Every time i turned on the air conditioning it made a loud deep noise and vibration due to the imbalance of debris inside the fan.
2004 chevy silverado heater fan not working.
31 of the time it s.
Also pay close attention to the wiring connector to check for melted wiring or poor terminal connections.
Some of this coolant is diverted from the cooling system into a heater core.
You might have noticed that the fan speeds 1 and 2 do not currently work in this truck.
The hvac fan speed works on 1 2 3 but not 4 or 5.
You should inspect the blower control resistor in the bottom of the evaporator case near the blower motor.
Check for melted connectors replace the connector if there is any damage.
This is a gm bulletin about your concern.
I was able to remove the blower fan assembly with no tools.
The 2004 chevrolet silverado has 8 problems reported for blower fan stopped working.
While there are a variety of reasons your chevrolet silverado 1500 heater is not working the most common 3 are a broken heater blower motor a problem with the thermostat or a failed heater blower motor resistor.
Cleaning it made a huge difference.
No tools needed for this job.
The worst complaints are heater ac not working properly blower fan stopped working and temperature control.
2004 chevrolet silverado ac heater problems with 32 complaints from silverado owners.
However as opposed to the silverado here i had no fan at.
This is on a 2004 chevy silverado work truck 1500.
Just bought my first silverado last november.
The heat in the silverado is supplied by the hot engine coolant running through the engine cooling channels.
After cleaning the fan it runs very smooth and quiet.
I read somewhere that it could be a resistor problem.
Remove the connector going to the resistor it will have 4 to 5 wires going to it.
Average repair cost is 60 at 72 600 miles.
The resistor is held in with 2 screws and comes out easy.
A fan then blows on the core to blow warm into the air into the cabin.
Car complaints car problems and defect.