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- Feb 6, 2004
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- Salem, IN
- Transmission
- Automatic
no they don't.....my '97 had no such aux cooler....it just had the one in the radiator.....and mine has the tow package....All the old ones have it too.
everything else you posted Will i agree with 110%......you can't over cool a tranny.....espically an automatic....
i am in the process of installing a second aux tranny cooler on mine....
as of this coming Saturday mine will look like this:
Tranny-->Radiator-->Aux Cooler #1-->Aux Cooler #2-->Tranny.....
IF by chance the radiator has a t-stat in it so it wont flow tranny fluid until it gets to a certain temp, then it will hold the fluid in the radiator until it reaches that temp.......THEN it will take that 190* fluid and pass it throught the 2 aux coolers before hitting the tranny, thus cooling it back down to less than 190*........
also, IF you have a tranny temp gauge, you really need to put the sensor in the tranny port on the side.....there is a little 1/8" NPT plug just behind the shifter linkage (i know for sure on 5R55E's, but not on other transmissions) that is used for testing the main pump pressure. You install the 1/8" NPT sensor in place of this plug, then run your sensing wire from the gauge to the sensor.....and bada boom you are reading ACTUAL tranny temperature, not fluid temperature..........