Just replaced my blower motor yesterday. Same issue you have. It's not a bad job. It's made easier if you have one of those flexible extensions that go on your screwdriver.
Check it out first, I had a car that had a piece of plastic (grocery bag)
causing the noise. otherwise sounds like motor is going
SOURCE: AC/Heater blower
not hard to replace blower motor, could have something fell into the vents? check first before replacing motor
SOURCE: air conditioner and heater makes loud noise when turned on.
This might be the noise problem in your blower.The blower is out of balance with this added weight.
SOURCE: heater blower making a squealing noise
hi this may be the bearings in your heater fan gone u/s and possibly dry unfortunately the only answer to this is replace the fan ...hope this helped
More than likely the resistor for the heater motor is causing the problem
it is located behind the heater motor under the dash on the passengers side. If the heater motor is making noises it may be drawing to much and caused the resistor problem.
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