OK, go figure...This AM headed to work, started her up, selected reverse, waited for delay , what the hey, no delay . Totally normal behavior. That's gotta be the valve body. Plan- watch for a few days

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.