The car will shut off when letting off the accelerator pedal?

GEOSTEW25

MEMBER
2017 CHEVROLET EQUINOX
4 CYL
4WD
AUTOMATIC
120,000 MILES

Car will cut off when letting off the gas and breaking for a stop.

Idles rough at red lights.

Headlights dimming with rough Idle.

Electric Windows (all 4) roll down fine but now will roll up an inch and stop. Then you let go of the button and press again and roll up an inch and stop rinse repeat util about midway then it rolls up normally.

I had the Battery and Alternator tested and both work.

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,513 POSTS

Please start a new thread for the window issue, we only handle one problem per thread. For the engine stalling at idle this is common when the throttle body needs to be serviced. Here are two guides to help us fix the problem and I have included images below to help you fix your car or see what needs to be done.

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

and

https://www.2carpros.com/articles/stall-at-idle

Can I ask if you have a check engine light on? If so, we should run the codes.

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

Please check the images below to see how to do the service. Check out the images (below). Please upload pictures or videos in your response to the problem so we can see what's going on. Please read the guides before you begin. And can I ask if the engine has been tuned up? (new spark plugs)?

Images (Click to make bigger)

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Friday, January 19th, 2024 AT 11:50 AM

GEOSTEW25

MEMBER
2 POSTS

Thanks for the quick reply. No, there isn't a check engine light. Is there any way possible that the windows are not a separate issue but the whole thing is something to do with the electrical system where the power dips out enough to cause it to stall and the windows suddenly not working properly.

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Saturday, January 20th, 2024 AT 9:31 AM

KEN L

MASTER CERTIFIED MECHANIC
47,513 POSTS

Not really, if the alternator and battery were checked and are okay then the car has the correct amount of voltage. You should do a CAN scan which can help see if there are any other codes in the system.You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Please go over these guides and get back to us.

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Sunday, January 21st, 2024 AT 9:42 AM