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Why does my car stall when I take my foot off the gas

Tiny
MICHELLE ELLIOTT
  • MEMBER
  • 2005 PONTIAC GRAND AM
  • 258,000 MILES
It will not stay running. It starts and will stay running as long as my foot is on the gas as soon as I take my foot off the gas it stalls. What could be the problem?
Thursday, April 20th, 2017 AT 11:44 AM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,207 POSTS
Hello,

It sounds like you can have one of two problems happening, first you could have a vacuum leak or the IAC motor could be not working.

Here are a couple of guides that can help you get the problem fixed.

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

and

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

Please let us know if you need anything else to get the problem fixed.

Best, Ken
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Thursday, April 20th, 2017 AT 12:38 PM
Tiny
MICHELLE ELLIOTT
  • MEMBER
  • 3 POSTS
Thanks, I will have that checked.
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Thursday, April 20th, 2017 AT 12:45 PM
Tiny
MICHELLE ELLIOTT
  • MEMBER
  • 3 POSTS
Could a sensor be out?
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Sunday, April 23rd, 2017 AT 7:54 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,207 POSTS
Yes, to know for sure you must run the codes, here is a guide on how to

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

Please run this test and get back to us so we can continue helping you.

Cheers, Ken
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Monday, April 24th, 2017 AT 9:19 AM

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