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fuel pump not always priming

tubicinator

New Member
Joined
February 28, 2006
Messages
8
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City, State
Nashville, TN
Year, Model & Trim Level
'95 XLT
My fuel pump fails to prime intermittently. Very frustrating because I thought I had the problem fixed with a new fuel pump relay. It was great advice guys, but what's next?

Even with the new fuel pump relay the problem continues. We had a good 20 clean starts then this morning the fuel pump didn't prime again. It worked once this afternoon, though, and failed again on 4 more tries. I jigggled relays and the wire to the inertia switch. My new questions are:

Would a failing fuel pump work intermittently? Might it be the sending unit? What else might it be? I'd like to try everything I can within reason before I pay someone else to replace the fuel pump.
 






I had a similar problem a few years ago. Dealer replaced fuel pump and problem persisted. Problem was the ground railing for the relay. Do a search on here and you'll find it. I just pound the relays a few times and it seems to work. Good luck!
 






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