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Topic: 1977 Winshield Wiper Problem

in Forum: C3 Cooling and Heating Systems


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1977 Winshield Wiper Problem (1/2)
 1/21/08 6:12pm
fowler12
Former Member

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Toledo, OH - USA

Vette(s):
1977 auto.L48 383 stroker


Joined: 2/22/2007
Posts: 175

Hello, I have a 77 and am having problems with my windshield wipers.  They do not work at all and I really don't know where to begin to fix this.  Can someone please help guide me through this and tell me where to start troubleshooting!  Thanks, I appreciate everyone's help with this.
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1977 Winshield Wiper Problem (2/2)
 1/21/08 10:51pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

First, check all your fuses. Then check to see if there is voltage on the yellow wire, on the wiper motor, with the key on.
If the fuse is good, and you have 12v on the yellow wire, check to make sure the solid black wire next to the blue wire goes to a good ground.
If those things check out, try grounding the other black wire(next to the yellow wire), or the light blue wire. If you have 12v on the yellow, and ground the light blue wire, the wipers should work. If they do not, the wiper motor is prolly bad. If the wipers DO work like that, then you have an issue with the wiper switch, or the wiring from it to the motor...unfortunately, the wiper switch on a '77 is on the turn signal stalk...not exactly the easiest thing to check, OR replace...

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