Suzuki: TRANNY COOLER, automatic transmission cars, colorado mountains


Question
QUESTION: Hi David,

Just wanted to know if its ok to install a tranny cooler to a 95 16v 1600 Vitara, will it affect the performance of the engine? tranny?, I live in the Philippines and the normal temperature during day time is around 30-34 degrees celcious, and I think would even be higher during bumper to bumber trafic.

Thanks,

Mike

ANSWER: Most automatic transmission cars have a trans cooler built in to the bottom of the radiator.  If you want to put another one in line, it won't hurt at all in your climate.  Where I live, in the high Colorado mountains, 3.5 kilometers is a normal mountain pass and -20C is common, it would be necessary to put a thermostat in the line to avoid over cooling the transmission.  It's fine if you want to.

---------- FOLLOW-UP ----------

QUESTION: Thanks for the answer, I would really like to add an additional cooler, but I cant find any documentation on where the output and input lines of the tranny are, I've seen the PDF file on where the  fittings were but did not indicate which was in and which was out, and is there a special procedure to position /install the cooler, some said that from the tranny out to the cooler the pipe should connect to the lower pipe fittings on the cooler and that the line going back to the tranny should be connected to the higher pipe fitting on the cooler, with that in mind since the original tranny cooler is inside the radiator, should I position the new tranny cooler this way:

* tranny to new cooler to radiator back to tranny
* tranny to radiator to new cooler to tranny

after the connection/installation before I reconnect it back to the tranny should I bleed the line and if so how do I go about it.

Thanks,

Mike

Answer
On some radiators, the cooler lines attach to fittings on the bottom of the radiator, on others, on the side of the radiator.
Just hook it up so the flow goes through one cooler, then the next (in series)  As far as which is first, it really doesn't matter, the idea is to drop the temp.
As to placement of the aux cooler, most of the time I've seen them in front of the radiator.