I have searched on the site and was not able to find a DIY for changing the coolant in a H2. I took a quick peek under the truck and did not see the radiator drain. Does anyone happen to know where the drain is located? Thanks in advance for your replies.

 

I know this is an old post, but does anybody have a write up for the Vortec 6.0L Coolant change, especially pertaining to bleeding the system after the change. Does it come with a bleeder screw somewhere or do you guys just let the engine run and warm up with the radiator cap open to clear any air with the front of the car sitting higher than the rear?

We should really have a DIY section for the H2 like the Flash Offroad H1 site. Cheers, Indy.