In Park or Neutral the engine revs REALLY high

1989 CHRYSLER FIFTH AVENUE
78,000 MILES
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RIVELLATION
  • MEMBER
  • 12 POSTS
(Sometimes) When I put my car in Park or Neutral the engine revs REALLY high (no Tach but I can tell by the sound) but as soon as I put it in Reverse or Drive it idles normally. Also during the time that the engine revs high there is a smell of hot rubber, but not burned.
Mar 27, 2012 at 9:38 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be a problem with the idle air control motor, throttle plate not fully closing and a vacuum leak
Mar 27, 2012 at 10:08 AM
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