Thread: AC Issue
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Old 07-04-2011, 02:59 PM
Wild Willy Wild Willy is offline
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Join Date: Jul 2011
Location: Houston, Tx
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Vehicle: 2010 Ram Crew Cab SLT
Trim Level: SLT
Color: White
Engine: 2008-20?? 287ci (4.7L) PowerTech V8 310hp 330lb/ft
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Originally Posted by ramvan2500 View Post
You may have to get your A/C System Evacuated and Charged with new Refrigerant. I would recommend that they put new Oil in the Compressor as well, either it be ester or PAG.
My bet is you have a vacuum leak as a result of a broken vacuum line. Your symptoms are classic. It's usually a simple/cheap fix once you find the problem. Does anything not work, such as your cruise control? A broken vacuum line right at the cruise control was a notorious problem on mid to late (96/97/98) Rams Dunno about later models, but I'd put money on a broken vacuum line or bad check valve. Just my 2

The check valve is under the hood inline with the small hard (brittle/easily broken) vacuum line that runs through the firewall into the cab. One (of several) purposes of this check valve is to hold the AC/Defroster air damper shut during amild or normal acceleration (less than full throttle). Your complaint is a common one and a bad check valve or broken vacuum line will 99.9% of the time be the cause.

Last edited by Wild Willy; 07-04-2011 at 03:48 PM.
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