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Posted by: biker bob May 30 2012, 08:07 AM

The wipers on my 72 operate at only one speed (low I think). How do I get high speed?

Posted by: Bartlett 914 May 30 2012, 08:14 AM

I would think you have either a bad switch, a broken wire or a bad motor.

Look at the motor and the connections first. There are 2 black wires. One has a blue and the other a purple tracer. Maybe one got pulled off the motor connector.

Posted by: Valy May 30 2012, 09:53 AM

If it works at similar speed for both positions of the switch, I suggest you clean and lube the wiper mechanism and the electric motor. You may also make sure the wipers are properly grounded at the ground connection under the dashboard.

If one switch position is just dead, you have an electrical fault, either in the switch or harness.

Posted by: biker bob May 31 2012, 01:52 PM

The wipers work at the same speed in both switch positions. I'll lube the assembly and check the ground wire tomorrow. Thanks

Posted by: markb May 31 2012, 02:03 PM

You might also lube the shafts, they can get gunked up.

Posted by: Millerwelds May 31 2012, 06:13 PM

My shaft always gets gunked up after I lube it.

Posted by: markb May 31 2012, 06:26 PM