GraniteCow
NAXJA Forum User
- Location
- USA
I disconnected the A/C lines on my 1996 4.0L XJ and replaced the dryer while I did the heater core and had the system evacuated/recharged at a local shop. I picked it up about an hour after they charged it, drove home (10 minutes), popped the hood once I was out of the snow, and saw that the compressor doesn’t kick on. The caps on the charge ports are also missing :/
I checked the relay and 2 fuses (engine bay and cab), they’re fine. Compressor turns freely by hand. When I unplug the A/C relay and plug it back in, the clutch (sometimes) kicks on for a split second and turns back off. It’s acting like it has no pressure, but it was just at a shop for a full recharge. I called the shop and they said they do a vacuum test before filling to check for leaks. They also said they tested it afterwards to ensure it works though, so...
My thoughts are:
a) bad pressure switch
b) a fuse/circuit somewhere I don’t know about
c) shop had a new guy work on it and me messed up
How often do these switches go bad? Are they safe to replace while the system is charged? Is there another circuit to check? I’m scheduled to bring it back in Monday morning, but I’d like to figure this out since I might not be getting a straight story from the shop. A new switch is $40 at O’Reilly, I don’t have any gauges to measure pressure.
I checked the relay and 2 fuses (engine bay and cab), they’re fine. Compressor turns freely by hand. When I unplug the A/C relay and plug it back in, the clutch (sometimes) kicks on for a split second and turns back off. It’s acting like it has no pressure, but it was just at a shop for a full recharge. I called the shop and they said they do a vacuum test before filling to check for leaks. They also said they tested it afterwards to ensure it works though, so...
My thoughts are:
a) bad pressure switch
b) a fuse/circuit somewhere I don’t know about
c) shop had a new guy work on it and me messed up
How often do these switches go bad? Are they safe to replace while the system is charged? Is there another circuit to check? I’m scheduled to bring it back in Monday morning, but I’d like to figure this out since I might not be getting a straight story from the shop. A new switch is $40 at O’Reilly, I don’t have any gauges to measure pressure.