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  1. J

    LB7: Newbie

    Problem is in the message screen check coolant level flashes then engine overheat flashes and temp gauge pegs 260 deg. The check coolant level doesn't always coincide with the engine temp messages. This problem goes away as quickly as it comes. Coolant level is full. Engine is not hot. So, i...
  2. J

    LB7: Newbie

    Hi everyone : i bought my 2001 silverado ls new. It has lb7 duramax, Allison trans 4x4 extended cab. I'm currently at 203,000 miles. I use mobile 1 truck diesel oil and napa gold oil filter and napa gold fuel filter. K&n air filter in a stock air box. I run 265/75r16 tires. Motor is stock...
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