AC compressor problem

FivepointSlow · Mar 30, 2019

Spring is here and the temps are rising in New England and I'm just about ready to put the Stang back on the road for this season.
That being said I'm now just remembering that my AC does not work...
The compressor never kicks on, the clutch on the pulley is always disengaged. And I'm not sure how to approach diagnosing it.
Is there a fuse for it I should check? Does it not spinning and turning on mean i need a new compressor?
Any help or suggestions would be appreciated!

castine917 · Mar 31, 2019

How much refrigerant pressure do you have?

FivepointSlow · Mar 31, 2019

castine917 said:
How much refrigerant pressure do you have?

I havent even checked tbh. Will it not turn on if the pressure isnt high enough?
Would make sense...

lwarrior1016 · Mar 31, 2019

There is a pressure switch on the accumulator on the firewall, unplug it and jump the wires together. If the compressor comes on, then either the charge is low or the low pressure switch is bad.

castine917 · Mar 31, 2019

FivepointSlow said:
I havent even checked tbh. Will it not turn on if the pressure isnt high enough?
Would make sense...

If higher or lower than range it will not turn on. Can test either with gauge or as warrior said to.

FivepointSlow · Apr 1, 2019

Looks like I am going to have to bring it by a shop and have them check my freon pressure..
Found and jumped that sensor and wouldn't ya know, compressor kicks on.
Seemed to blow relatively cool air.. But didn't want to run it too long not knowing the freon status.

Thank you guys for your help!