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excessive revving with AC on??

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Old Sep 15, 2000 | 10:24 PM
  #1  
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CG
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From: Pittsburgh PA
excessive revving with AC on??

91 RS 305 TBI, engine revs excessively when AC is on it jumps between 500 and 1000 rpms every few seconds, any ideas??
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Old Sep 16, 2000 | 01:46 AM
  #2  
Colin 86&87 IROC-Z
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i thought the compressor kicked on and off as needed, which would also put more/less load on your engine at idle... just a thought... btw: my IROC has 86,000 miles and when my AC is on it shakes my car pretty good and i notice a loss of power, I can also hear it... just for comparison's sake.. the AC compressors on our cars aren't the best made ones in the world

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'86 IROC-Z 305/auto with no cat, performance chip, shift kit, and 4.11s
'87 IROC-Z factory loaded with every option, 84,000 miles

Webmaster: www.IROC-Z.org
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