How do I drain the radiator on a Chevy K2500?

Answer by  TravisUSMC (979)

The drain cock for the radiator will be on the bottom of the radiator, either on the left or right side. Use a bucket or container to collect old fluid. Turn the drain cock until fluid stars coming out. Let drain fully then tighten it before refilling the fluid.

Answer by  rano123 (109)

Depending on the year of the vehicle,there is a drain valve on the bottom passenger side of the radiator. You must screw it clockwise to open the valve.

Answer by  Amber40 (24961)

Not knowing the year of the truck it may differ. Usually there is a drain plug located on the bottom driver's side of the radiator. Open this drain and it will empty the radiator. Pull the bottom radiator hose off and it should drain what left in the block.

Answer by  bikerbojo (282)

Remove radiator drain plug from bottom of radiator. Use a large container to catch the coolant as it is toxic and very poisonous to animals. Replace plug with teflon tape.

Answer by  karthikeyan72 (116)

best thing to do is drop lower rad hose.... fill engine and rad with cleaner, start and allow to get hot then cool off and drain by repeating process, leave lower hose off and flush out with hose... reattach hose and refill.. hope this helps