a bad switch.. it probably works on very very low... wiggle it and see if you get a momentary gust of air.. if so .. nothing 80 dollars wont fix.
blocked heater or evaporator core. Fan may have sucked up something and blown it against. Blend door or one of the others in an automatic temp control may be causing the air to not flow properly.
Could be hi-speed fan relay or secondary winding in blower motor
It has a bad "Blower Motor Resistor" The fan switch itself is fine.
A glass blower is a person that blows glass.
Blows hot or cold air (as selected) through the ductwork behind the dash.
blower motor resistor
it's a problem with the blower motor resistor
there are resistors located by blower motor. could be open. they control blower speed.
Replace the blower motor also.
under the hood.. by the windshield wipers.. it blows in .. doesn't suck through.
It will be located somewhere in the path of the air that the blower motor blows.
As for why it blows only on the high speed you most likely will have a bad blower resister and for the noise, it could be a bad blower motor, bad blower wheel or trash that is stuck in the blower wheel or housing.......
I think you should look at your fuse panels and see if you have a blown fuse . Some vehicles have a fuse for high and low blower speeds. Your problem is either the blower motor switch itself or a defective Blower Motor Resistor Pack. More than likely the Resistor Pack is defective.
Somewhere in the path of the air that the rear blower motor blows
Inside dashboard in path of air that blower motor blows.
probably the heater core is plugged
Air temp should be between 48-52 degrees at 1200 RPM Air temperature will be cooler at lower blower speeds because the air is moving slower over the evaporator
it is the moter that spins the fan that blows your heat or ac out of your vents
AnswerDepends whats broken ie. blows cold, no blower at all ???????no blower at all
blower motor resistor
your switch cable might be broke you will have to remove your dash
you broke something when you took the blower off .......
If your blower blows at one low speed and max your resistors could be to blame. If there is no max at all; then the orange 16Ga fusible link could be the culprit. To backprobe: It is a large sized red wire that connects to the blower relay. No blow at all: HTR/AC fuse, or the blower itself has blown. To check HTR/AC fuse: Turn on the AC; if you get a click-it isn't the fuse. To check the blower: A voltmeter or 12v test light will determine if there is juice to the blower. A rare case would be the control head contacts getting gummed up. If the blower works on the 3 low speeds but not on high speed, the blower relay is bad
Electrical heating element, electrical blower - blows hot air.
Blows on #4 only? I would replace the resistor. #4 speed by-passes the resistor.