90 GT fuel pump failure

90mustang5.0 · September 2nd, 2011, 09:03 AM

Hey, I have a problem with my fuel pump not turning on and priming the system. The fuse, and relays are fine, and the inertia switch is still pressed down. It's a Walbro 190 lph pump. It has done this to me 3 separate times, once a year ago, then a few days ago and now yesterday. I think it might just be like a loose wire going down to the tank or something. Is there anything special I should look for?

wizwrath · September 13th, 2011, 10:21 AM

I would check for voltage in the wiring, starting at the fuel pump all the way to the ECU (which I think is the problem), while doing it, twist and shake the wiring too, Also check all the connectors for corrosion etc.

September 2nd, 2011, 09:03 AM	#1
90mustang5.0 Look Ma! My First Post! 1990 Mustang GT Join Date: Sep 2011 Location: Florida Posts: 1 iTrader: 0 reviews	90 GT fuel pump failure Hey, I have a problem with my fuel pump not turning on and priming the system. The fuse, and relays are fine, and the inertia switch is still pressed down. It's a Walbro 190 lph pump. It has done this to me 3 separate times, once a year ago, then a few days ago and now yesterday. I think it might just be like a loose wire going down to the tank or something. Is there anything special I should look for?

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September 13th, 2011, 10:21 AM	#2
wizwrath Regular Join Date: Jul 2009 Posts: 86 iTrader: 0 reviews	I would check for voltage in the wiring, starting at the fuel pump all the way to the ECU (which I think is the problem), while doing it, twist and shake the wiring too, Also check all the connectors for corrosion etc.

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