69 Chevelle Wiper Motor will not turn off

**NEATSS** · #1 05-30-2018, 04:59 PM

I had the very same issue. The motor will not stop until it goes into park position. A coil holds the parking paw until until the switch is turned off. At that time the paw drops out and causes the blades to go to park which breaks contacts to stop the motor. The coil that holds the parking paw is not releasing, be it mechanical or electrical. With mine it seemed there was residual magnetism holding the paw and keeping it from activating. I could not find a mechanical cause. I replaced the coil assembly with a used one and problem solved.

**Woj** · #2 05-30-2018, 07:43 PM

Is this something that can be repaired easily, or should it be sent out to someone who has already done this? The motor looks to have been restored already, but I'm not sure who did it?

**mockingbird812** · #3 05-30-2018, 08:13 PM

Quote:

Originally Posted by Woj

Is this something that can be repaired easily, or should it be sent out to someone who has already done this? The motor looks to have been restored already, but I'm not sure who did it?

Woj - my 49 y.o. motor looks pristine/new and was never restored. They are really encapsulated in there well. So your bud's motor may or may not have been restored. there is an adjustment screw (with a nut to secure it in set positon) at the end of the motor drive shaft that can be adjusted and will affect where the brushes contact the motor. You might check that that is set right.

**NEATSS** · #4 05-30-2018, 10:41 PM

The motor I had issues with was a fresh rebuild from a major Chevelle parts supplier. The coil was brand new. The coil can be replaced by heating and resoldering 3 or 4 connections. No need to disassemble the whole motor. Do remove from the car. The coil is located behind the washer assembly and under a plastic mounting fixture retained with one screw. The fixture and 3 power tabs should lift out as a unit. TAKE CARE NOT TO BREAK THE RESISTOR that is located below. You will need an old wiper motor for parts. New parts may be available, but I have not researched that. New parts may be the same as was used in my newly purchased rebuilt unit.