2003 Ford F-150 fuel pump fuse blows?

2003 FORD F-150
185,000 MILES • 2.5L • V6 • 2WD • AUTOMATIC
Avatar
HARPER605782
  • MEMBER
  • 1 POST
After replacing the fuel pump, my truck will run for a 2 to 3 weeks but will die on me cause by a blown fuse under the hood. What is causing this problem.
Jan 31, 2015 at 8:35 PM
Advertisement
Avatar
WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
The fuse blows because the circuit is being overloaded so first it depends which fuse it is and what it powers. It could be something in the fuel pump circuit causing it or they may be other components in the circuit that are being powered by that fuse that you are not aware of yet. Overloads can be very difficult to isolate sometimes.
Feb 1, 2015 at 6:18 AM
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,837 POSTS
  • ASE Certified Mechanic
You need to change out the fuel pump relay and if the problem continues you have a defective fuel pump or you pinched the wiring when you reinstalled the fuel tank. Here is the location of the pump relay. Check out the images (below). Please let us know what happens.

Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Aug 2, 2024 at 7:49 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.