mechanic we rarely did shims because by that time it's most likely going to need a compressor soon and then you have a pissed off customer returning their car cause you didn't fix it right. I don't know if I would even shim my own compressor. I would rather just replace the compressor and not have to worry about it for another several years.