Off the top of my head I do not know for sure. While parts failures do occur with new parts the odds are so remote it’s barely worth considering.Īt some point back in the late 90s I think it was Ford decided to start using a fuel pressure sensor on some or all models. I would be suspect of someone laying the blame on a new pump.

That Nissan truck ran several more years before dying just shy of 400,000 miles. Our solution, given the age of the vehicle, was to just abandon the factory wiring and deliver electricity on a new line. I had a case once where my problem was in the circuitry, not the pump, on an older vehicle. Best to put an inline fuse in your jumper line. If you get real adventurous, you could even tap into 12 volts somewhere and be ready to connect that to your test rig, and if the test light shows no power reaching the pump, then just connect your 12 volt jumper and see if that starts the pump.

If you can patch in a wire where he wants you to test for 12 volts, run that to the front seat, attach to a a test light or even just a bulb, then run to a good ground, you’ll be able to see at a glance when you have 12 volts reaching the pump, and when you don’t. Cigroller has a good thought, but there may be an easier way to monitor this if you are inclined to do some real simple wiring.

2004 explorer fuel pump location