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Duramax Loses Power

Discussion in 'Chevy Trucks' started by ohiogreenworks, Dec 15, 2010.

  1. ohiogreenworks

    ohiogreenworks Senior Member
    Messages: 381

    Any ideas on why the 03 dmax loses power while driving? No power brakes, steering, no gas pedal. Pump on the framerail also starts making an awful noise but I don't understand why it would make the truck die. Truck has half tank of fuel but it acts like it ran out. Any ideas?
  2. GSORK

    GSORK Senior Member
    Messages: 128

    www.dieselplace.com . Try asking the question here.I have found a lot of good info at this site.
  3. woodchuck2

    woodchuck2 Senior Member
    Messages: 304

    X2, check the fuel lines too. They were noted to swell closed and restrict fuel flow.