Fuel pump-no power

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Sep 26, 2003 | 07:25 PM

Ed_B1

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Fuel pump-no power

Help,
My Bronco was running fine, and just died one day. The fuel pump was not going on, so I replaced the FP relay, the EEC power relay, and the fuel pump inside the tank. It still will not go on. I checked the inersia switch, fine.

I connected a bat. directly to the fuel pump connection and the pump came on, so the pump is working. I also jumped the inersia switch wires and the pump did not come on.

Somewhere between the relay and the pump is the problem.

Any suggestions?
Thanks.

Sep 27, 2003 | 07:54 AM

Ed_B1

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any help?

Sep 28, 2003 | 02:19 PM

Ford_Six

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From: The Big, Oregon

What happens when you ground the oil pressure switch? Does the pump run when the key is in the crank position? Try disconnecting the starter lead from the solenoid (if it's mounted on the fender), and hold the key in the crank position.

Nov 20, 2003 | 03:40 PM

44MAG_Gunslinger

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I am having the same problem. Tested cut-off switch. Fuel relay is Clicking. Just no power to the pump at anytime. (even during cranking) Tested voltage across pump=0
Also Did your truck shutter before this problem occured? Mine did while traveling about 50 mph
Help.

Nov 20, 2003 | 07:20 PM

Ed_B1

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YES! My truck shudders at 45-50 mph. Did before this problem and still does. If you find out the fix, please let me know.

Nov 20, 2003 | 07:22 PM

Ed_B1

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44MAG_Gunslinger
Did you check the fusible links next to the batery? That is what my problem ended up being. They looked fine on the outside, but when I shook them while the key was on crank, the pump fired up.