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add a transmission fluid cooler?
i have a '12 camry 4cyl with about 70k on it. i recently installed a pioneer headunit along with idatalink maestro, this gives me gauges for things like RPM, coolant temp, trans fluid temp, and more. now i sometimes question the accuracy of the gauges because it says 63% throttle when my foot is to the floor but i think it is generally accurate for most gauges
the ECM was reflashed at 15k miles for the torque converter shutter and i have had the dealer do a drain/refill of the trans fluid at 43k and 68k. i have had zero issues with shutter although i do sometimes have hard shifting at certain speeds/situations like stop and go traffic ect.
my headunit has a transmission fluid temp gauge and during most drives it reads in the 180s-190s but i have seen it spike to 205 after rough traffic conditions and warm weather. when it is this hot you can feel the transmission is not too happy and is more likely to shift a bit harder or have a slight kick when i go on/off the throttle
i live in NJ near philadelphia and we get all 4 seasons from hot/humid summers to cold winters. roads i travel can be anything from stop/go traffic up to cruising at 80 on the highway. from the factory it has a stand alone transmission cooler where it pumps the coolant to/from the radiator and the transmission fluid is warmed up and supposedly cooled.
i am wondering if adding a aftermarket transmission cooler is a good idea to keep the temps down, the only thing i am hesitant about is how long will the fluid take to get up to temp in the winter months. i generally like to keep critical components like that as stock but its only april and the temps going that high do concern me
2012 Camry SE 2AR-FE, my 4th toyota
ASE certified parts specialist