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07-24-2020, 01:10 AM | #1 |
Registered User
Join Date: Feb 2020
Location: Rochester, NY
Posts: 200
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Fixing non-working windshield wipers....
Going to get into fixing the windshield wipers that haven't worked since I bought my 1968 C10 a couple months ago. Looked at a few past threads and I figure I have a plan of attack on troubleshooting it but I have two questions-
1. Should a 68 have a one or two speed wipers? Or were both options? 2. Do I have to remove anything under the dash to get to the motor and the wiring attached to it? Thanks for the help! |
07-24-2020, 08:14 AM | #2 | |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,772
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Re: Fixing non-working windshield wipers....
Quote:
1. They are two speed wipers with non-depressed park. 2 . Maybe if you have A/C, otherwise you shouldn't have to remove anything under the dash. You will have to remove the wiper blades & cowl vent to remove the clip on the wiper arm. http://67-72chevytrucks.com/vboard/s...d.php?t=413551 LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 07-27-2020 at 10:03 AM. |
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07-24-2020, 08:17 AM | #3 |
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Join Date: Sep 2016
Location: Ozark, MO
Posts: 573
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Re: Fixing non-working windshield wipers....
Check the simple stuff first. Fuses, etc. Next i would check that your switch is getting good ground to the dash. NOTE> the wipers are always powered and when you turn the switch it provides the ground.
In my experience the problem is usually not the motor. |
07-24-2020, 08:24 AM | #4 |
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Join Date: Aug 2019
Location: Cheraw
Posts: 1,300
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Re: Fixing non-working windshield wipers....
With the key on check for power at the motor. If you have power then ground the out the ground wire at the motor. If the motor works, ground out the the ground wire at the switch. If the motor works check to see if the switch has a ground.
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07-24-2020, 08:46 AM | #5 |
Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Fixing non-working windshield wipers....
I'd invest in one of these, https://www.classicparts.com/1968-Sh...ctinfo/04-026/ My 72 manual says if the parking brake assembly is located on the vertical surface of the cowl front panel, (directly below the wiper motor) you must remove the parking brake assembly attaching bolts (4) to allow shifting of the assembly rearwards to allow access for removal of the wiper motor. You can use a cotter pin removal tool or a large dental pic with a 90 degree bend on the end to reach through the cowling to remove the wiper motor drive rod retainer, the wiper drive rods slip off the shaft. The left defroster vent duct will have to move, it's a slip fit. Disconnect the washer hoses and electrical connections, then remove the motor...
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American" |
07-27-2020, 03:47 AM | #6 |
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Join Date: Feb 2020
Location: Rochester, NY
Posts: 200
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Re: Fixing non-working windshield wipers....
I got lucky. Fuse holder (not even the actual fuse) was corroded and covered in Arizona dirt/sand. Cleaned it up and boom it works. I will say I don’t notice any discernible difference between low and high speed (tested on a dry windshield), but that seems to be a common complaint with these trucks.
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07-28-2020, 12:19 AM | #7 | |
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Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,322
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Re: Fixing non-working windshield wipers....
Quote:
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Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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07-28-2020, 01:37 AM | #8 | |
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Join Date: Apr 2015
Location: East Tn (In the heart of the Smoky Mtns)
Posts: 1,887
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Re: Fixing non-working windshield wipers....
Quote:
Fix 1: there’s a vendor that makes a delay switch that can be hooked into the stock switch. Fix 2: put an upgraded pump from an S-10 in (there’s many threads on this) Or Fix 3:“Force Prime” the pump and run washer tubing up the underside of the wipers to get a better spray. I did the the #3 and it works quite well |
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07-28-2020, 07:52 AM | #9 | |
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Join Date: Oct 2015
Location: Protection S.Dakota
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Re: Fixing non-working windshield wipers....
Quote:
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