Probably the blower motor resistor is shot.
Wiki User
∙ 2008-07-13 18:56:10The most common cause of the heater blower being on high only is the blower resister failing. The second most common problem is the blower switch going bad.
Most likely and bad blower motor resistor.
The blower motor speed resistor is burned out.
the heater resistor needs to be replaced it is mounted in the heater box next to the blower motor
from what i have read it is the blower motor resistor it goes bad and only lets the fan run on high google blower motor resistor and read on
The blower motor speed resistor is burned out.
The most likely problem with the heater blower on your 2003 Sable is the blower resister. The resister can go bad and cause you to only have one speed.
Check the blower resister
If it has only high speed, the blower motor resistor has to be replaced to get all speeds back.
try replaceing the switch that controls the low to high for heater It's gonna be the blower motor resistor (near the blower motor).
Most likely a failed blower resistor.
ABS and blower motor are unrelated.To fix blower motor, read this:http://www.ricksfreeautorepairadvice.com/diagnostics/blower-only-works-on-high-speed