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2004 Chevy Optra when stopped at a light the car idols funn

Tiny
SCOTTY23
  • MEMBER
  • 2004 CHEVROLET OPTRA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 60,000 MILES
Seem since weather started getting cooler every time I am waiting for light to change car idols funny and sometimes it stalls, what is the cause?
Monday, November 9th, 2009 AT 8:00 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Has the check engine light come on? There are several things that can cause this. Without an trouble code, it becomes a guessing game. THat is why I asked about the light.

Also, have you checked to see if there are any loose, damaged, or disonnected vacuum lines?

Finally, my gut feeling is the problem is coming from the ambient temp sensor. However, as I mentioned, that is a guess without the light coming on. Does the problem happen regardless of engine temp?
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Thursday, November 12th, 2009 AT 8:11 PM
Tiny
SCOTTY23
  • MEMBER
  • 2 POSTS
There is no engine light that goes on and it seems to do this even if the car is cold or warm.
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Monday, November 16th, 2009 AT 12:39 AM

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