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What if your 2004 silverado temp gauge runs above normal in town and the heater blows cold but runs at normal temp on the freeway and the heater works fine What is the cause?
thermostat
What might cause a 2002 Chevy silverado to overheat?
In order of probablility: low coolant level, faulty thermostat, plugged radiator, damaged water pump, collapsing radiator hose.
Why the electrical thermostat of a electrical heater can be damaged?
By overheating which will cause a change in the thermostat materials construction.
Can running the heater on high in the car cause the thermostat to stick?
No.
On a 1998 Chevy Blazer what would cause the heater to blow hot air then cold and occasionally back to hot?
Either a faulty thermostat or you have a low coolant level.
2003 Chevy Silverado and you only get your heater fan motor to blow air when you turn it up to 4 or 5 What would cause this?
Defective blower motor Resistor Pack. Replace it.
Can a thermostat cause your car's heater to blow warm air?
Yes.
Why heater won't get hot in 2000 Chevy Camero?
it could be a few things, but id check the thermostat as its probly stuck open, or your heater core could be bad but that will cause a water leak in your car and its a pain to change. or you can check your heater hoses for sludge.. because 50/50 anti freeze tends to cause that
What causes a knocking noise in the heater box in a 1991 Chevy silverado?
the blend door actuater is more than likely the cause of the noise.....very common....can go in behind the glove box to replace it.
What is the cause of car heater failure?
engine thermostat, fan motor,or fuse.
Can low coolant cause no heat in 97 Chevy Blazer?
Yes it could and so could a stuck open thermostat or a plugged heater core or a faulty temperature blend door actuator.
What could cause a 1994 Chevy Beretta to over heat?
You should check your thermostat and maybe your water pump,catalitc converter, heater core, hoses might have holes in them or maybe low and colant
