1991 New Yorker, 3.3L

Discussion in 'General Motoring' started by Car hog, Jul 2, 2022.

  1. Car hog

    Car hog

    Jul 2, 2022
    Likes Received:
    I have no pressure on the fuel rail. I have shorted the fuel pump relay switch contacts, no 12vdc at the pump's connector. -issue 1, power interrupted between Relay and Pump.

    I ran 12vdc from the relay 12v side of switch contact, directly to the pump's connector. No pump, 12.58v supplied, ground is good. Hit the tank with a hammer, supply drops to 9.99v, and connector's wire is warm. -issue 2, suspect pump is locked-up and pulling too much current.

    Issue 1 is Primary interest: where is the harness connector, that feeds the pump? It is NOT in the LR qtr. Panel...the pump's wiring comes up into the cab, through a centered rubber doughnut behind the back back-rest, and ties into a main harness run just under what one diagram labels as the Rt. Side body connector, on the left-side. IMG_20220702_094949699.jpg IMG_20220702_095016124.jpg IMG_20220702_095043211.jpg
    Car hog, Jul 2, 2022
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