Lost the #3 fan speed on HVAC controls

[dmac0923]

my 02 ranger xlt with a/c


i just noticed that on my fan speed HVAC control i lost my #3 speed. When i select the #3 position, the fan runs at the slower #2 position speed.


its not a big deal but its kind of annoying since i can only have heat barely trickling out of the vents or blowing full blast lol.

you think its the fan speed selector switch or something else?

 

[rwenzing]

Could be that one coil of the blower resistor block is broken. A second possibility is corrosion at the connector to the resistor block. Either of these is much more likely than a failed blower speed switch.

The resistor is in the HVAC plenum under the hood next to the blower motor. If it comes to replacement, the cost should be about $10~20.