heater blower only works on hi
 

my 2001 silverado heater blower only works on hi speed anyone know whats up? thanks

RE: heater blower only works on hi
 

It all depends, some vehicles have different relays for each speed on the blower motor that could be burnt up or I would probably think your blower motor itself is bad, just the lower speeds cooked in the motor.

RE: heater blower only works on hi
 

could be the switch, the motor, or a bad vaccum, which could be the line itself or the unit.

RE: heater blower only works on hi
 

The motor is good...

the blower resistor slows down the current for lower speeds...its bad (most lkely),or the switch itself...beware of the resistor plug being crispy from heat

RE: heater blower only works on hi
 

check the blower resister first most likley the problem