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fuse or relay most likely
Where is the fuse or relay for 2000 f250 4x4 shift motor
the blower motor relay is located next to the blower motor it is connected to the motor by a purple and black wires
Crankshaft is inside the lower part of the motor.
if your blower motor is not properly working it is most likely your blower motor resistor. it is located next to the blower motor which can be found by looking through your glove compartment. 17.99 at your local autozone
To change the heater blower motor on a 2000 Chevrolet Astro Van open your hood. After you open the hood you will see the heater box on he passenger side remove the four bolts holding the motor in and pull it out.
If you are standing in front of the truck with the hood up, it is in the back left corner to the right of the heater resistor.
It is under the hood in the power distribution center.
under the motor
take the relay out of your fuse box that is for the alarm system. no relay means no power to the alarm system, not a fix but good enough to get you by until you can find the real problem and fix it
If a 2000 Grand Am sometimes has the heater blower working and sometimes it won't, the problem could be with the heater relay switch. The heater relay switch lets the heater blower know when to come on and when to go off. In most vehicles this switch is behind the glove compartment. This part sometimes gets corroded from condensation in this area.
You can access your 2000 BMW 323 replacement blower motor relay switch from the inside of the passenger cabin. You will need to remove the passenger side kick plate to access the relay switch.