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Q: Why does car my car make a loud screaming noise when turning on the defrost or heater?
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What is the cause of a heater fan in a 2003 Alero to only make noise when on the defrost setting?

was there something on your dash that fell in the vent, a bad fan will make noise all the time.


What would cause engine to make noise when defrost is turned on?

The A/C system compressor operates when in the defrost mode. If the noise is also heard when running the A?C it is more than likely a problem with the compressor/pulley.


What rap song has loud screaming noise all the way through?

if i die young


Why is noise harmful to the environment?

because things people do such as slamming door,screaming ect.


Why does your 2001 ford windstar van make a noise when you turn the wheel and why doesnt the heater work?

2 questions in one...Noise when turning the wheel -* first guess, without a description of what the noise sounds like, is the half-axle, CV joints wearing out* second guess - wheel bearingsNot working heater - blower motor? Doesn't blow warm air? Etc etcLots of "Related Question" below to link into the relevant topics...


When you turn on the heater it makes a sqeaking noise what is needed to be fixed?

Probably the heater blower motor.


How can you make a loud noise?

you can make a loud noisy by screaming or throwing something heavy around


Why is there a loud vibrating noise when heater turned on?

When there are loose parts in the fan that runs the heater system, there will be many instances of noise and vibration. A technician should dismantle the system and fix it.


Noise front right tire?

when turning or when ridin?


Squealing noise in wheel when turning?

A Geo Metro is a front wheel drive vehicle. When a squealing noise occurs when the wheel is turning, it can be an indication of damage to the CV joints.


What could be making the rumbling noise in the car near the glove box?

HVAC blower motor going bad could make a rumbling noise in the car near the glove box


Why does a heater blower have a humming noise when the motor is running?

If the heater blower has humming noise when motor is running, first check its capacitor. If the capacitor is fine, then the motor is the problem and may need to be replaced.