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Rogue One »
https://forums.nicoclub.com/rogue-one-u185971.html
Mon Mar 02, 2020 2:09 pm
PalmerWMD is partially correct, some models do have an aux cooler on the CVT. While I can't speak for the Muranos, the base model Rogue's do not have one, so it's possible your base model Murano may not have one.
You could have a CVT flush done by any mechanic familiar with CVT's (it's not necessary to have the dealership do this), but there's no guarantee this will fix the problem. Given the details you've provided your CVT may be on it's way out.