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Engine shakes when AC is on

Tiny
JCAMPB2
  • MEMBER
  • 2004 CHRYSLER PT CRUISER
  • 87,000 MILES
Light came on, was hesitating at traffic lights while stopped in drive, when driving car does not do this. Then last few time I filled up with gas it hesitated, then cut off, had to keep foot on gas when stopped to keep running. Shakes when ac is on?
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Wednesday, February 8th, 2012 AT 8:38 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

You might have a dirty Idle Air Control valve.
A dirty IAC valve can cause the car to have poor idle.
You can first try to clean the IAC, in most cases after cleaning the issue goes away.

Here is an article of how to clean the IAC 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 IAC valve location and procedure for your reference.

Please let me know of any questions.

Thank you.
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Wednesday, July 28th, 2021 AT 4:26 PM

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