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Help needed for installation of transmission cooler on 2018 Traverse

32K views 56 replies 15 participants last post by  (None)  
The 2018 Traverse comes with a 180 degree thermostat...... not sure how Water Wetter works in this application, to "Cool" the engine.
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I know this is an old thread but I have been researching trans temps as much as possible lately. Anyway, I am pretty sure this is not the OE temp thermostat. No doubt a stant aftermarket is available in 180 but I bet the OEM temp is a more emissions friendly 195 or so and you will probably trigger a CEL with a 180 stat unless you tune the vehicle. This was the case on m 2008 C6.

I'll try and find the OE actual part but I wager the OE thermostat begins to open around 195 +/- 5 degrees.