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George H.
George H., ASE Certified Technician
Category: Pontiac
Satisfied Customers: 18449
Experience:  ASE Master Tech 15+ years
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I have a 1963 Pontiac lemans, Engine 195 four cylinder,

Customer Question

I have a 1963 Pontiac lemans, Engine 195 four cylinder,
Problem
My heater Blower not operating when selected by the switch.
What have I done
I check the fuse 20amp it is good
Under the hood I power check at the plug to blower It showed 12 volts
I did bench check of the motor with battery charger I put one on power position, and the other end on amature of housing and the motor worked.
What is wrong? Could it be my heater switch is bad?
Submitted: 10 months ago.
Category: Pontiac
Expert:  George H. replied 10 months ago.

Hello I will help you with your question,

Yes it could be the heater switch. Ant burning or melting of the wire connections can soak up the power needed to run the motor.

Do you have a voltmeter?

Customer: replied 10 months ago.
I have no burnt connection as far I can see
Expert:  George H. replied 10 months ago.

Great, with the motor plugged in and the switch on high (Key on) check the black wire at the resistor (plugged in) and see if you have 12 volts there. If no then check the tan wire at the switch. First check that you have 12 volts at both ends of the fuse.

Let me know what you find

Thanks

Customer: replied 10 months ago.
I cant do this today I will be back to you when I do
Expert:  George H. replied 10 months ago.

Good, just post back on this thread and I am notified. I am here most of the time.

Thanks