Jay351

Im still trying to get my AC to work, when I push the switch and set the fan speed to any speed but 0 the switch lights up green.. Ok

my idle goes down a LITTLE but it does that if I turn the fan on at all,

I was trying to see if my clutch was kicking in but bare with me here im really not sure what to look for.

I turned on the truck, ok I look at the pully the outer part is turning but the inner part is not (using a mark on it for refrence) I go in the truck, and turn the ac on, the inner part is still not moving.

Is my clutch gone? Any suggestions would be great.

thanks

p.s search didnt yeild much help..

wardriver

apply 12+ (fused) to the wire going into the compressor. First do it with the engine off. See if the clutch engages. (It will be obvious if it does - loud click/pop) If it does, trace your wiring back to the switch to find the issue.

justinking060310

did your a/c get unhooked when you did you HG/cams? If there is no freon in the system, the clutch will not kick in - you have to have at least 40 lbs of pressure on the system for the clutch to kick in -

Jay351

*wardriver* Could you explain that in lamen terms?


*kat*

I know my dad had his friend unhook that wire going to the compresser since it was kicking on and off at idle, I went to go hook it back up but it was already done.

this happend a few years back so im reallly not sure if there is any freon left. I just dont want to waste my money getting it charged for nothing.

justinking060310

You can hook a set of a/c gauges up and it will tell you if the system has pressure -- if you lived closer you could swing by.... do you know anyone with gauges?

Jay351

My mechanic MIGHT have some, I will ask him next time see him.

wardriver

Sure.
There is an internal relay inside your compressor that needs to be energized in order to engage your clutch. Look for two wires that come from under out of the compressor pulley. One is has a screw/bolt that goes into into the case of the compressor. The other goes into a connector that will go into your wiring harness. That is the 12V+ (12 volts positive) lead that energizes the relay. If you apply 12V+ to the compressor side of that connector that goes into the wiring harness you will hear the compressor click (or thud) which means the clutch is engaged.

And as mentioned before do this with the engine off. If it clicks the clutch part of your compressor is good.

Then you can trace the problem from there. Grab a test light or volt meter and attach it to the harness side of that connector you disconnected. Turn the engine key to run and turn on the fan and AC compressor switch. If you have voltage (12V+) then you know you problem is not electrical. Then it is time to have your freon pressure measured. I think harbor freight has the gauges on sale for 1/2 off this week. Maybe that was last week...I'm not sure.

I hope that helps. Its a simple process....don't mean to make it complicated.