A/C help??

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cdferry

Junior Member
Joined
Dec 16, 2011
Posts
17
Reaction score
14
Ram Year
1996
Engine
5.9 360
My A/C seems to be stuck on defrost and it sounds like the compressor is still running a while after i turn the key off.
 

Mopar1973Man

Senior Member
Joined
Aug 22, 2011
Posts
825
Reaction score
21
Location
New Meadows, Idaho
Ram Year
1996, 2002
Engine
1996 Dodge 1500 (V8-5.9L) & 2002 Dodge Ram 2500 (5.9L Cummins)
Pretty simple...

Check your vacuum lines going back to the cab on the passenger side for cracks or leaks. The HVAC will default to DEF mode when the vacuum system fails as a safety measure.

As for the compressor it should stop instantly after the key is shut off. You might be hearing the freon balancing back out equalize in the system which is normal.
 
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