dual control damper needs replaced how do you change it
short circuit in the circuit
In most cases when a vehicle heater that has been working properly in the past begins to blow cold air the cooling system is low on coolant. It could also mean that your heater core is clogged. A good coolant system flush might take care of this, otherwise you may have to have it replaced.
blow back or blow-by is pressure that builds up inside the engine causing oil to be blown out of vent,oil stick,oil filler cap, or into air breather.. Causes of blow-by ---- Bad PVC valve (Positive Crankcase Ventilation ) Worse case is worn piston rings or cylinder walls - engine needs to be rebuilt. http://en.wikipedia.org/wiki/PCV_valve
The flute vibrate when you blow air across the embrochure, causing the air to vibrate inside the flute which causes the sound to come out the end of the flute.
with any no heat complaint the first thing to check is going to be the coolant level. then make sure the vehicle is reaching proper operating temperature and that the thermostat is not stuck open or anything. from there check and see if both of the heater hoses are getting hot, those are the coolant hoses going into the firewall towards the passenger side of the vehicle. if one is hot and the other is cold that means you have a restricted heater core. you can try to backflush the heater core by taking a garden hose and connecting through the outlet side of the heater core and spraying out the inlet side. if that does not work you will have to replace the heater core. hope that helps.
The heater may blow cold air instead of warm air due to issues such as low coolant levels, a malfunctioning thermostat, a clogged heater core, or a faulty blend door. These problems can prevent the heater from properly warming the air before it is blown into the car.
you would have to see a mechanic about that problem
heater will not blow on a 1996 ford contour
if the heater does not blow out warm air change the setting.
The heater does not blow air because it emits infrared rays that have heat molecules within them, thus releasing heat, not blowing it. A heater does not blow air becasue there is no moving air source within the heater. The heater emits infrered rays that cause heat to slowly flow out of the heater.
Your heater may be blowing cold air instead of warm air due to issues such as a malfunctioning thermostat, a clogged air filter, low levels of coolant, or a problem with the heating element. It is recommended to have a professional inspect and repair your heater to resolve the issue.
MaybeYou may have it on "auto" not off check all switches off You may have a faulty selector switch. Also some vehicles always blow heat even with the heater off.
Your heater will blow cold air only.
Definitely. answer yes the mouse has probaly also chewed thru wires causing a short
coolant level could be low not letting it circulate through the heater core, causing it to blow cold. Also, if the coolant level is low it will in turn overheat.
Check the thermostat or heater core
why doesnt my heater work on my1985 BMW