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My 86 740T has coolant in the transmission fluid. The car has been experiencing a whinning noise coming from the front of the trans area when I try to accerlerate. The noise begins once the car is up to normal operating temperature. As the the noise gets louder I begin to experience a progressive power loss. It does have normal turbo boost otherwise. Finally the car will have no power and won't go in forward or reverse.
I can turn the car off for a brief period and it may drive somewhat OK. I recently put in a radiator,radiator hoses, trans cooler line, expansion tank, water pump, cam belt, vacuum hoses. Is it a bad radiator, trans. What kind of things would cause that on this model.
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