C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

93auto transmission leak

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Old Apr 3, 2011 | 04:31 PM
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Default 93auto transmission leak

need help on phantom trans leak. I rebuilt the tranny, everything works well, but it leaks after a 6 mile test drive. The leak appears to be coming from the side with the cooling lines. I put it back on blocks and let it idle in park, no leak after 15 minutes of idle speed operation in park. Any ideas?

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Old Apr 3, 2011 | 04:51 PM
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If the pan looks dry, it probably is one of the cooling lines to the fitting connection or the fitting to the transmission leakingl. Might need to drop the exhaust to tighten things up. If you remove the fittings going to the tranny, use teflon tape or pipe sealer.
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Old Apr 3, 2011 | 04:54 PM
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That is what was wrong with mine, it was the part that went into the trans itself not the second thread that holds the line in. Teflon tape was the cure
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Old Apr 3, 2011 | 08:43 PM
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Found it. It was the TV cable rubber bushings. It was torn.
Thanks for the replies.
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