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Thread: Engine appears to be running very hot- help

  1. #16
    kencav is offline Banned
    Automobile(s): 2009 CTS-V Radiant Silver/Ebony Auto
    Join Date
    May 2009

    Re: Engine appears to be running very hot- help

    Hans i am starting to think the same thing- that i don't have a 160 tstat and appropriate tune- only explaination

  2. #17
    Z06ified is offline Cadillac Owners Fanatic
    Automobile(s): 2010 CTS-V Thunder Grey, Manual, Ultraview, Recaros, Wood
    Join Date
    Feb 2009
    Long Island, NY

    Re: Engine appears to be running very hot- help

    The engine is designed to run at 190. Not sure why you guys are trying to mess with it. 190 was hot for a 1957 Bel Aire. 190 is considered cool for a modern engine. Running hot today is 220-230.

    The bigger issue is when the cooling fans kick in, rather than the t-stat. I don't like the factory setting for the fans, which has them kick in pretty hot. So an aftermarket tune for lowering the temps the fans kick in is beneficial.


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