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Why would the heater-ac in a 2002 Buick Century make a humming noise?
Wiki User
∙ 16y ago
Low coolant or trapped air in the cooling system can cause gurgling noises, humming can be caused by debris like leaves in the blower motor squirrel cage (blower fan). You could check for debris before replacing the motor, when is out, turn it by hand to see if the bearings are rough. If the heat blows warm, no air is trapped. If the heat does not blow warm, check the coolant level and bleed the system if necessary. It might be a bad bearing in the heater fan motor. Does it go away when you change fan speeds? If so, replace the heater fan.
Wiki User
∙ 16y ago
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What would cause a humming noise after starting a 1992 Buick Century with 55000 miles that comes from the area of the power steering but it has enough fluid?
when the pump is going out it will make a humming noise from the bearings even if the resivore is full.
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It is the automatic air leveling system. If it runs constantly you have a blown rear shock.
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2001 buick lesabr // when recirculate speed doesnt change only make humming sound rest of heater works fine
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Bad fan clutch!!
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is the humming coming from the front end of the vehicle? i have a 1996 explorer with the same issue. yes the noise come from the front but not all the time seems to make the humming noise when it gets hot
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The most common thing would be worn tires. It could also be a bad hub bearing. When you turn the car to the right does the humming noise change or go away? If so, the left hub is probably bad. When you turn left if it changes the right hub is probably going out.
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You may have problems with your brakes' master cylinder. Have it checked by a mechanic.
Car humming noise when accelerating?
If a car has a loud humming noise when accelerating, it could be that the air filter is missing. The air filter housing might also be loose. A loud humming noise can also be a signal that there is something wrong with the alternator belt or the fan belt.
What is Humming noise from Saturn Ion 2007?
where is the humming noise coming from? if it's coming thru the speakers and matches the rev tone of the engine, then you have a bad ground in your stereo.
