1984 Chevy C20 Fuel Pump

Discussion in 'Chevy C/K Truck Forum' started by 84ChevyC20, Apr 28, 2009.

  1. 84ChevyC20

    84ChevyC20 New Member

    Ok, so we just replaced the fuel pump on my friends truck(1984 Chevy C20 350/TH350), and now it idles perfectly, but if we even touch the gas pedal it dies instantly. Anyone have any ideas as to what could be causing this?
  2. unplugged

    unplugged Epic Member 5+ Years 1000 Posts

    Low fuel pressure? Or maybe a faulty accelerator pump circuit. Pull the air cleaner and see if you can see gas spray into the carb when you work the accelerator. At idle you are probably pulling enough gas to keep the engine running. The carb has an accelerator pump gives the carb a shot of gas to smooth out the change from idle to running.

    Also check for a vacuum leak.
  3. Evan

    Evan New Member

    You change the fuel filter?

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