Wiper motor...

guysmontess

Well-Known Member
78-88 G Body cars like my Monte are notorious for having issues with the heater/ac,gauges and the windshield wiper motors.The intermittent feature stops working,the electronics for it is in the wiper motor cover,which is now discontinued by GM,and not available from NAPA either.I've replaced it once,now its stopped working again.There is an aftermarket vendor that does have the original GM part in stock,but he wants $ 150.00 for it,plus S&H.I looked through the junkers in my buddys yard the other day and got a wiper motor out of a mid to late 90's Dodge mini van.The motor was in line with my brake booster,but I was able to re-clock the motor.I took my motor out and found that it would be possible to get the Dodge motor in place,so I mounted it temporarily with Vise Grips,it needs to be grounded to the body.I did get it to work on high & low speed and got the intermittent to work but only with the wiper switch/turn signal stalk on high speed.It wouldnt make a full sweep either,so the arm would need to be modified somehow,maybe lengthened.I put mine back in for now,not sure what step to take next,wiring & electronics arent one of my strong points.
Guy
 

Do you have any wiring diagrams???

Mathd is pretty good with electronics, I think he has some kind of background with the stuff.
 
I do have a wiring diagram for my car Rick,but I'm not good at dechipering it.Hopefully Mathd will see this post...
Guy
 
guysmontess said:
I do have a wiring diagram for my car Rick,but I'm not good at dechipering it.Hopefully Mathd will see this post...
Guy

But even Mathd will need the wiring diagram if he is going to help. If scanning the diagram
and posting is a bit of trouble for you, then I guess you could wait and see whether he
thinks he can help before you go to the trouble of posting the diagram.

 
So you want to use the dodge wiper motor into the monte carlo if i undertand correctly?.
I will need a wiring diagram for both the monte carlo and dodge to see if it can work (pretty sure it will)and then how to plug/wire it.
If i can have the exact year/model of both vehicule i can look for the schematic around internet, ill take a look into what i can do about it tonight.

I do have some background with electronic(analogic, i dont do numeric/digital very much), been doing this stuff intensivly since am 7 years old(repairing stereo/tv/video/casette playerm, some microelectronic, since a few years am mostly building and modding vacuum tube amp for guitar and car electornic repair) hehe.
 
Thanks for joining in mathd.My car is a 1986 Monte Carlo,the wiper motor came out of a mid to late 90's Dodge Caravan mini van.I dont know the exact year,but I could probably find out next week sometime.And yes you are correct,that is exactly what I want to do,put the dodge wiper motor in my monte carlo.
Guy
 
ok, i just got back home and need to shower and so on, its a little late, i will check this for you tomorrow :)
 
Thanks Mat,no hurry,we are off for a 2 day cruise with another couple.This is our third annual cruise with Tim & Lynda,they have a '68 Beaumont.
Guy
 
Also while I'm thinking about it,there are 2 plugs for the wiper motor on my car.One plug goes to the cover where the electronic board is,the other goes to the bottom of the motor.There is a yellow wire that AFAIK goes from one plug to the other.
Guy
 
Well, i checked this today,
I think what you have done already is keeping the monte's wiper washer motor module (if the fit is ven possible)and plug the montes yellow wire to the caravan motor red/yellow and the monte purple to the brown/white and obviously the motor ground to ground.
As for the delay/pulse system they are completly different, the caravan use the BCM and the monte use the solid state circuit"usually made of charging resistor/capacitor"(wich i cannot have the internal diagram for..)
The monte use a mechanical arm while the caravane use a electrical switch for the ark sens position.
Am even surprised you got the intermittent to work on the high speed.

anyway i included the wiring diagram for both, if this can help someone. they are xps printer files windows 7 can open these files.
97 caravan wiper diagram
86 monte wiper diagram
 
Need to print out the wiring diagrams.....download these files and print.
 

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  • 86_monte-wiper-diagram.jpg
    86_monte-wiper-diagram.jpg
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  • 97 caravan diagram_1.jpeg
    97 caravan diagram_1.jpeg
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  • 86_monte wiper diagram.pdf
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  • 97 caravan diagram.pdf
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Thanks for the help guys,maybe I'll have to find another way to do this.I've read that a wiper motor from a 80's to early 90's GM car might work.
Guy
 
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