Torque Converter Lockup Problem
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So my dad rebuilt my 4L65E recently and we put a ProTorque 3200 stall converter in it, but now when cruising on the highway the converter will not lock up. We tried putting power to the solenoid with a scan tool to lock it up and it still didnt. We also replaced the solenoid which didnt fix it. Anybody have any ideas as to what could make it not be locking up?
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