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· Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
17,631 Posts
It probably is time for overhaul kit and reman converter. The TCM won't set P0740 if the coolant or ATF are under the allowed lock-up temperature, so there is likely an internal leakage/wear problem.
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