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  1. General Discussion
    2004.5 LLY Sierra 2500HD with 165k miles Lately the truck has been bogging down after sitting at a stop light and when I go to take off it'll just blow white smoke. I have to put it in neutral whomp on it, it builds some pressure and puffs out white smoke and eventually the truck will blow some...
  2. 07.5-10 LMM Duramax Powertrain
    Hi - I have learned a lot from you folks and I hope someone can help me understand what my truck is doing. My truck does not coast. It always seems like the transmission is braking. Not a lot but when I let off the gas there is a noticeabIe drag. I have had the truck a year and have put...
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