bronco blues

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Apr 12, 2006 | 05:18 PM

downsouthhustler

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bronco blues

will some 1 please help me ? i have a 88 broncoII that i have just put a new motor in(2.9) and i can't get the fuel pump to work. and its a new pump and i even tested it so i know it works.. please help me or tell me if i could run a wire that will turn it on when the key switch is on.

Last edited by downsouthhustler; Apr 12, 2006 at 05:23 PM.

Apr 12, 2006 | 05:31 PM

mrshorty

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From: UT

Do you have a wiring diagram? The fuel pump wiring isn't too complicated: B+ -> relay -> inertia switch -> fuel pump -> B-. Relay is opened/closed by the main computer. I suspect either you forgot to hook something up, or there's some other break in the circuit. In either case, it shouldn't be too hard to track down with a voltmeter and a wiring diagram.

Apr 12, 2006 | 05:43 PM

downsouthhustler

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i checked the inertia switch and it was not tripped. i tripped it then reset it also checked where the fuel pump plugs in with a volt meter it has power..

Apr 13, 2006 | 10:25 AM

mrshorty

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From: UT

Is the ground connected? Good ground at the chassis?

Apr 13, 2006 | 10:32 AM

Aggie05

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From: new braunfels ,tx

i would try shortys advice, ive had some trouble with ground issues check that first.

Apr 13, 2006 | 03:39 PM

Desert Dog

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Fuel Pump

Check for voltage at the wires were it goes into the fuel pump,I had a short at the rear of the frame above the fuel tank and also a fualty connection at the top of the tank wire connector.