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.
Mar 12, 2023 at 5:11 PM
does not want to start cold at all?
1997 MERCURY MOUNTAINEER
WESMMJ0222
- MEMBER
- 1 POST
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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.
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.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Mar 14, 2023 at 3:48 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.