RonB1001

Where is the petcock on a 2011 express van? I want to flush the system and try to seal the heater core.
Any advice appreciated

Twscarp

Usually, the petcock is on the driver's side bottom edge of the radiator.

RonB1001

I can't even see it. I do see the lower radiator hose though. it's almost reachable from the top,but I see the clamp and am not sure how to release it. I'm thinking I can remove it from the radiator end and drain and flush it that way.

Twscarp

Hi, when you're looking at the pictures above the lower hose is on the passenger side, the petcock is on the driver's side of the radiator.

RonB1001

Thank You

Rednucleus

Why not change the heater core while you 're at it?

RonB1001

That's the plan