Re: Just installed new E40D and won't idle in drive/reverse.
Of course the flex plate and torque converter rotate. They are bolted to the end of the crankshaft. If the engine is running they are rotating.
I think you'll need to get a 0-350 PSI
gauge with a 1/8" NPT thread. Install it in the test port on the side of the trans. Record the pressure in P, R, N, D, 2, and 1 at idle.
Former Ford Automatic Transmission Engineer
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