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hesitating

  1. 04.5-05 LLY Duramax Powertrain
    New here and need some help. I have a 2005 silverado with 130K miles on it. It's a stock truck with no tuner. I haven't changed anything on the truck. Here's my problem. When the truck is cold it does fine. When it warms up is when it notice the problem. When maintaining my speed at...
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