Duramax Cooling System Diagram. 6 nov 30 2016. The coolant flows to the heater core while the engine is running.
Shop fuel system plumbing for the gm duramax 66l 2001 2004 lb7 fuel system. I am not sure which hose i. Show 40 posts from this thread on one page.
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It is important to note that not all instances of coolant loss on these engines is the result of head gasket failure. A low coolant message may be displayed on the driver information center of some 2017 2018 silverado and sierra models equipped with the 66l duramax diesel engine rpo l5p. Engine coolant loss on 2002 2016 gm 66l duramax diesel engines the aera technical committee offers the following information on engine coolant loss on 2002 2016 gm 66l duramax diesel engines. Maintaining your engines cooling system with the proper coolant and additives helps reduce the risk of premature failure of the head gasket radiator water pump and many other key cooling system components.