3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

No 4th or TCC Lock up

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Old 12-24-2010, 02:53 PM
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No 4th or TCC Lock up

My truck will not shift to 4th or lock the TCC. This was one of the latest issues I have had after installing a DTT shift kit. DTT fixed on of my previous issues, but this one just started. Does anyone have any idea what this could be? I have no DTC codes showing up. Could this be the OD harness in the VB?
Thanks,
D
Old 12-24-2010, 05:18 PM
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Accumulator spring atop the valvebody? Maybe it broke?
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