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Join Date: Oct 2004
Location: Portland, OR
Posts: 13
automatic transmission leak

After my car sits for couple of days there is a puddle of transmission fluid on floor directly under the pan.

For short sits (one night) there seems no leakage, longer sits the leak appears.


I recently had a transmission fluid change with gasket but the leak does not seem to be from that.

any suggestions?

thanks
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1991 BMW 325IC
Old 02-06-2006, 07:25 PM
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Join Date: Nov 2004
Location: Atlanta
Posts: 746
Drivr,
It seems that perhaps the old transmission fluid got thicker with time made it more difficult to seep through the seals. The fresh fluid would likely be thinner, making it easier to leak through either the front or the rear transmission seals.
I had something similar, but with the differential fluid instead. Everything used to stay dry and once I replaced the differential fluid with fresh one, it started leaking, causing me to change the differential seals and o-rings.
Old 02-07-2006, 07:06 AM
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Join Date: Oct 2004
Location: Portland, OR
Posts: 13
what is the difficulty and or time required for the replacement of the front/rear seals.

sounds as if it may be difficult. I will search site and see if anyone has done this.

thanks!
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1991 BMW 325IC
Old 02-07-2006, 07:34 AM
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Location: Atlanta
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If you plan on doing it in your garage, then I would not envy you. You would have to pull the transmission to gain access to both the front and rear seals.
Old 02-07-2006, 09:31 AM
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