Random reving

2005 PONTIAC MONTANA
140,000 MILES
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CNDNAVY
  • MEMBER
  • 1 POST
The van drives completely fine, however at random times (while driving and at rest) the idle will jump to around 5000rpm. After a few moments it will come back down to normal idle rpm. This is completely random and doesn't happen everyday. I have checked the cable adjustments and the cable seems fine. Is there a sensor or a setting that would cause this problem?
Mar 22, 2012 at 3:50 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
try cleaning the throttle plate on both sides as well as the iac hole. see if that helps.
Mar 22, 2012 at 4:20 PM
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