2000 GMC Yukon XL 1500 Q&A

2000 GMC Yukon XL 1500 Question: drain cooling system

How to drain the cooling system in a 2000 Yukon with a 5.3 l engine -
Answer 1
There is a drain cock in the radiator (I think drivers side). There is also a drain plug to allow coolant out of the engine block but my information did not give a location. -