locks wipers up to change blades.
Whats this?
Thread Starter
GM Cert Corvette Tech
Joined: Apr 2008
Posts: 2,559
Likes: 585
From: Anaheim Hills California
Thanks
Is that switch supposed to be Hot?
And whats its function?
All vacuum lines are right but the door wont come up when I turn on the wipers...It will come up when I pull the vacuum override....And when I turn on the wipers With or Without the override switch pulled I can hear relays clicking but no wipers.
Is that switch supposed to be Hot?
And whats its function?
All vacuum lines are right but the door wont come up when I turn on the wipers...It will come up when I pull the vacuum override....And when I turn on the wipers With or Without the override switch pulled I can hear relays clicking but no wipers.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
That toggle switch has been added by a PO. What does it do when you flip it? It could be a cheap 'security' system if car won't start when flipped. Your problem with the wiper door is likely the wiper solenoid switch which is mounted to the back side of your tachometer. (Yep, you heard right.) You can remove it and try to clean it. The electrical connection is 12v. feed from the wiper switch; the vacuum line goes to the wiper door actuator relay (front-right fenderwell). Usually that device still is functional but is gummed up or clogged up. You can try cleaning it and power it with 12v. to see if you get a 'click'. If so, the solenoid works and the device shouldn't need replacing. If it doesn't function, buy a new one from ZIP products or lectriclimited.com .
Team Owner
Joined: Aug 1999
Posts: 42,487
Likes: 47
SPARTAN
CI 3-4-5-6-8-9-10 Vet
CI-9 AutoX Winner
CI-3 Go Kart Champ
St. Jude '03-'04-'05-'06-'07-'08-'09-'10-'11
The switch that the arrow is pointed to is a wiper cutoff as stated earlier. It should be a normally-ON switch. The way it's used is to turn the wipers on and flip that switch when the wipers are up on the glass. That disconnects the wiper motor and freezes the wipers on the glass so you can change the blades or do whatever maintenance you need.
Team Owner
Joined: Aug 1999
Posts: 42,487
Likes: 47
SPARTAN
CI 3-4-5-6-8-9-10 Vet
CI-9 AutoX Winner
CI-3 Go Kart Champ
St. Jude '03-'04-'05-'06-'07-'08-'09-'10-'11
Good news is it's a simple fix once you get to it. Bad news is the backside of the tach is one of the least accessible places on the entire car.
The wiring diagram should be in any service manual (even the Chilton)
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Thread Starter
GM Cert Corvette Tech
Joined: Apr 2008
Posts: 2,559
Likes: 585
From: Anaheim Hills California
Ok heres where I'm at....Ckecked wiper fuse its good.Checked power to the vacuum solenoid with wiper switch on...No power.....Feed power to the vacuum solenoid and the door opens.But the wipers still wont work....I can hear relays clicking when I switch the wipers on and off but no wipers.Now what do I look for?and where does the vacuum solenoid get its power from?
Last edited by Douglas Mariani; Jul 30, 2008 at 10:53 PM.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Thread Starter
GM Cert Corvette Tech
Joined: Apr 2008
Posts: 2,559
Likes: 585
From: Anaheim Hills California
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
If the upper portion of your center cluster is broken be careful when touching the metal and turning the wiper on...if it has lost its ground it will try to ground through you and shock the sh.. out of you.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
If the car is a 1968 here is a schematic that may help you too!
http://willcoxcorvette.com/repairand...lp.php?hID=201
Here is a wiper motor test that may help you too!
http://willcoxcorvette.com/repairand...lp.php?hID=195
Willcox Inc.
http://willcoxcorvette.com/repairand...lp.php?hID=201
Here is a wiper motor test that may help you too!
http://willcoxcorvette.com/repairand...lp.php?hID=195
Willcox Inc.
Thread Starter
GM Cert Corvette Tech
Joined: Apr 2008
Posts: 2,559
Likes: 585
From: Anaheim Hills California
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
You really need to let me know if it's a 1968. The 1968 schematic is nothing like any other car! The switch on the 1969-1972 car was a red wire with a white stripe and hot all the time. The 1968 cars this was different!
Even the power up method of the motor was different. The 1969-1982 motors basically power up and test the same way, but the 1968 is the odd man out on this.
Willcox
Even the power up method of the motor was different. The 1969-1982 motors basically power up and test the same way, but the 1968 is the odd man out on this.
Willcox
Thread Starter
GM Cert Corvette Tech
Joined: Apr 2008
Posts: 2,559
Likes: 585
From: Anaheim Hills California
If the car is a 1968 here is a schematic that may help you too!
http://willcoxcorvette.com/repairand...lp.php?hID=201
Here is a wiper motor test that may help you too!
http://willcoxcorvette.com/repairand...lp.php?hID=195
Willcox Inc.
http://willcoxcorvette.com/repairand...lp.php?hID=201
Here is a wiper motor test that may help you too!
http://willcoxcorvette.com/repairand...lp.php?hID=195
Willcox Inc.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Yup, I see you online checking it out.
Boy, I'd rather take a beat down than run a issue on a 68, but. . . If you want to email me direct. I'm looking at a few other questions and then packing it in for the night, but I think I can help you figure this out.
The self power up test on the one link will help you rule out the wiper motor. After that it becomes interesting.
Willcoxcustomerservice@willcoxcorvette.c om
Willcox
Boy, I'd rather take a beat down than run a issue on a 68, but. . . If you want to email me direct. I'm looking at a few other questions and then packing it in for the night, but I think I can help you figure this out.
The self power up test on the one link will help you rule out the wiper motor. After that it becomes interesting.
Willcoxcustomerservice@willcoxcorvette.c om
Willcox