Transmission Diagnostics

The 7.3L is a rugged and reliable motor. But sometimes, there is more to be desired in the automatic transmissions that mate to it. The E4OD and the 4R100 were given the task to put the 7.3L’s power to the ground from 1994-2003. We have seen a lot of them come through over the years and here is what we have learned about there operating characteristics and what causes them to fail.

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