Replace the TCM, Don't an overhaul. Its not the transmission at this point. You need to be able to talk to the TCM before you do anything else. After the controller has been replaced,then ck the sensor with a scanner to see if they are working.
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Master Chassis tech, Transmission
Automatic and Manual and Suspensions.
Also repair front and rear diffs and all engine
repairs inc Diesel. A/C repair too.
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