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Classic Truck Discussion Board

Re: 67-71 wiper motor wiring


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Posted by John McPherson on August 06, 2005 at 19:56:49 from (216.251.171.205):

In Reply to: 67-71 wiper motor wiring posted by mnmsparky on August 02, 2005 at 20:41:41:

Dodge?
Ford?
GMC/Chev?

In general, if you have two speeds, and the ground is through the switch, you are using two windings- You could have three speeds available as a result, or with the switch you currently have- just two.

Since it is not likely that each winding will have it's own power source wire, there has to be one common connection.

Trial and error with a battery and jumper wires will tell you which wire combination provides high and low speed. The motor may end up just having three wires with a four wire plug- you cannot always rely on the connector alone.

Trial and error will make sparks at times, but you will not damage the motor with momentary connections- they are durable.


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