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05 yukon xl oem thermostat temp

Discussion in 'General Chevy & GM Tech Questions' started by Pikey, Mar 18, 2013.

  1. Pikey

    Pikey Moderator Staff Member ROTM Winner 1000 Posts

    does anyone know what the thermostat temp for a 05 yukon xl 5.3L flex fuel is? I have looked at some part stores and seen 187 F, 186 F, 180 F, 190 F. Any ideas which one is correct?
    Last edited: Mar 18, 2013
  2. SupplySgt

    SupplySgt New Member

    Most vehicles have a stock thermostat temp of either 190 or 210. I would lean towards the 190 based on the options you have to choose from. I want to say my Vortec 350 was 190 but it's been almost 4 years since I've owned it so I'm not certain on that.
  3. Pikey

    Pikey Moderator Staff Member ROTM Winner 1000 Posts

    I did some research today. It looks like it calls for a 187 degree t-stat.

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