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allison transmission

Discussion in 'GM Powertrain' started by thw, Jul 21, 2012.

  1. thw

    thw New Member

    Ihave a 1999 gmc top kick with a cat engine and a wtec111 allision trans ,it has codes for opens in shift coil circuts but all wireing checks out good also tried another pcm from another truck still has problem
     

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