Edmunds Answers

Voted Best Answer

  • avatar zaken1 09/12/10 9:57 pm PST

    That's a tall order for such short notice... This sounds like an electrical short in either the fuel pump or its wiring harness. This can be checked by measuring the fuel pump circuit current draw. But I'm wondering what evidence you have that the relay is overheating; do you actually feel the heat from the relay, or are you just guessing that it is overheating because of the timing of the failures and the recovery? The reason I question this is that another very likely possibility is that the ground connection for the pump wiring harness is corroded or loose. This, too, would lead to periodic failure of the system.

Answers

  • zaken1 09/12/10 9:57 pm PST

    That's a tall order for such short notice... This sounds like an electrical short in either the fuel pump or its wiring harness. This can be checked by measuring the fuel pump circuit current draw. But I'm wondering what evidence you have that the relay is overheating; do you actually feel the heat from the relay, or are you just guessing that it is overheating because of the timing of the failures and the recovery? The reason I question this is that another very likely possibility is that the ground connection for the pump wiring harness is corroded or loose. This, too, would lead to periodic failure of the system.

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