[av8orr]

My A/C compressor clutch disengages when there is no load on the engine (idle). If I run the RPM up in Park, it still will not engage. It usually will engage when the engine is under a load.

Any ideas?

Thanks

 

[Chinookman]

Check the charge by hooking up gauges and see what the hi and lo head pressures are. May be a bit low.

C-man

 

[jimmyendicott]

Yea Chinookman is right. Sounds like your pressure (charge) has reached the point that triggers the low pressure switch witch will keep your compressor from engaging.

 

[Chinookman]

the good news is a quick trip to AZone will get you a refill kit and your good to go. Oh and one of them comes w/ a gauge.

PS: Look to see if the Lo-press. sw. has a leak it's a schraeder valve and they also are prone to leaking a bit. Good news again they can be changed out w/o losing the entire charge......
let us know....C-man

 

[av8orr]

Thanks for the help. I'll get the refill kit tomorrow.