What is your question?
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What is your question?
My 2019 at4 Sierra 1500 is overheating while driving It goes past 210 and fluctuates up and down And I'm not hauling any load
What makes this problem better or worse?
Makes the problem worse when I'm driving uphill
How long has your 2018 GMC Sierra 1500 had this problem?
Just bought the truck a month ago 0 miles off the lot and that's when it began
2 Replies
Check the coolant level first. You want to do this when the engine is cold. Top off if needed. Use this link to find a good shop near you. https://repairpal.com/repair-shops Alex