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Transmission Cooler
Posted by everyman (more from everyman) on Fri, 17 Dec 1999 18:32:37
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00 

I mentioned my concerns about the smaller fluid capacity 
automatic transmission cooler that replaced the leaky oem cooler.

To rephrase the question:

given that fluids (including automatic transmission fluid) expand 
when heated, and 

given that the transmission case design is not very large by volume 
on the saab 9000t 1988 compared to other designs using similar 
transmissions,

therefore, was the transmission cooler system and cooler lines 
also designed to act as a expansion chamber for heated auto trans 
fluid (in the same way the radiator has an expansion tank)?

I would like to determine if, by using a small displacement cooler 
system, I have changed the total volume capacity (Just like if the 
radiator expansion tank were busted and dumping coolant all over 
the ground and not syphoning back into the radiator). And what 
negative effects this might have on the transmission (overheating, 
burning of trans oil, not enough fluid available for the torque 
converter, etc.)

-Al
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