1999 Pontiac Grand Am idle

1999 PONTIAC GRAND AM
90,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SJ098
  • MEMBER
  • 1 POST
Car runs great but occasionally has a high idle after driving, anywhere from 1200 to 2000 rpms. This problem is becoming an everyday event. had mechanic check the computer and no errors were found
Mar 6, 2010 at 7:08 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Clean out the idle air control valve and test the throttle position and manifold absolute pressure sensors.
Mar 6, 2010 at 7:18 AM
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