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Q: What would cause the heater in a 2001 Chevrolet cavalier to make a loud humming noise?
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What would cause a humming sound when car heater is turned on high?

The motor which blows air through the vents.


What cause a humming noise when heater is turned on?

its your squirl cage inside of your blower motor. guaranteed. happened to me twice


What could cause a Chevrolet Cavalier to stop running suddenly?

sounds like the ignition control module


What would cause a burning rubber smell to come from the vents of your 91 Chevy Cavalier?

Bad heater core.


Why would the belt be smoking on a 1994 Chevrolet Cavalier z24?

Normal cause of a belt smoking is that one of the driven pulleys has siezed.


What makes the power steering in a 2003 Chevrolet Cavalier squeak or whine?

low fluid would cause this or the pump could be going out


Why could cause the heater in 1994 Chevy Cavalier to blow cold air only?

Either the linkage from the temp control unit to the valve on the heater core (which is behind the radio and temp controls) or it is the heater core itself.


What cause the fuel pump on a 1990 Chevrolet cavalier to stop working?

Blown fuse, defective fuel pump relay, or a worn out fuel pump.


What causes a brief humming noise after initial acceleration?

Certain types of tires may cause a brief humming noise after your initial acceleration. The transmission may also cause a brief humming noise.


What would cause humming noise in front end of 99 Mercury Sable?

1999 Mercury front and humming noises can because by several things. Tire noises are the most common cause. A tire that is not wearing properly can cause a humming noise.


What would cause a 1990 Chevrolet Cavalier spit and sputter and then go dead?

check and see if you are getting fuel ,spark and compreesion these are the three main things if you have all of these repost


What would cause a loud humming on your 1997 Cavalier?

* As for any car,that could mean there is either something wrong with the engine or the carburetor. * If the vehicle hum only occurs with the vehicle is in motion, it's likely to be a wheel bearing, differential or gearbox.