Engine sometimes shuts off at low idle?
Jan 3, 2025 at 12:10 AM
Intermittent issue of the engine shutting off at low idle?
2000 CHEVROLET IMPALA
DARRELLBARKSDALE
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This is common, when the throttle bore needs to be serviced or the engine as a vacuum leak. Also do you have a check engine light on? If so, we should run the codes to see which codes are stored. Here are two guides to go over which should help fix it:
https://www.2carpros.com/articles/throttle-actuator-service
And use this guide when the engine is cool:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
I would replace the IAC motor as well. Check out the images (below). Please let us know what happens.
https://www.2carpros.com/articles/throttle-actuator-service
And use this guide when the engine is cool:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
I would replace the IAC motor as well. Check out the images (below). Please let us know what happens.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Jan 3, 2025 at 12:10 PM
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.