2001 Pontiac Grand Prix Causes Your Rpm Gauge Jump Back Forth

2001 PONTIAC GRAND PRIX
165,301 MILES
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ANONYMOUS
  • MEMBER
  • 1 POST
what causes your Rpm gauge to jump back and forth
Feb 28, 2013 at 7:34 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
Are there any engine performance problems aligning with that happening?
Feb 28, 2013 at 7:38 AM
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