no fuel pressure

Asked by Tony Jan 05, 2020 at 01:33 PM about the 2002 Ford Explorer XLS 4WD

Question type: Maintenance & Repair

2002 explorer, no fuel pressure, new fuel pump, has power to pump, the relay
has one hot wire and one hot wire with the key on. Not sure where to go from
here.

3 Answers

27,570

Make sure battery has a full charge and battery cables and connections all good? I always check multiple issues, have you? Engine cranking, you have spark at the plugs, gasoline engine? You have fuel injector pulse, engine cranking? If you missing everything, check for rpm signal? I haven't looked up info on your security system? Something to think about. Any applicable trouble codes? For control side of relay, right side in diagram, that bottom wire, the computer grounds that in order to energize relay. You can also see the inertia switch, something to check? good luck

1 people found this helpful.
60

What about ground? Do you have two grounds? You should have one that has somewhere near 5 volts, two grounds (one to you level gauge and one to your pump) and for 3 seconds you should get 12 volts.

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