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  1. #1
    Join Date
    Sep 2015

    Default Troubleshooting Non-Depressed Park Wiper Systems

    On my 65' skylark the wipers don't work.....how can I test the wiper motor with jumper wire ? and also how to test wiper switch by continuity test ?? thanks for any info

  2. #2
    Join Date
    Oct 2013
    Tulsa, Ok

    Default Re: wipers not working

    The wiper switch only supplies a ground to the wiper motor and washer. If it is 2 speed there are 2 connectors on the back of the wiper switch. Unplug the switch and run a jumper wire to each wire one at a time should be low speed, hi speed and washer.
    Should have positive battery switched voltage at the yellow wire at the wiper motor with the key on coming from the wiper fuse under dash.

    Most problems I have seen are the switch. The grease will harden inside the switch and the ground will not come thru the switch. If the switch is nor tight in the dash it will not work either. that is where the switch gets its ground.

    Jim C
    Jim C
    1965 Buick Special
    1965 Skylark

  3. #3
    Join Date
    May 2014
    Caledonia, MI

    Default Re: wipers not working

    I had issues with the wiper motor in our '62 LeSabre. I ran a ground wire from the switch to eliminate that. I wound up having the motor rebuilt.
    '62 LeSabre 4dr. sedan
    '65 Skylark convt.
    '67 Skylark 2dr. hdtp.
    '30 Ford Roadster pickup
    '68 Nova SS
    '69 Z/28 RS apart
    '70 Camaro RS race project
    '71 Z/28 RS
    '73 Beetle convt. project
    '78 Futura
    '78 Fairmont wgn project
    '83 Olds Delta 88 Royale
    '88 Dakota
    '92 Plymouth
    '05 Silverado 4x4
    '14 Dodge Journey Blacktop edt.
    My name's Jerry and I'm a caraholic.

  4. #4
    Join Date
    Jul 2004

    Default Re: wipers not working

    There is an EXCELLENT post on "Team Chevelle" about how to test wipers. Do a search for:

    Understanding Non-Depressed Park Wiper Systems.

    It should be a sticky here. As said, It's all about the grounds. Most times all that needs to be done is take apart the switch & clean the contacts.

    Tom T.
    Tom Telesco
    Classic and Muscle Automotive
    12 Cook St.
    Norwalk, CT 06853-1601
    Day Phone 203-324-6045 ET
    NailHead Mini-Starters '53-'66
    Adjustable Roller Tip Rocker Arms - All NailHeads
    Custom Forged Pistons
    Many parts to numerous to list
    "If I can't get it, you don't need it!"

  5. #5
    Join Date
    Feb 2002
    North Carolina

    Default Re: wipers not working

    Understanding Non-Depressed Park Wiper Systems

    This thread is now a sticky.

    Jim Lore
    BPG 1037
    "If you cannot clear up the confusion at least make the confusion clear."



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