Fuel pump wiring

Tiny
WILLMONT
  • MEMBER
  • 2002 FORD F-250
  • 5.4L
  • V8
  • 145,789 MILES
Is there suppose to be a ground wire going from fuel pump to frame or body? It's like I have an extra wire?
Sunday, May 2nd, 2021 AT 4:50 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

At the fuel pump, there are only two wires. One is a power supply and the other is ground. The ground is a black wire.

I attached a pic of the connector below. It is a 4 pin connector, but only two of the pins are used. Let me know if that helps or if you have other questions. Also, on the connector side, check pin 3 for continuity to ground to confirm it is the correct pin.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know what you find or if you have other questions.

Take care,

Joe

See pic below.
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Sunday, May 2nd, 2021 AT 9:08 PM

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