Diesel Place : Chevrolet and GMC Diesel Truck Forums - View Single Post - LML: 2011 LML thermostats bad?
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Old 12-18-2018, 11:22 AM   #14 (permalink)
Diesel Head
Join Date: Dec 2005
Posts: 701

Just dealt with this on my 2012 right at 100k mi. New thermostats and coolant flush and temps are back where they should be.
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