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Transmission leak. Diagnosis from one mechanic. Leaking seal and crank shaft crack. Can car be driven with this problem?

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Are you sure he didn't mean drive shaft? The crankshaft is inside th engine. If the leak isn't too bad and there's no vibration from whatever is cracked. it should be ok to drive. Just keep checking the transmission fluid so it doesn't run low.

Posted on Dec 29, 2010


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Hi there. I’m not exactly clear which transmission seal you are referring to, but no matter, the first thing I’d check-out is the breather system on the transmission. Every transmission builds-up pressure when being driven and if the breather is blocked; the internal pressure within the transmission is strong enough to force oil out the weakest areas – that of course being shaft seals. So firstly check out the breather system to ensure it’s not blocked, it might save you having to replace a seal unnecessarily. Hope this help, Scottech

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I have a 96 Subaru Impreza, Is smell like burning oil everytime I drive, I have taken it to mechanics and they say something related to my timing belt seal and cam and crank shaft, can that be it although...

Your car is 13 years old. It is possible for the seal to actually wear a groove into the crank shaft or cam shaft end. Which ever is protruding and has a seal. It used to happen on all the older G.M. cars. (60's 70's). Usually with over 100K miles. You may be leaking just enough for the wind to blow the oil back onto the exhaust while driving. I've seen it, done it, and repaired it. One way to tell is to look for tiny oil spot on the lower part of the rear bumper or lower part of trunk lid. Oil sometimes will blow back that far. Now, even if they change the seal, it may not stop the leak. Back in the day, you used to be able to buy a "Sleeve" kit for the crank. It slides over where the groove is so the seal can make contact on an smooth, level surface.
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Good Luck and I hope this helps.

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