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CVT Temperature

41K views 88 replies 16 participants last post by  pboglio  
coolant temp is exactly fine. I only added cvt fluid to replace what was lost installing the cooler. I used a Hayden 677 cooler and a beehive with the extra barbs. these temps are really high with not even much load
Did you add fluid to fill the cooler as well? When adding a cooler, you add total fluid capacity to the system. If you do not increase the total amount of fluid to account for the cooler and associated lines, the amount of fluid in the pan will be too low.
 
My juke is a 2011 with the cvt dipstick and it was showing ok on that. But if cvt fluid were a little low, does that result if these high temps?
Could be. Fluid may not be circulating, creating air pockets and hot spots. If you did not bleed the air from the cooler and fill it with fluid before installing it, it may be full of air, making it basically worthless. That cooler is a great design for efficiency, but it is built like a radiator with multiple smaller tubes going between two main tubes, rather than a single line going back and forth with fins attached to it-- it needs to be full of fluid and not air to work. Is it mounted higher than the transmission (making it hard to bleed)? Also, transmission fluid is the primary heat transfer fluid-- the less of it you have the less capacity it has to absorb and transfer heat.