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no clue?

  1. WELDUR

    Engine running rough and transmission not shifting right

    My 03 avalanche 5.3 is running horribly and not shifting properly. In the past 2 days I've replaced the cam sensor and crank sensor with it still doing the same thing. I'm not throwing any knock codes. I have almost zero acceleration and it acts like it don't want to shift. When I pull it into...
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