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The transmission started to kick out of drive for no apparent reason.now I have a oily substance in the raditor

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Very likely that the oil you have found in the radiator is transmission fluid. There is a built in transmission cooler that is inside one of the radiator tanks. If the cooler fails, trans fluid will get into the coolant and when shut off, coolant can migrate into the transmission. You need to replace the radiator and then drain and replace the trans fluid. You cannot drain all the fluid (pan removal only gets rid of about half) so it's best to do that once using a low priced but proper grade of fluid, run it for about an hour, then drain again and re-fill with a better quality fluid. (also not a bad idea to use some lucas trans conditioner in there).
Hopefully, you haven't damaged the transmission, otherwise you may be looking at a rebuild.

Posted on Dec 31, 2010

Testimonial: "Thank you.that's pretty much what I exspected"

  • ericschnidri
    ericschnidri Jul 11, 2014

    Great answer,If ANY coolant

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