has anyone had to replace their dash AC/Heater controls or have a diagram and can provide some direction. Also has anyone replaced with after market controls. My controls have fallen apart and not sure what goes where on the back. Thanks for your help I have a 1986 Allegro Titan.
The Dash fan in Gone only works on high speed so needs replacing but know that the part itself is the most expensive piece. The wires are pretty much plug and play. I have not however searched to replace it jsut based on doing same in my Tacoma and the dash insert/controller was $150 just for the OEM aftermarket part.
Even if its expensive, the exact replacement part IS SO MUCH EASIER to replace. The make and model of the chassis/frame like if it is what was used in an x year x size truck chassis may help you track down the part. Some of those just have a switched resistor bank that controls fan speed which may be hard to replicate. On some GM trucks the switched resistor block (that controlled 3 speed fan) was separate and easily replaced down in the floorboard area NOT in the dash switch.