drain cooling system on 2000 GMC Yukon XL 1500

How to drain the cooling system in a 2000 Yukon with a 5.3 l engine

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
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.