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  1. 01-04.5 LB7 Duramax Powertrain
    Hey guys, I need some help diagnosing this strange new thing that my 2002 LB7 is doing. As the temps began to drop below freezing I started plugging in my block heater. It would start up fine, no smoke at all. But then upon the first acceleration of the day it’ll blow a decently big cloud of...
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