68 wiper problems
When the motor is running do you have the two different speeds?
next question or statement.. To park the motor, the ground is removed from the blue wire by the wiper switch. This wire runs from the 1-2-3 connector on the motor all the way to the wiper switch. It then runs to the relay. So... I'd start looking real hard at the wiper switch and at the relay. If you remove the relay in most cases if burnt, you can file the point contact off to repair. The cover comes off pretty easy too.
I hate to say this but I would double check the wires and the locations on the wiper switch connector.
Also.. I know you've watched the corny video I did of this.. you may want to review it too..
Willcox
When the motor is running do you have the two different speeds?
yes both speeds do work.(with key off also.... will check sunday am if the same with key on..... I suppose it will.
next question or statement.. To park the motor, the ground is removed from the blue wire by the wiper switch. This wire runs from the 1-2-3 connector on the motor all the way to the wiper switch. It then runs to the relay. So... I'd start looking real hard at the wiper switch and at the relay. If you remove the relay in most cases if burnt, you can file the point contact off to repair. The cover comes off pretty easy too. Okay will look at that Sunday am also.
I hate to say this but I would double check the wires and the locations on the wiper switch connector. do you mean to make sure the connector is on correctly? I'm pretty sure it is but will double check.
Also.. I know you've watched the corny video I did of this.. you may want to review it too.. will do.... I like that video

and have had it saved for quite awhile now.Willcox
Check the relay.
And.. Did the motor park when bench tested by removing the blue wire???? Most important... You could have an issue with the park switch.
Guess I was a bit tired last night and didn't emphasize that point.
The orientation of the plug is correct with the two bumps on the opposite ouside edges.
Check the relay.
And.. Did the motor park when bench tested by removing the blue wire???? Most important... You could have an issue with the park switch.
Your pdf file says to remove the #1 position ground wire on the three wire motor flat connection. (this is the blue wire on the connector) This is what I believe (if my memory serves me right) I did and the motor then parked.
Guess I was a bit tired last night and didn't emphasize that point
yes I see you were up late. Thanx for taking the time. .
shmoky
Last edited by shmoky; Apr 3, 2011 at 02:25 PM.
The wires to the motor connector are correct. Here's a pic. That 1-2-3 plug only goes on one way.

I double checked the systems and here is what I get.
Everything plugged in and KEY OFF/: continous low speed only and clicking past the park cycle spot no matter where the switch is.
everything plugged in and KEY ON/SWICH OFF: low speed clicking past park cycle spot.
everything plugged in and KEY ON/SWITCH LOW: low speed works fine (no clicking past park cycle spot)
everything plugged in and KEY ON/SWITCH HIGH: high speed works fine (no clicking past park cycle spot)
The only way to turn it off is to disconnect the Brown (my black) wire from the motor. This just shuts the motor off instantly.
Hope this gives you some more clues to figure this out.
shmoky
Then do a park test with some jumpers.. once finished, start replacing wires one at a time to the car wires... If you know the yellow has 12 volts on it.. use a jumper there to the motor and then use test jumper for the grounds.. Then replace one ground at a time to the original car wires.. Make sense.. this would help isolate which wire the issue is on too..
When you hook up 1 wire that creates the issue then we start tracking backwards from there...
The Best of Corvette for Corvette Enthusiasts
Disconnect the #3 wire and I get high speed with 12 volts on the #5 wire.
When I disconnect the #1 wire it stays on slow speed but keeps clicking as it goes by the park cycle. (no volts on the #5 wire)
shmoky
PS I didn't use the yellow wire for power. I used a separate wire directly from the battery to the red (#6) and the yellow for power.
Last edited by shmoky; Apr 4, 2011 at 08:19 PM.
shmoky
If when you bench tested the motor.. and didn't park it on the bench.. they this would explain the constant run.... The motor park is bad and not parking.. and will run until you unplug it.
I'm wondering now about the smoke you mentioned in the first post.. new motors will sometimes smoke a bit when fired up for the first time.. but aside from that you should not see smoke.
I would pull the motor out.. stick it on a bench one more time and just double check everything on there. If it fails this bench test.. it's toast..

Willcox
Now from my post I erased...
I think would still do this just to make sure the wires are correct through out the entire car..
I think at this point.. I would run continuity checks on each wire from point a to b. Start with the 123 and follow these wire though the car to the see if you can find a problem. I would also make 100 percent sure the ground (black case ground) is not hot. Saw that one the other day in my shop....
I was concerned about the wiring also so did the continuity checks and everything seems to check out.
shmoky
You could ship the car down here..
Still to cold for a northern venture.
Key off: From plug where wires 4(white), 5(brown), 6 (red) go to.
Red #6 12V brown #5 12V
1-2-3 plug all 0V
washer wires blue 0V yellow 12V
Key on: red #6 12V brown #5 12V
1-2-3 plug blue & Yellow 12V Green 0V
washer wires blue 0V yellow 12V
Key on/switch on: red #612V brown #5 12V
1-2-3- plug blue & Green 0V yellow 12V
washer wires blue 0V yellow 12V
Back to the bench test.
Got everything to work just as it should including parking when removing #1 ground wire. But this only worked intermittently. Not every time and sometimes had to re & re the #1 wire to get it to start again. Real confusing…………… so started to look and check all the wires and moved them around until I found that the #5 wire on the motor was loose inside. If I pushed it in and out it would cut the motor in and out. So now I have to open it up and see what I can find. Too late for tonite but will tackle it tomorrow after work.
Will post my results then. Might have to order another motor (I have 3 now).shmoky
PS Not to cold for a northern venture..... I have a heated garage and the snow is starting to melt.


Last edited by shmoky; Apr 5, 2011 at 09:57 PM.


The black wire is the loose one.
shmoky
Last edited by shmoky; Apr 5, 2011 at 06:01 PM.


The black wire is the loose one.
shmoky
Remove the washer pup from the car and you'll see the park switch. Remove the two screws that hold it in place and I think you may be on your way to fixing this problem.
The switch is B and the screws to remove are marked A. 



