Does not want to start cold at all?

Tiny
WESMMJ0222
  • MEMBER
  • 1997 MERCURY MOUNTAINEER
  • 5.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 177,613 MILES
When it does start, I can't apply too much gas because it will start to choke and shut off and backfire in the intake.
Monday, March 13th, 2023 AT 12:11 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
This sounds like low fuel pressure but to be sure let's go over this guide and run the test. You can get a fuel pressure gauge test kit from the local auto parts store for cheap or free. Here is a guide to help you step by step and the instructions in the images below for your car. It could be a clogged fuel filter as well.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

and

https://www.2carpros.com/articles/how-to-change-a-fuel-filter

This video will help:

https://youtu.be/wi6kzRjk5to

Fuel system pressure should be between 201-310 kPa (35-45 psi).

Check out the images (below). Please let us know what happens.
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Tuesday, March 14th, 2023 AT 10:48 AM

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