Only Overdrive/Reverse works on A4LD | Page 2 | Ford Explorer Forums - Serious Explorations

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Only Overdrive/Reverse works on A4LD

You asked about the TPS effecting the transmission, here is what the manual says:
-The TP sensor is a potentiometer mounted on the throttle body. It detects the position of the throttle plate and sends this information to the PCM as a varying voltage signal.
-This information is used in determining 3-4 and 4-3 shift schedule and TCC engagement.
-Symptoms include abnormal shift schedule, TCC does not engage, TCC cycling.

Did you clean the cooler lines and cooler well? Crap from the old trans will mess up the new one.