1999 Dodge Ram "doesnt heater control valve work" Questions

...heater when i step on break ac control switches are vac opperated already changed check valve since this might be a vacuum issue i don't know if its related to the idle issue, also have high fuel ...

...heater doesnt work only cold air comes out the air cond works fine the enginecoolant is new, the engine doesnt overheat. Either your heater control valve is not properly operating or your heater core ...

heater control valv doesnt operate.feels like control valve lever on dash is not hooked up to any thing. fan , defrost, vent etc lever above does work and blower does work but only getting cold air. ...

...doesnt solve problem faulty switch Helloi had same problem , changed the heater control valve ,but ticking noise still stays,  i tried to set on warm , its ok, on cold or in middle it starts ...

heater doesnt work i have a 2002 mitsubishi galant and the heater doesnt work i heard before a noise coming like behind the dash but now when i try to turn the heater on i dont hear that noise and now

...doesnt heat up at heater core when its very cold. There is a vacuum operated control valve in the heater core lines at right rear of engine-the passenger side of engine. If it is closed, no warm ...

...heater doesnt work does that mean the heater core is out? change out your thermostat, heater core will leak inside of car if damaged and another thing the water pump is what circulates the coolant ...

heater in my 2000 astro van blows but doesnt heat. is it electric or controlled by the heater core? if it's heater core controlled is there a shutoff valve I should be looking for? The dash heat works

Heater wont blow heat but A/C works fine.... Hi I have a 1999 Grand Cherokee Limited 4.7 and my heat went out completely. At first it was jus the passenger side but now it doesnt heat at all. A/C ...

...doesnt The heater control valve is located on the passenger side rear of the engine. It has a vacuum line hose that opens and closes the valve. Remove the vacuum line hose, start the engine with the ...