Car starts but it will shut off at a stop light?

MADIANNA25

MEMBER
2004 MITSUBISHI ENDEAVOR
3.8L
V6
4WD
AUTOMATIC
245,000 MILES

My car will start and run fine until I come to a stop or a red light. If I turn the air conditioner on it will roughly idle and won't shut off at a stop.

Sunday, May 14th, 2023 AT 9:50 AM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
43,070 POSTS

It sounds like you have a vacuum leak, or the throttle body needs to be serviced.

Here are three guides to help us fix the problem:

https://www.2carpros.com/articles/troubleshooting-rough-idle-in-your-cars-engine-7-common-causes-and-how

and

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

and this guide is only used when the engine is cold.

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

Please go over these guides and get back to us.

Car starts but it will shut off at a stop light?

1 Reply

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