2-Speed Wipers not homing...

[Oystercopy]

Hey guys.. my 2-speed wiper motor is not homing the blades. I've tried grounding the motor and the wiper switch in the panel; no change. I've attached pics of the motor. I was wondering if anyone has been able to get to the homing switch inside the motor WITHOUT removing the motor from the car? Thanks.

 

[EW1BH27]

There is no homing switch inside 2 speed wiper motors. Reversing (homing) is done through the dash switch and the cam assembly on the link. Here's an old video on those and pictures of the cam assembly. Also, scroll down to "Similar threads", there's good info in those threads too.

 

[Oystercopy]

There is no homing switch inside 2 speed wiper motors. Reversing (homing) is done through the dash switch and the cam assembly on the link. Here's an old video on those and pictures of the cam assembly. Also, scroll down to "Similar threads", there's good info in those threads too.


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OK, thanks for that EW1... I guess my problem could still be a lack of good ground, either at the motor or the switch. I'm pretty sure I properly grounded the switch to frame, but not 100% that I grounded the motor properly. I'll have to go in there and check the grounds and improve them at the motor, because ever since they painted the firewall when the car was restored, I've had ground issues there. First it was the voltage regulator losing ground and now this. Not surprised if the motor isn't properly grounded to frame, but I'll have to recheck it.

 

[EW1BH27]

I don't see that brass ground strap anywhere in your picture.

 

[Oystercopy]

I don't see that brass ground strap anywhere in your picture.

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That's because I grounded the motor block (one of the studs) to the engine, but removed it when it didn't fix the problem. Does it need to be grounded to the ballast resistor, for some reason?

 

[EW1BH27]

No, the ballast resistor doesn’t need to be grounded, just the body of the wiper motor grounded to the cowl. I would think grounding it to the engine would have been good enough.