I just bought a used 97 sable 3.0 V-6. The a/c blower will only work on high speed. I was told a resistor was bad. Do I need a new switch are is the blower motor bad? Thanks

you need whats called alow speed fan switch.

YOU NEE ABLOWER RESISTOR BUT CHECK COWL ON RHS AND SEE IF ITS BOWED UP CAUSING WATER TO GET IN BOX RUINING RESISTOR