New fuel pump still will not start? Check fuse and relays are good but still fuel pump will still not come on to start.
Sep 7, 2022 at 3:03 PM
New fuel pump, still will not start?
2003 CHEVROLET S-10
POPEYE064
- MEMBER
- 1 POST
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi,
If the pump isn't turning on, chances are it's an electrical issue. You indicated the fuses and relay are good. Did you confirm power to both?
As far as determining the cause, I attached the diagnostics for the fuel pump electrical circuit. Take a look through the directions and let me know if you are comfortable performing them. Also, let me know if you have questions.
Here is a link you may find helpful as well:
https://www.2carpros.com/articles/how-to-check-wiring
Take care and let me know what you find.
Joe
See pics below.
If the pump isn't turning on, chances are it's an electrical issue. You indicated the fuses and relay are good. Did you confirm power to both?
As far as determining the cause, I attached the diagnostics for the fuel pump electrical circuit. Take a look through the directions and let me know if you are comfortable performing them. Also, let me know if you have questions.
Here is a link you may find helpful as well:
https://www.2carpros.com/articles/how-to-check-wiring
Take care and let me know what you find.
Joe
See pics below.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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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.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Sep 7, 2022 at 7:45 PM
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