For most GM trucks or SUV's, it's under/behind the glove box. But the most GM motors do not have multiple speed capacity. That is usually a function of the switch. Many of the GM multi speed vehicles use the heater function switch assembly to control motor speed. Unfortunately, many of them are "solid state" and require that the entire heater function switch be replaced when something goes bad.
Heater blower resistor is what controls the low medium high speeds...
You have a relay located behind the glove box once removed to the left and you also have a blower resister that controls the speeds located on the passengers side in the blower motor housing..............
you need a new rheostat !
The relay for only the high speed blower function is located in the fuse and relay center under the hood. The resistor for the blower motor lower speeds is located under the hood, passenger side, on the firewall close to the blower motor.
Yes, located in the blower motor resistor pack. Follow the wires backward from the blower motor to find it.
A bad heater blower motor resistor would effect one or more blower speeds other than high.
usually the blower motor resistor pkg. located on or near the blower motor
blower resistor especially if its chrysler/jeep or blower switch
Probably the blower motor speed resistor is partially burned out.
Resistor on the heater blower motor has failed
The blower motor resistor that sits behind the blower motor itself all the way against the firewall.
Blower wont work on all 5 speeds, usually the lower speeds tend to go first.
The blower motor speed resister is burned out. This part is available from your local auto parts stores. The resister is located in the engine compartment, on the firewall, on the passengers side.
The blower motor resistor is defective. They go bad when the blower motor pulls to much amperage.
Year make model aside, most have power going to motor and grounds are through the blower motor resistor, setting speeds by using different resistors on the board, or in the case of automatic climate control, a power resistor control board, usually located in the heater box near the blower motor, google or ebay for one for your vehicle, get a picture of it in your head and look around the blower motor. They have diodes in them that fail and you will lose all speeds and other times, one or two.
replace the resistor pack on the fanblower, under glowecompartment
The stage 1 relay has blown! it is located behind the glovebox door above the heater blower. # find it # pull it out # replace it job done:-)
Only for the high speed blower function. The lower speeds go thru the blower motor speed resister.
replace the blower motor resistor located on the passenger side under dash up in the corner.
If it has only high speed, the blower motor resistor has to be replaced to get all speeds back.
Not knowing what year S10 you have, you can generally find the blower motor high speed relay nearby the blower motor on the firewall. The resister for the other lower speeds is also found close by the blower motor.
If all speeds do not work, suspect the fuse, the switch, the switch connector or the blower motor. If only high speed works, suspect the blower motor speed resistor. If low speeds work and not high, suspect the blower motor relay.
The blower motor resistor is bad.
Sounds like you need to replace your blower motor resistor.
could be thermostat or heater fan if you can hear all the speeds on the blower motor working then it could be your thermostat but your heater core might be plugged as well