gregp1962

As usual, the heater isn't blowing warm air. The engine was just replaced so I figure that they didn't bleed the heater core. I go to bleed it and it won't bleed.The engine was fully warmed up. I detached the coolant tank and raised it higher than the heater core and pulled the heater hose off enough to allow air out of the small hole in the hose. Nothing came out. So, I pull the heater hose all the way off. Coolant barely came dripping out! Now, the laws of physics say that as hot as the engine was, that coolant should be spraying out of there.

Why does it do that? I had this problem before the engine was replaced as well.

Kris Hansen

There's probably still an air bubble in the block somewhere, or blockage.

gregp1962

So, does it need to be bled somewhere else?

RKA

reverse flush it (disconnect both hoses, and push water into the heater core outlet until you push out the crud stuck in there)

Why was the engine replaced?

Kris Hansen

Probably.

gregp1962

I did the reverse flush last year. Maybe I need to do it more.

Does anyone know if there a valve that regulated the water going into the heater core?

Kris Hansen

There is no valve going into the heater core.