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Thread: rough idle with a/c
04-05-2010, 07:53 PM #1
- Join Date
- Mar 2010
rough idle with a/c
When I have the A/C on the engine has a rough idle. Also, when any fan setting is on, the A/C compressor cycles on and off.
Is this normal?
Is there anyway to determine if a compressor is on it's last legs?1988 C1500
Old and Beat Up!
I love it!
04-05-2010, 10:34 PM #2
If the compressor cycles it is low on freon...Still Loyal to GM after all these years...:shocked:
2006 Impala LT 3.5L
2005 Silverado WT small cab/longbed 4x4 4.3L V6
1999 Grand Am 3.4L in TX w/ our youngest
1993 GMC Jimmy 4.3L 4 door 4x4 'Ole Rusty' - 'SOLD'
1988 S-10 small cab/longbed HT3.4L Crate Engine
1970 Nova 250 I-6, factory 3 sp floor shifter.
1968 Chevelle 'Nomad' Wagon 250 I-6 w/ 3 on da' tree.
04-07-2010, 10:38 AM #3
Also, the pressure could be too high. If there's a clog somewhere in the lines, the pressure will go up rapidly, and the pressure cut-out switch on the condenser will cut power to keep from hurting the compressor.
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