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Revs at between 1200 & 1500rpm when idle

Tiny
JAIMEHO
  • MEMBER
  • 2002 HOLDEN COMMODORE
  • 210,000 MILES
My VX commodore series 2 sometimes revs at between 1200 & 1500rpm when idle, then shoots up to 2000rpm when I put it in park. Seems to happen intermittently, when the car has been running for a little while.
Friday, January 27th, 2012 AT 8:25 AM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Clean and test the idle air controller, throttle body/plate and the throttle position sensor-
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Friday, January 27th, 2012 AT 8:31 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
V6 or V8? Have you had a scan done yet?
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Friday, January 27th, 2012 AT 7:39 PM
Tiny
JAIMEHO
  • MEMBER
  • 2 POSTS
No I havent done a scan because I don't own scanning equipment. So I have cleaned the throttle body, the IAC, the MAF sensor. I also noticed that when I put it in cruise control the speed keeps going up until I brake.
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Tuesday, January 31st, 2012 AT 12:25 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Possibly a faulty idle control motor, you local mechanic should be able top do a scan, he may charge a small fee fore this service.
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Tuesday, January 31st, 2012 AT 9:37 PM

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