2003 Chevy Avalanche stalling

2003 CHEVROLET AVALANCHE
105,000 MILES • V8 • 4WD • AUTOMATIC
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PJOY47
  • MEMBER
  • 1 POST
when I trunon any of the A/C orheat options the RPM's drop and the car stalls.
Sep 30, 2008 at 2:17 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Has the check engine light come on? Have you checked for vacuum leaks? When the AC compressor turns on, it places a drag on the engine, so something as simple as a vacuum leak could cause the engine to die.

Let me know what you find.
Joe
Mar 23, 2009 at 6:25 PM
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