A/C issues
08-26-2014, 05:49 PM
#1
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Year: 2000
Model: Cherokee
Engine: 4.0
A/C issues
So my 2000XJ blows decently cold air even on days like today (90+ and muggy)....until I turn it off and back on again. If I stop for gas or to run in a store and start on my way again the A/C blows hot humid air (kind of feels like its coming from directly outside).
When I let the Jeep cool completely it blows cold again.
I got home from work after driving with nice cold air the whole way home today, and decided to try something. I turned off the A/C and immediately turned it back on....hot air again.
No engine temp issues, coolant is full, air blows cold as long as I dont turn it off and bak on so I am assuming the system is charged. Assuming this makes sense, anyone have any ideas?
When I let the Jeep cool completely it blows cold again.
I got home from work after driving with nice cold air the whole way home today, and decided to try something. I turned off the A/C and immediately turned it back on....hot air again.
No engine temp issues, coolant is full, air blows cold as long as I dont turn it off and bak on so I am assuming the system is charged. Assuming this makes sense, anyone have any ideas?
08-26-2014, 07:52 PM
#2
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What do you mean: when you turn it back on, it blows hot air and keeps doing that or does it eventually turn cold again?
08-27-2014, 03:13 AM
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Year: 2000
Model: Cherokee (XJ)
Engine: 4L, 6 cylinder, 190 hp, 225 ft lp torque
It sounds to me like the a/c solenoid or the compressor clutch is not picking up when hot. You should be able to hear the solenoid pickup if it is operating properly. The a/c clutch can be seen engaging and disengaging. Good luck.
08-27-2014, 05:48 AM
#7
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You just agree with everything here now, dont ye...
How about: what's the A/c solenoid actually? Or are we talking about the pressure cute out switches..?
How about: what's the A/c solenoid actually? Or are we talking about the pressure cute out switches..?
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08-28-2014, 03:46 AM
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Year: 2000
Model: Cherokee (XJ)
Engine: 4L, 6 cylinder, 190 hp, 225 ft lp torque
Hey Roler. The a/c solenoid (called a relay too) is found in the fuse/solenoid (relay) box under the hood. It should be labeled on the under side of the cover. When the a/c is turned on, you should be able to hear it click (turn on). When the solenoid turns on it supplies power to the a/c clutch which then pulls in and engages. You should be able to watch the clutch engage and disengage (spin and stop spinning). Good luck. Sorry if I caused confusion by calling it a solenoid instead of a relay.
08-28-2014, 06:30 AM
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09-07-2014, 08:38 AM
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Year: 2000
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Roler: When I turn it back on it blows hot/humid air and stays that way.
Gonna check the relay though. Thanks
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