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hard starting
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  1. Duramax Second Generation: 2004.5-2005 (LLY)
    This just started recently. Will start when cold. Once it gets to operating temp if I shut down for say 5 min it won't start. I had it towed last Friday cause it wouldn't start. When it got dropped at my house it started hard but it started. I changed the fuel filters. Still not the way it...
  2. Medium Duty Trucks
    Hello, I have a 05 duramax C4500 bucket truck I've changed #1, 7,and 6 injectors, New fuel head and filter, added a inline electric fuel pump, prime buld stays hard when the pump is on. But the truck will not start without me putting a gas rag over the intake. Once started I can work all day...
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