Question about 1988 Pontiac Bonneville

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I have had the fuse to the fuel pump blow so i replaced the pump and it still does it . so i unpluged the pump and the fuse still blowes

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The problem is not the pump but in the wiring. The sensor is connected in series type(remember in school -- series and parallel) and thus is being fed higher current and/or voltage from the battery. Its the wiring which is clamped together. Examine by tracing both leads to the battery. Its insulation must have melted and come in contact with another wire which caries higher current. The fuel pump gets activated the moment you turn the ignition key 2 notches, i.e., the dashboard lights starts glowing and thus turns on the electric circuit in which the pump(fuel) is an essential gadget. So check the wiring thouroughly including the ignition key terminals.........................sodeep

Posted on Oct 02, 2009

Testimonial: "i have thought about that and i have replaced two wires from the fuse box to the pump so i guess it is the other way to the battery like you say thank"

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The fuel pump relay may be causing the fuse to blow.

Posted on Oct 02, 2009

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