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Thread: Fuel problem

  1. #1

    Default Fuel problem

    I have a 1987 Suburban, I have replaced every sensor I can think of and 3 other mechanics can think of. It is dumping fuel like crazy. I tried new injectors, they dumped even worse than the old ones. So far I have replaced or rebuilt- Coolant temp sensor, 1-oxegyn sensor, Throttle position sensor, fuel pressure regulator,fuel pump relay, and the injectors.

    Any help would be apprecaited.

    Thanks
    Tom

  2. #2

    Default

    Ignition modules control, to a degree fuel. I didn’t see that.

    Fuel pressure regulator. More of a problem usually in vehicles with higher fuel pressure. 80s trucks ran under 15 lbs of pressure if I remember right. TBI anyway.

    Just some quick thoughts before I go out and plow some more snow.

    Technology is great, when it Works,
    And one Big Pain in the Ass When it Doesn’t.
    Detroit Iron Rules, All the Rest are Just Toys.
    94 GMC Burban, 5.7L (350), 4X4, Auto
    86 GMC Burban, 350, 2 WD, Auto
    79 GMC pickup plow truck, 400, Full time 4X4, Auto
    86 Pontiac Fiero SE, 2.8L, Auto, only mid engine American car
    See a Pattern yet?

    15 year GM assembly line worker.

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