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Engine will stop running then it catches on again?

Tiny
NEKGIB
  • MEMBER
  • 1999 MERCURY MOUNTAINEER
  • 4.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 176,000 MILES
Just started to cut in and out, feels like it will stop running then it catches on again. I nursed it home for about 5 miles and it did stall once. I started it up after about an hour and it was ok for alittle while then started cutting in and out. Could it be computer/mass air flow/relays?
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Tuesday, January 27th, 2015 AT 4:36 PM

2 Replies

Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
This can be a fuel problem or a electrical problem. You will need to take to have the codes checked at the parts store and while you are the rent a fuel pressure gauge. Then ck. The fuel pressure when acting up. Then come back we can help u.
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Tuesday, January 27th, 2015 AT 5:50 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Yep this can be many things included the MAF sensor, I would run the codes which this guide can help with and if a code comes up for the MAF I would replace it.

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

Here is the MAF sensor location. Check out the images (below). Please let us know what happens.
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Saturday, September 7th, 2024 AT 10:02 AM

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