Truck runs rough and shuts off when coming to a stop

1997 FORD EXPEDITION
350,000 MILES • 4.6L • V8 • 4WD • AUTOMATIC
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TTEXPEDITION
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  • 1 POST
While driving truck runs kind of shaky and when coming to a stop truck shuts off.
Aug 27, 2021 at 12:06 PM
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JACOBANDNICKOLAS
  • Experienced Mechanic
  • 110,240 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
Aug 27, 2021 at 3:30 PM
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