Low engine idle speed?

Tiny
SERENITY 1
  • MEMBER
  • 2008 CHEVROLET IMPALA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 112,000 MILES
All is normal except the RPMs has been lowered all of a sudden?
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Sunday, October 16th, 2022 AT 2:44 AM

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Tiny
KEN L
  • ADMIN
Yep, this can happen if the throttle body needs service or there is a vacuum leak. here are three guides to help us fix the problem. Also, we should run the codes as well.

https://www.2carpros.com/articles/throttle-actuator-service

And do this guide when the engine is cold only:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

And to get the codes:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over these guides and report back.
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Sunday, October 16th, 2022 AT 1:06 PM

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