All is normal except the RPMs has been lowered all of a sudden?
Oct 15, 2022 at 7:44 PM
Low engine idle speed?
2008 CHEVROLET IMPALA
SERENITY 1
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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.
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.
Oct 16, 2022 at 6:06 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.