2005 gmc yukon cooling system
20

Asked by GuruH3WXL Aug 12, 2019 at 09:17 AM about the 2005 GMC Yukon SLT 4WD

Question type: General

I have a 2005 GMC Yukon 1500 SLT 4 x4.   Most of the time the vehicle temp. runs just a notch below 210.  ( maybe around 190 or so ).
In this hot Texas weather it still runs around this temp and no hotter than 210 even with front and rear ac running on high and the vehicle idiling for extended periods of time.( even at 100 degrees outside ).
But you take a 95 - 100 degree day and you get the vehicle above 70 mph on the freeway and the cooling temp shoots up to 220 and stays there. I don't think this is normal but I need an opinion and a diagnosis please.

2 Answers

F_O_R answered 4 years ago

Water Wetter in the radiator can lower the operating temperatures several degrees.

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