I need some advice on tracking down a transmission ( a PDR stage 1 47RE) problem please guys. My truck will not lock up in O/D unless I lift off the throttle and sometimes, it takes several attempts before it finally locks. I changed the oil (ATF+4) and filter but this did not affect the problem. Occasionally I also experience a reluctance for "D" and "R" to engage when starting off. When the truck is running there is NO slippage in the system and the temps are normal even towing a heavy load. This problem has only just started so, where do I start looking?
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