Posted By: CHRGR69
Blower Motor - 12/30/08 08:02 PM
Refurbishing my non A/C heater box on my E body. I wanted to test the motor, so I did +2+ and -to- on the battery. Nothing. So I tried it with the new motor. Also nothing. What's up?
Blower Motor
Posted By: 69Cuda340S
Re: Blower Motor - 12/30/08 09:59 PM
Quote:
Refurbishing my non A/C heater box on my E body. I wanted to test the motor, so I did +2+ and -to- on the battery. Nothing. So I tried it with the new motor. Also nothing. What's up?
It should spin even if you have the polarity reversed?
Posted By: CHRGR69
Re: Blower Motor - 12/30/08 10:09 PM
Quote:Quote:
Refurbishing my non A/C heater box on my E body. I wanted to test the motor, so I did +2+ and -to- on the battery. Nothing. So I tried it with the new motor. Also nothing. What's up?
It should spin even if you have the polarity reversed?
Correct! I did that too with both motors. Nothing! Does the casing have to be grounded?
Posted By: 71rm23
Re: Blower Motor - 12/30/08 10:57 PM
I was affraid that mine wouldn't work when I rebuilt my heater box. I tested it on a battery. Pos to pos, neg to ground. Viola, it worked 
Posted By: 69Cuda340S
Re: Blower Motor - 12/31/08 01:23 AM
The blower motor in my car has one power and one ground wire. I was just testing it today because I was diagnosing a squeaking noise in the motor. If I connect 12 volts to the ground and positive wires of the motor it spins. The motor case itself was not grounded. The motor would spin if I switch polarity too.