Question about Cadillac Eldorado

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The problem is with the windshield wipers. They come up about 3 or 4 inches and then back down, and keep doing this until you turn them off, and it does not matter which setting the wiper switch is in. I first replaced the wiper motor with a reman from Auto Zone, this did not fix the problem. So I replaced it again with a reman motor from Orielly's, still no solution. I went to the GM dealer and explained the problem, they suggested maybe the wiper motor module (the plastic electronic cover for the motor), I replaced that and still the problem persists. The contol arm that bolts on to the back of the motor that hools to the wiper linkage is just oscilating instead of going around in circles and so is the round part coming out of the motor. The hole in the control arm is not rounded out and there is nothing wrong with the linkage, it works just fine when operated by hand. Any ideas??

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  • jrindfw Jul 27, 2008

    The problem is with the windshield wipers. They come up about 3 or 4 inches and then back down, and keep doing this until you turn them off, and it does not matter which setting the wiper switch is in. I first replaced the wiper motor with a reman from Auto Zone, this did not fix the problem. So I replaced it again with a reman motor from Orielly's, still no solution. I went to the GM dealer and explained the problem, they suggested maybe the wiper motor module (the plastic electronic cover for the motor), I replaced that and still the problem persists. The contol arm that bolts on to the back of the motor that hools to the wiper linkage is just oscilating instead of going around in circles and so is the round part coming out of the motor. The hole in the control arm is not rounded out and there is nothing wrong with the linkage, it works just fine when operated by hand. Any ideas?? This problem is on a 2000 Eldorado. Thanks.

  • jrindfw Jul 27, 2008

    There have not been any vacuum issues with windshield wipers on cars in "about" 40 years. This site has not been helpful at all.

  • MAC1976 Dec 22, 2008

    I HAVE THE SAME PROBLEM CAN U EMAIL ME AT MAC1976@SBCGLOBAL.NET HELL CALL ME AT 708-243-8803 WHEN U FIND SOMETHING I WAS JUST ABOUT TO BUY A MOTOR TOO

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Hi,

sounds like the worm gear coming out of the motor isnt engaging on all of the teeth of the round gear in the gearbox except for a few maybe or the round gear is coming up and out of round inside the gearbox under load. When you replaced the motor, did it come with the gearbox also? Take the whole thing apart on a workbench and with a battery charger run it straight to the 2/3 motor leads bypassing (isolate) the mini computer on the assembly. the gearbox maybe is sealed in a way with bent flanges, you may have to unbend them to take a look in there, but it sounds like a motor worm gear box alignment issue. If you have wipers with double squeegees or anything other than stock take them off, cadillac wipers are a yard long anyways. write me back if that doesent get it. sorry couldnt be of more help, maybe copy and paste a pic in here so I can take a look there,

J

Posted on Aug 20, 2008

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  • Jude Meredith
    Jude Meredith Nov 07, 2010

    I was working on a 97 sts and had to go down to the brass tacks on this one. I had to remove the whole assembly, open it up, remove the spring arm and magnetic spring assembly and coil. and run it on a two contact toggle hi/low. the cruise control is the only fuse that shuts off with the key under the hood. you have to adjust the arms so theyre up a little. could not get it to work stock, probably needed a new column switch. rainsense issue. theyre working fine on the toggle, just have to manually park them..jm

  • Jude Meredith
    Jude Meredith Nov 07, 2010

    remove the magnetic coil and spring and reverse the polarity so the activating arm locks into place, then hook it up so the polarity is normal, wire a toggle,

  • Jude Meredith
    Jude Meredith Nov 07, 2010

    leave the secondary wiring harness disconnected if you wire the toggle, just the wires to the motor harness stays plugged in.

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Could be a vacuum issue.

Posted on Jul 27, 2008

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I just solved this problem last night with my '05 Impala, and ultimately the solution was what newton5083 stated above.  Yet, it may also be this (I found it online somewhere):
You have bent or broken the "park tab" on the windshield wiper motor bracket. The correct way to fix this is to remove the wiper arms, wiper linkage and wiper motor from the wiper motor bracket, and install a new bracket.
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8. You need to find something to pry that tab back up so when the wipers are running that spring loaded little arm just snaps past the tab running clockwise. It's when you shut off the wipers that the wiper transmission assembly reverses rotation counter clockwise and the small spring loaded arm underneath hits that tab stop, than the wipers will go all the way down and shut off as they should.
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There is a revised bracket part # which is supposed to be more durable, GM part #12368639. Here is a copy of the TSB which points out this problem:
Bulletin No.: 05-08-43-003A
Date: March 10, 2005
TECHNICAL
Subject:
Windshield Wipers Park in Up Position (Replace Windshield Wiper Motor Bracket)
Models:
2005 Chevrolet Impala, Monte Carlo
Supercede:
This bulletin is being revised to make a correction to the Parts Information. Please discard Corporate Bulletin Number 05-08-43-003 (Section 08-Body and Accessories).

Condition
Some customers may comment that the windshield wipers park in the out wipe (vertical) position.
Cause
This condition may be caused by a bent park tab on the windshield wiper motor bracket.

Correction
To correct this condition, replace the wiper motor bracket. It will be necessary to transfer the following parts listed below to the new bracket.
^ Wiper transmission
^ Wiper motor crank arm
^ Wiper motor
1. Remove the windshield wiper motor drive system module.
2. Remove the windshield wiper transmission from the windshield wiper motor bracket.
3. Remove the wiper motor crank arm from the windshield wiper motor.
4. Remove the windshield wiper motor from the bracket.
5. Install the windshield wiper motor to the new bracket.
6. Install the wiper motor crank arm to the windshield wiper motor.
7. Install the windshield wiper transmission to the windshield wiper motor bracket.
8. Install the windshield wiper motor drive system module.

A TSB is not a recall, if vehicle is still under warranty the dealer should be repaired for free. If not, you'll have to pay for the repairs. 

Dec 10, 2008 | 2005 Chevrolet Impala

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