Shuts off after driving around for about 40 minutes

2000 CHEVROLET MONTE CARLO
107,984 MILES • 3.4L • 6 CYL • 2WD • AUTOMATIC
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CHADBROK
  • MEMBER
  • 1 POST
After riding around for like 40 minutes it hesitates then goes to normal, but if i continue to drive around after 40 minutes it will eventually shut off. it’ll start right back up but when pressing on accelerator it stutters. The video is what is doing after 40 minutes of driving and I got it park idling.
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Jun 16, 2021 at 8:45 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,244 POSTS
Hi,

If the check engine light isn't on, then I would suggest trying to service the IAC (idle air control valve) and the throttle body. The IAC is responsible for maintaining engine idle speed. If may be slow in reacting causing this to happen.

Here is a link that discusses servicing the IAC:

https://www.2carpros.com/articles/idle-air-control-valve-service

Here is one for the throttle body:

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

Try that and let me know what you find or if you have other questions.

Take care,

Joe

Jun 17, 2021 at 3:37 PM
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