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    leonard37's Avatar
    leonard37 Posts: 2, Reputation: 1
    New Member

    Nov 10, 2013, 05:40 PM
    What would cause a fuel pump to not turn on a 89 toyota pickup
    Fuel pump will not turn on no power going g to it
    leonard37's Avatar
    leonard37 Posts: 2, Reputation: 1
    New Member

    Nov 10, 2013, 05:43 PM
    What would. Cause fuel pump not to come on on a89toyota pickup
    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
    Uber Member

    Nov 10, 2013, 05:49 PM
    Fuel pump relay? Fuse? Broken wire? Bad ignition switch?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,758, Reputation: 5596
    Uber Member

    Nov 10, 2013, 05:58 PM
    Bad fuel pump fuse, fuel pump relay, ECM, ignition switch. Try cleaning contacts to the fuel pump fuse and fuel pump relay first.
    kitch428's Avatar
    kitch428 Posts: 1,428, Reputation: 152
    Ultra Member

    Nov 10, 2013, 09:57 PM
    When I used to see a lot of the 89 PU's being towed in due to FP inop, the first thing I'd find was a burnt efi fuse. The problem turned out to be a o2 sensor harness burnt and shorted to the exhaust pipe.
    But that was only one of a few different FP issues I remember. That harness runs through the body under the pass seat and shorts can develop anywhere all the way up to the fuel rail.

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