drhess06259

does anyone know what the valve looking thing on the firewall above the headers is called? I know it has coolant running through it, but not sure what it does, any help is appreciated.

krikke_s2000

it's the valve that adjusts the amount off water
running tru the heater in the car

grtz kristof

drhess06259

can it be moved? or is it really needed? can i just put a new coolant line in with no valve?

krikke_s2000

without the valve the heater in the car will always be on the highest temp

grtz kristof

drhess06259

krikke thanks for the help. i could deal with that as long as it doesn't affect the ac controls also, like blow hot and cold air when running the ac, I don't drive the car in winter anyways, so I rarely use the heat as it is.

krikke_s2000

if you remove the valve the heater is always going to blow hot even with ac on

grtz kristof

drhess06259

ahh that is no good.. thanks again for all the help

thetz99

That's a coolant air purge high point. You need it to purge ALL the air from the coolant system when you do a flush...if your heater doesn't get hot, you didn't get all the air out.

Has nothing to do with controlling the heater temp btw, lots of bad info above.

krikke_s2000

the coolant air purge high point is above the engine in the midle of the car the heater controle valve is above the header

grtz kristof

Slows2k

Bad info has been posted by you as well.

The valve does control coolant flow to the heater core. Air in the cooling system will cause overheating, and no heater /defrost operation.

Coolant flow to the heater core is shut off by the valve for AC operation.