RPMS KEEP JUMPING FROM NORMAL 600700 DOWN TO 500...

  • Tiny
  • Lina Mcdonald
  • 2006 FORD FUSION
  • 120,000 MILES

RPM's keep jumping from normal 600-700 down to 500 when stopped. What is the problem?

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Thursday, January 31st, 2013 AT 12:40 AM

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  • Tiny
  • Jacobandnickolas
  • EXPERT
  • 68,402 POSTS

Check for vacuum leaks and check the idle air control valve (IAC).

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Thursday, January 31st, 2013 AT 2:43 AM

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