wiper motor testing; 71 Challenger

Author Topic: wiper motor testing; 71 Challenger  (Read 5491 times)

Offline hemi68charger

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wiper motor testing; 71 Challenger
« on: September 10, 2013 - 08:01:27 PM »
I would like to test the variable wiper motor in my friend's 71 Challenger. The motor is installed on the car. It isn't parking. The motor was restored many years ago, but this is the first time we have energized the system. When I push the switch the washer bottle does work, but that is on a separate circuit. The motor does seem to be grounded properly.
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Offline anlauto

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Re: wiper motor testing; 71 Challenger
« Reply #1 on: September 10, 2013 - 08:11:59 PM »
Check out this video
70-74 E Body Corner Switch pod grounding.
 

Jules  :angelwings:
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Offline blown motor

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Re: wiper motor testing; 71 Challenger
« Reply #2 on: September 10, 2013 - 09:52:58 PM »
Good video Alan. I only have one speed and it doesn't park. Maybe that's my problem. Thanks.
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Offline hemi68charger

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Re: wiper motor testing; 71 Challenger
« Reply #3 on: September 10, 2013 - 10:35:43 PM »
Thanks Alan........ I'll give that a shot... Jules is the one who rebuilt the motor........ But I sort of don't understand, is there a place that the bracket the switch is mounted to which grounds it? I know the switch has to be grounded too for the FSM shows that.......

This will give me a clue.........  Thanks........

T
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Offline 360FISH

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Re: wiper motor testing; 71 Challenger
« Reply #4 on: September 11, 2013 - 03:34:46 PM »
Thanks for the video!  I'm about to dig into issues with my wiper motor and this helps.

:)

Alan
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Offline Fern

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Re: wiper motor testing; 71 Challenger
« Reply #5 on: September 11, 2013 - 08:09:26 PM »
I had the same problem, just installed a seperate wire from the back of he plate to the dash.
Works great!

Offline TinCuda

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Re: wiper motor testing; 71 Challenger
« Reply #6 on: September 11, 2013 - 08:42:44 PM »
Good info.  This might just save me some cash!



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Offline hemi68charger

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Re: wiper motor testing; 71 Challenger
« Reply #7 on: September 11, 2013 - 09:02:47 PM »
I had the same problem, just installed a seperate wire from the back of he plate to the dash.
Works great!

Wow, I just did that before I read these replies...... Since I have the mini-cluster out, I'm going to do what was done in the video, but in the car...... I too installed a separate ground wire and will attach it to an appropriate ground point under the dash.....

Someone mentioned there is a ground strap that is supposed to go between the steering column and dash frame like in my '69 Chargers?
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Offline hemi68charger

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Re: wiper motor testing; 71 Challenger
« Reply #8 on: September 12, 2013 - 08:50:09 PM »
The four wires coming out of the wiper harness, does anyone know which spades they plug into? I'm having a hard time looking at the video and seeing them........ I have the switch cluster out and going to test everything outside of the dash (wiper motor still installed in car ).....
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Offline Travis72

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Re: wiper motor testing; 71 Challenger
« Reply #9 on: September 22, 2013 - 01:46:22 PM »
On my 72, for the 4 wires coming out of a 3 speed wiper motor they are wired like this:

Red from wiper motor goes to terminal F-1 on the switch
Brown from wiper motor goes to terminal A on the switch
Dark Blue from wiper motor goes to terminal P on the switch
Dark green from wiper motor goes to terminal F-2 on the switch

The other wire you need is a 12 gauge power wire to the switch on terminal B
The last terminal W is for the window washer

Hope this helps.

Travis
72 Cuda

Offline E74

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Re: wiper motor testing; 71 Challenger
« Reply #10 on: October 12, 2013 - 07:47:05 AM »
Brilliant you guys, I found the answers I was looking for, Thanks

 :aussie:


Offline HP_Cuda

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Re: wiper motor testing; 71 Challenger
« Reply #11 on: October 12, 2013 - 05:04:40 PM »

I wonder if you had to ground the frame because the ground at the wiper itself was completely gone?

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