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1999 Ford Explorer Repair Question


Topics covered: Fuel pump, Click, Fuel line.
Mileage: 150,000 miles.

Asked on July 25, 2012

Is my fuel pump bad

Four days ago car wouldn't start plugs fired but no fuel.i swapped relays around and the pcm relay was bad. Replaced it and the car ran fine. Now today it did the same thing, but when i swapped relays it didn't start. Checked the fuses as well and they are good.has spark at plugs.can't here fuel pump cut on.can here relays clicking. Inertia switch is not tripped. No fuel pressure at check valve on fuel line on manifold.
Avatar Asked by Madmav77

Answer

Replied on July 25, 2012

most likely a failed fuel pump if it is running and no fuel at the line

Roy

Tiny Answered by ASEMaster6371 (expert)
24,778 answers provided
Replied on July 25, 2012

Would that cause the pcm relay to go bad.

Tiny Response from Madmav77
1 question asked
Replied on July 25, 2012

i doubt it was. the pump was probably an intermittent failure and then went to a full failure. the pump was most likely the entire issue

Roy

Tiny Answered by ASEMaster6371 (expert)
24,778 answers provided

Replied on July 26, 2012

okay, i want to check the power going to the fuel pump before i drop the tank just to be sure , and isolate the problem. where is the wire harness that goes to the pump and do you know which color wire is what

Tiny Response from Madmav77
1 question asked
Replied on July 26, 2012

look at the color of the wires on the inertia switch. the one going to the back will be the wire.

the connector is by the lr wheel attached to the top of the rail by the side of the tank. i believe it is a 4 wire plug. remember, you will only get power for 2 seconds with the key on.

Roy

Tiny Answered by ASEMaster6371 (expert)
24,778 answers provided