It's 2004 Sebring 2.7L , this morning the water canister, pressure side was boiling all the time. Heat gage no more than a quarter and fans were working all the time. when driving or pressing gas paddle, temprature drops.

any ideas?

 

It is really strange. when car is in park, temprature goes up to quarter. when pressing gas and maintain 1200rpm, temprature drops.

Looks like pump has lost pressure?
Or thermostat stuck closed ?

Canister is any way boiling even when engine is cold, if there was an air stream inside the pressure section of the canister.

 

Could be a blown head gasket. Might want to run a compression test.

 

I thought too, but coolant doesn't smell gas or carbon + I have no overheat + when I press more gas temp drops.

 

Ok , I performed visual test and found that there is a pressure inside cooling system and causes to false boil of overflow container.

I'm not sure if this is a head gasket issue because the more gas I press, temprature drops. Engine all the time is cool, no overheating issue.

No lack of power. engine idles normally.

sounds like blocked system ?

 

T-stat is OPEN

 

TNtech , are you sure?

could you please explain why you think it is a t stat ?

by the way engine has only 70k miles ...