Crank no Start after installing new FPDM?

2007 FORD MUSTANG
175,000 MILES • 4.6L • AUTOMATIC
Avatar
DUSTYDAISY75
  • MEMBER
  • 1 POST
My car has a crank no start after installing new FPDM, checked all fuses relayes and tried to reinstall old on still don't start. It has new fuel pump, sender, injectors and fuel rail sensor.
Jul 2, 2026 at 10:34 AM
Advertisement
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Did it not start before and tis is why you replaced the FPDM? I would check the inertia switch reset button first. Also, can you please upload a short video of the engine cranking so I can tell if the engine is in good shape? Here is the location of the inertia switch which is behind the driver side kick panel so you can check it and a video of how to tell which system is failing which is a good starting point so I can help you get the engine running again.

https://www.youtube.com/watch?v=lXLJbuAZ4CE

and

https://www.youtube.com/watch?v=dCjmRL3p4Cs

Push down on the button.
Check out the images (below). Please let me know what happens.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jul 2, 2026 at 2:27 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.