Replaced fuel pump, still have problems.

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06-23-2005, 10:13 PM

Skull Leader

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Join Date: Sep 1998

Location: Skull-1 revival

Posts: 455

Replaced fuel pump, still have problems.

Nearly ran out of gas 2 weeks ago.

Made it to a gas station, put a few bucks in. Ran fine, then began having problems. Replaced fuel filter a week ago.

Didn't solve the problem.

Replaced fuel pump with brand spankin new Walbro an hour ago. Primed it a few times. I heard it come to life loudly.

Ran great in park for 5 minutes. So I went to get 9 gallons to make sure I had plenty. I was driving back home, and Skull-1 went dead again. Tried to prime, no sound from fuel pump.

Never had an SES light through any of this. Could there be junk in the fuel lines? What's my next step?

06-24-2005, 05:18 AM

slopokrodrigez

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Join Date: May 2003

Posts: 2,275

Re: Replaced fuel pump, still have problems.

Measure fuel pressure when you prime it either with KOEO or use the fuel pump prime connector. If no pressure, measure voltage at the connector for the fuel pump located just ahead of the axle.

06-24-2005, 05:32 AM

Nostang 96z

Registered User

Join Date: Sep 1998

Location: Newark, DE.

Posts: 458

Re: Replaced fuel pump, still have problems.

Sounds like the fuel pump relay went bad. If the pump is not priming then it is electrical. If a relay goes bad it could have the symptoms you are describing. The PCM triggers the relay that triggers the fuel pump. Relays are pretty cheap and easy to fix too.