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Re: blower motor grinding
The first thing you need to know is that replacing a furnace blower motor can be dangerous. You can be injured, you can loose your fingers, you can be electrocuted, you can be burned and you can be killed. Make sure the power to the furnace is off, just because it is not running, does not mean the power is off, just turning the thermostat down does not mean the power is off, Make sure the power is off at the circuit breaker, or the fuse is removed. I have found that 90 percent of the time...----------------------------------------------------------------------------------------- Super VAG K+CAN V4.8
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why do this backwards. ??
or not using simple diagnosis>?
so really you failed to state the beginning symptoms?
was it just just noise. or noise and no blow.
or the noise is gone,, but my fix broke the blower.
there will no heat not moving, if the blower is dead.
get heat , moving in non circ, mode.?
sure i bet you do an that is SOMETHING.
does the blower make sounds like a normal blower, then if no air flow
the dampers are bad.
blower silent? on all speeds, , do say so.
blower works only on high (sounds) ?
if the blower is running, surely you can hear it spin fast.
and there is no flow, the damper is bad or the blower fan blade set screw
is missing and or loose. did you check that screw first. before.
replacing the motor? id not ever skip that step.
we can not help you ,with no facts or symptoms but still nothing.
Sounds like the blower motor went out, needs replacing. Possibly something got stuck in the fan blades, but doesn't sound good for the motor. If you take it out and something was jammed in the fan, test the motor with jumper wires from the battery.
Perhaps it's not the motor itself, but the cage fan. If it is not mounted correctly on the motor shaft away from all things that might touch it. Also, if the motor was not put back at the right angles it will push the fan against its surroundings. Last idea is that the vent hose is touching the fan.
Year, Make, Model, and Engine Size?
Sounds like the blower motor resitor or module depending on your vehicle.
Most gm vehicles you can grind the resistor/module under the passenger side of the dash near the blower motor.
Post your vehicle specifics and I can be. Ore specific if needed.
I bet you have a leaf or leaves inside the heater blower compartment. The blower motor fan is always turning slowly even though the AC or fan is turned off to provide for ventilation. See if the grinding noise changes when you turn the AC fan on or off.
could have debris in the fan housing or the blower motor bushings or bearings are going out. take the fan out of the air conditioning case and vacuum out the air conditioning/heater core assembly case. then hook everything back up and see if this works.
the problem could be in the blower wheel or motor, is there a vibration with the blower on and grinding. i rec removing blower motor and inspecting that further. debris could be cought inside it or blower may need replacing. it may not be that bad of a repair $$.
My '99 Intrepid at 132k mi had a sound like a pan of rocks rolling around in the front end. The engine fan and the A/C fan were shot. Replacement of fans and a couple of belts (serpentine and another) cost about $800 at the dealer in May 2006. Still going strong at 152k, but should replace the steering gear box.