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Chevy Nova Bleeding Transmission

Q. I'm having some problems with the powerglide in my 68 Chevy Nova, 230ci. When it's parked or on short hops around town there doesn't seem to be any problem and I don't detect any leakage of fluid, However: On the road, at speed, and after 15 min. or so it starts dumping fluid like crazy. I have changed the filter and there was very little sediment in the pan.

Any thoughts?


A. This is weird, I have never heard of this one before. In this case the only way you can find out where the leak is is with direct visual inspection. When it starts to leak, you have to look at it to see where it is coming from. It would seem to me that a line would leak all the time, same with a gasket or seal. Maybe there is a crack in the case that could start leaking when it gets hot. A shop might be able to simulate the conditions by running the car at speed on a lift and watching it as it starts to leak. Other than that, I don't know what else to tell you.

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