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Why would a 1996 Pontiac Bonneville's heater only blow hot air regardless of the thermostat?
The heat valve is stuck open.
Why would a car heater only blow warm air when on high heat setting?
Could be, low on coolant, stuck open thermostat, plugged up heater core, faulty temp blend door actuator,
Why would a 2000 Saturn heater only blowing warm air?
it is a heater. heat. it blows heat. warm air
Why does your heat in your car only blow on high?
Because the resistor between the heater swithch and the heater motor is not functioning. Usually mounted on, in or near the heater enclosure. Its a common repair, and can be done by the do-it-yourselfer.
Why would a 2001 Chevy Blazer heater only blow cold air?
Low coolant in the system. Defective heater control valve. Clogged heater core.
Why would a 96 Taurus wagon heater only blow when running at high RPMs and cool down when idling?
it has a partially clogged heater core.replace the heater core
How will the heater react if the heater core is stopped up?
Your heater will blow cold air only.
Why would a heater only blow out heat when set to max?
Sounds like the blower motor resistor has gone bad. This is sometimes located behind the lower dashboard in the area of the glove box.
What would cause the temperature control to not work on a Taurus - Sable?
I have a 1997 Ford Taurus that would only blow cold air, I replaced the thermostat and no heat. We flushed the system from a ford dealer no heat. Had to replace the heater core plenty of heat now. Other possibilities are: * a malfunctioning temperature blend door * Plugged heater core See "Related Questions" below for more
Why doesn't heat blow out floor only?
the heat blows out the defrost when it should blow out floor vents only
What would cause a 98 dodge 1500 4x4 heater to blow luke warm air?
Any heater that only blows luke warm air isn't getting warm or hot water to the coil. This sounds like a problem with the thermostat not closing, and allowing the engine to heat the water properly for the heater.
Why would heater only blow hot air when you turn the temp switch down Replaced temp switch and still does it?
A restricted/plugged heater core can do that. Try flushing the heater core.
