How to change coolant on 2004 chevy silverado (6.6L duramax diesel)?

I am going to need to change the coolant in my truck soon and i noticed that the radiator has no cap. The recovery tank is pressurized and the radiator has a drain plug on it but how would i refill my radiator after draining it? are there any coolant drain plugs on the engine block? If so where are they? and is the coolant refill procedure any diffirent if i drian coolant from the engine block using the drain plugs?



Any help would be appreciated, and please include all the details with your answersHow to change coolant on 2004 chevy silverado (6.6L duramax diesel)?not sure srry

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