Vx heater not working

[kyriacandro]

Hey guys all of a sudden the heater in my berlina is only blowing cold air i checked the tap it moves on and off when you press cold or hot inside the car but it does have dine corrosion around it do you think it's clogged or not working or something ?

 

[Nut Kracker]

Just because it moves, doesn't mean it working.
I'd replace it.

 

[kyriacandro]

Changed the tap sadly i still don't think it's working

 

[Dayvo]

Undo the inlet and outlet hoses to the heater and flush it out with the hose .

 

[kyriacandro]

You mean hose into the heater not into the block ?

 

[Dayvo]

You mean hose into the heater not into the block ?

Yep thats right

 

[kyriacandro]

Should i put the house straight into the heater with the car and heater on because nothing at the moment is working ?????

 

[Nut Kracker]

Try this with the engine OFF.
Take the hoses off the engine and shove a hose up one and see if you get a steady flow out the other.
Hold the heater tap open or bypass it.

 

[kyriacandro]

Does it mean anything that my top radiator hose is squeezing in. Could the thermo be stuck open?

 

[Nut Kracker]

Bad radiator cap.
It's not drawing coolant from the overflow reservoir.
Therefor it's creating a vacuum.