Fuel issues

I_FLY_DS

MEMBER
2000 FORD EXPLORER
102,000 MILES

I have a 2000 ford explorer v8. I turn the key on and the fuel pump runs with engine off. Weird, secondly the engine wont start but will fire when I force feed fuel in to intake.
third I have hooked up obd2 scanner and it wont retreive data? Help"

5 Replies

JDL

MECHANIC
16,098 POSTS

What your hearing may be the initial prime? When you first turn the key on, no crank, the pump will run for a few seconds, then stop if no rpm signal. Use a gage and check fuel pressure, check for injector pulse.

If your code reader won't work, check pin 16 at the datalink connector for voltage.

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Wednesday, April 17th, 2013 AT 2:20 PM

I_FLY_DS

MEMBER
3 POSTS

Yeah normally the prime lasts about 3 seconds. The pump never stops running though. And I get a reading of 64 psi at the fuel rail

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Wednesday, April 17th, 2013 AT 3:19 PM

I_FLY_DS

MEMBER
3 POSTS

Pin 16 also shows voltage

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Wednesday, April 17th, 2013 AT 3:23 PM

JDL

MECHANIC
16,098 POSTS

I can't tell what's going on? Have you tried a different code reader?

Maybe the fuel pump relay is hung-up or a faulty computer. Can you check for injector pulse?

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Thursday, April 18th, 2013 AT 11:04 AM

JDL