Truck runs rough and shuts off when coming to a stop

Tiny
TTEXPEDITION
  • MEMBER
  • 1997 FORD EXPEDITION
  • 4.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 350,000 MILES
While driving truck runs kind of shaky and when coming to a stop truck shuts off.
Friday, August 27th, 2021 AT 7:06 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
Hi,

This could be the result of a few things. First, is the check engine light staying on when the engine is running? If it is, have the computer scanned. Here is a quick video showing how it is done:

https://youtu.be/InIlnsjOVFA

I realize most people don't own a scanner, but oftentimes, a parts store will do it free of charge.

Next, an engine vacuum leak can also cause this type of problem. Here is a link that explains how to check for leaks:

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

let's start with that. If you have it scanned, let me know what codes are stored.

Take care and let me know what you find.

Joe
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Friday, August 27th, 2021 AT 10:30 PM

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