1980 intermittent wipers
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 2,503
Likes: 33
From: McGrady NC
St. Jude Donor '15-'16
1980 intermittent wipers
The delay setting for my wipers does not work. I have replaced the switch and the wiper motor itself and I do have low and high speed wipers. I have read that if the relay switch/relay failed the wipers would not work at all. Is this a problem with the old cover that I had to put on the new wiper motor or is the relay itself failing or failed? How can I test it?
Pro
Joined: Aug 2013
Posts: 591
Likes: 3
From: Monroe Washington
Wilcox has got great info!
http://willcoxcorvette.com/instructi...nstruction.pdf
After looking through this, I plan to do this very thing to mine ... Everything works as it should, but when I use the intermittent wipers I get a start /stop hitch through its range of travel... Gets annoying when they stop for a sec right in your field of view... Looks straight forward...
Sorry , didn't see you already replaced the switch ... Do you still have the old one to clean and retest?
http://willcoxcorvette.com/instructi...nstruction.pdf
After looking through this, I plan to do this very thing to mine ... Everything works as it should, but when I use the intermittent wipers I get a start /stop hitch through its range of travel... Gets annoying when they stop for a sec right in your field of view... Looks straight forward...
Sorry , didn't see you already replaced the switch ... Do you still have the old one to clean and retest?
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
The delay setting for my wipers does not work. I have replaced the switch and the wiper motor itself and I do have low and high speed wipers. I have read that if the relay switch/relay failed the wipers would not work at all. Is this a problem with the old cover that I had to put on the new wiper motor or is the relay itself failing or failed? How can I test it?
On my 79, I installed 2 jumper cables to bypass the relay so I only had fast and slow speeds.
I've bought a new module for my 81 but haven't got around to fitting it yet.
Iirc, the problem with the original module was that on intermittent speed it sent full electrical current through some of the components which simply gave up.
Good luck getting it sorted.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Casey... I posted in your other thread some info to help figure out the issue with your wiper motor..
More info that comes to mind.. The wiper cover has a timing lever on it too.. but this just tells the box where the wipers are at.
If you bypass the controller, you'll know if this is the issue or not.. and probably the best way.. I do know there have been issue with the repro delay modules and at one point we were going to make them but the vendor got the issues fixed, then had more so I don't know where Im at on this... I even thought about asking the vendor is he wanted us to make the controller card..
I'm not sure if you saw that post or not but here is a copy.
Casey-
I would start by testing the motor to see if it works properly.
1973-1982 Wiper Motor Testing.
Then if the motor runs, I'd take a hard look at the wiper controller (located under the rear compartment). This module is available in reproduction but you may just want to by-pass it. I have the connector for doing this on our site and it would solve the mystery before you spent money on the module.
http://willcoxcorvette.com/product_i...ducts_id=28228
And for testing the switch (you remove it by taking out the speedo/tach housing).
Corvette Speedometer and Tach Housing Removal Instructions 1978-1982
More info that comes to mind.. The wiper cover has a timing lever on it too.. but this just tells the box where the wipers are at.
If you bypass the controller, you'll know if this is the issue or not.. and probably the best way.. I do know there have been issue with the repro delay modules and at one point we were going to make them but the vendor got the issues fixed, then had more so I don't know where Im at on this... I even thought about asking the vendor is he wanted us to make the controller card..
I'm not sure if you saw that post or not but here is a copy.
Casey-
I would start by testing the motor to see if it works properly.
1973-1982 Wiper Motor Testing.
Then if the motor runs, I'd take a hard look at the wiper controller (located under the rear compartment). This module is available in reproduction but you may just want to by-pass it. I have the connector for doing this on our site and it would solve the mystery before you spent money on the module.
http://willcoxcorvette.com/product_i...ducts_id=28228
And for testing the switch (you remove it by taking out the speedo/tach housing).
Corvette Speedometer and Tach Housing Removal Instructions 1978-1982
Last edited by Willcox Corvette; Jun 27, 2014 at 03:29 PM.
