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.
when the pump is going out it will make a humming noise from the bearings even if the resivore is full.
My trombone does not make a humming noise. Does yours?
Most ceiling fans make a humming noise. If you feel the humming noise is unusual, you should check how attached the fan is to the ceiling, as the vibration of the fan can cause a humming noise.
It is the automatic air leveling system. If it runs constantly you have a blown rear shock.
the humming noise is coming from a bad ground on you stereo
Certain types of tires may cause a brief humming noise after your initial acceleration. The transmission may also cause a brief humming noise.
the wings because it flaps so fast it makes a humming noise
Purrrrrr and humming noise
Check the rubber elbow attached to the PCV valve. My 1999 Buick Century just started humming this week and I finally found that the rubber elbow conecting the PCV valve to the vacuum hose had collapsed (age wear?) It kind of sounds like when you let the air out of a balloon by pulling the sides of the fill tube, only much lower in pitch and a steady note.
2001 buick lesabr // when recirculate speed doesnt change only make humming sound rest of heater works fine
Bad fan clutch!!
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
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.
no they make humming noises when they are have digestive problems
The wings flap so fast that they make a humming sound!
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.
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.
You may have problems with your brakes' master cylinder. Have it checked by a mechanic.
In general, no - a sick hamster will typically make less noise than usual and will hide away from everything. A sharp humming noise may indicate distress or anxiety.
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.
a humming sound to show you that it is secure.