Stalls at idle?

1999 SATURN SL2
157,000 MILES
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BECKYBRATS
  • MEMBER
  • 1 POST
just a couple days ago my saturn started idling wrong first everytime i would stop it would act like it was going to stall. now its idling to high. it will go without me stepping on gas. what's the problem
Aug 3, 2013 at 10:23 AM
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SQM
  • ✓Experienced Mechanic
  • 6,383 POSTS
Hello,

It sounds like you might have an issue with the Idle air control valve.
Many times if the IAC valve is dirty it can have an impact on the idle of the engine.
You can take the valve off and clean it. Usually that takes care of the issue.

Here are couple of helpful articles on how to clean the valve:

https://www.2carpros.com/articles/how-a-idle-air-control-valve-works
https://www.2carpros.com/articles/idle-air-control-valve-service

I have attached the diagrams for IAC valve.

Please let me know of any questions.

Thank you.
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Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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Aug 2, 2021 at 6:17 AM
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