Intermittant AC Cooling

[John Stankiewicz]

2002 Mitsubishi Galant DE Air Cooling. At start-up and driving AC works great for 5 minutes, then shut s off. May turn back on later. If so, it turns back off a few minutes later.

Topic

[Richard Kirshy]

A few possibilities:
Freon level
Pressure switch
Failing compressor

[Chris]

[quote=”stankiewicz43″ post=173028]2002 Mitsubishi Galant DE Air Cooling. At start-up and driving AC works great for 5 minutes, then shut s off. May turn back on later. If so, it turns back off a few minutes later.[/quote] Sounds like an expansion valve or orifice tube that is not working correctly. Check that first.

[mikegreene]

I would try switching a identical fuse box relay into the a/c clutch relay terminal and while driving operate your a/c,if the problem goes away you have found the solution,replace the a/c clutch relay,from time to time these relays have been known to stop working,hence going bad.

[Paul Hartmann]

good idea to check the a-c clutch relay. I know that on a toyota camry, you can just switch the horn relay to “fix” a bad a-c clutch relay. when was the last time you changed the cabin air filter? I just fixed the a-c on my 1995 volvo by putting in a new cabin filter!

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