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When my car sits idle in park it reving up and.

Tiny
ANONYMOUS
  • MEMBER
  • 2006 NISSAN ALTIMA
  • 313,000 MILES
When my car sits idle in park it reving up and down up and down fro 3 to 0 over and over like I am pressing on the gas but I am not. It does this until I put it in gear then it stops and goes back down to 0. What is wrong
Wednesday, November 28th, 2012 AT 12:30 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The idle control has a fault and it could be due to vacum leaks, a fault with the IAC. If the Malfunction Indicator Light is showing retrieve the trouble code.
Ensure coolant level is correct in radiator.
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Wednesday, November 28th, 2012 AT 1:09 PM

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