Transmissions and Drivetrains
Transmission Fluid
Cadillac DeVille

How do you fix 1991 Cadillac Deville transmission leak?

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2005-11-26 00:38:52
2005-11-26 00:38:52

If it's leaking from the pan gasket, just replace the pan gasket. If it's leaking between the engine and transmission, you have probably developed a leaking front seal. There isn't really much you can do for that except to replace the seal. Drop the trans, slide the torque converter out, replace the seal and put the trans back. Many transmission shops will tell you that once you have a front seal go it won't be long before the transmission fails. It's all a crap-shoot, so take your chances. If the leak isn't too bad you can try some Trans-X transmission leak stopper. It might give you a few more months service out of the transmission, but you'll probably need some major work soon.

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