1. Welcome to PlowSite. Notice a fresh look and new features? It’s now easier to share photos and videos, find popular topics fast, and enjoy expanded user profiles. If you have any questions, click HELP at the top or bottom of any page, or send an email to help@plowsite.com. We welcome your feedback.

    Dismiss Notice

93 454 cutting out under load

Discussion in 'Chevy Trucks' started by In2toys, May 26, 2011.

  1. In2toys

    In2toys Senior Member
    Messages: 319

    93 gmc 3500 w 454. When I get on the throttle or am towing a trailer the engine makes a popping sound like it's cutting out. I've replaced the fuel filter & am waiting for my mechanic to get back from vacation to put a fuel pressure tester on it to test the fuel pump. He thinks it's the pump. Any thoughts?? thanks
  2. mcwlandscaping

    mcwlandscaping 2000 Club Member
    Messages: 2,557

    That fuel pressure check would be on my initial list of things to do for sure!
  3. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    Start with a pressure test.
  4. In2toys

    In2toys Senior Member
    Messages: 319

    yea he didn't have time to do it before he left for vacation last Friday... if it wasn't such a pain to either pull the bed or drop the tank, I'd just wing it to get the truck running better again. But I don't want to pi$$ money away either if it's not the pump...