Removing Intake On 2003 8.1l Suburban.

[mwitte]

I assume you have to drain coolant but I cannot find the drain petcock. ANything else special that needs to be done to do this? I already have all the connectors marked and disconnected just trying to drain the radiator so I can pop it off.

[8.1HD/ALLISON]

Probably need to pull the lower radiator hose. Don't think they had a drain on the radiator.

[renegadeking]

check both sides of the radiator. my drain is on my right side, (if you are standing infront of your truck looking at the engine.) it is a long hose that is clipped on the side, you un clip it and point it at the ground, and at the bottom of that is a little dial, turn that and it will drain the rad. hope that works.

 

also check the manual it must have something in it

[mwitte]

Yeah I found it. Made a pretty good mess next time it would be helpful to jack on side up. Speaking or lower hoses, I wanted to replace mine since I am in there and it looks like something has been rubbing one spot. Its a real crazy looking hose with a coulple of extra pieces to go to the heater, and I dont see how its removed from the radiator. It has spring clamps on the engine and heater but I see no clamps on the radiator side. Suggestions?