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Stalls at Low Idle?

Tiny
JOE BREIDENSTEIN
  • MEMBER
  • 2007 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 195,000 MILES
I started having trouble when I came to a stop light where my RPMs drop below 6 or 7 hundred and the vehicle starts to shake and will stall out. Runs fine at higher RPMs.
Thursday, September 7th, 2023 AT 8:15 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

In most cases, this is an issue related to an engine vacuum leak. There are other things such as the idle air control valve that can do it.

Start by checking for leaks.

Here is a link that explains how to check for a leak:

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

Try this first and let me know what you find.

Joe
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Thursday, September 7th, 2023 AT 2:38 PM

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