Corvette wiper door troubleshooting Check the wiper door vacuum relay to see if it holds vacuum at the control port. I had replaced ALL vacuum hoses several years ago as part of a total engine compartment rebuild. 1971-1972 Corvette Straight Headlamp & Wiper Door Vacuum Hose Kit Made in USA includes 26 hoses, 3 T-pipes, over 66 feet of color coded striped hoses with raised parallel manufacturers identification marks, made from original St Louis installed assembly line parts. 1) wiper safety switch, 1968-1982 Corvette Headlight And Windshield Wiper Vacuum System Manual/Diagrams. Some of the 1971 late 1972 Corvette early Headlamp & Wiper Door Vacuum Hose Kit with curved vacuum pipe on the wiper door actuator. The wilcox test is ok, no leaks : May 7, 2002 · C3 Tech/Performance - Wiper Door Repair - As I was removing my wiper door recently I discovered that the bolts were corroded so badly that each all 4 snapped in 2 as I attempted to remove them. But be careful, don't just throw a ground on it, it's a complicated and non-intuitive system. 12 Piece by CA-68-72 Corvette wiper door repair kit. Vacuum overhaul kit is designed for the Corvette enthusiast Nov 7, 2015 · C3 General - 72 Corvette base engine headlight and wiper door actuator vacuum diagram and troubles - Does anyone have the vacuum hose diagram and troubleshooting guide for the headlight and wiper door actuators for a 1972 base engine W A/C automatic. Stay till the end of the video for some cool Corvette feat Video Demonstrates Some Trouble Shooting When A 1969 Corvette (C3) Wiper Door Open After Engine Shut Down Or Engine Start Up. Dr Rebuild Corvette Products manufacturing & distributing reproduction parts for 1953-1982 models since 1979. Troubleshooting manual. In addition to removing the windshield Aug 15, 2025 · C3 General - 1969 Wiper Door Staying Open After Startup - Good Morning and looking for some help with my new to me 69 Coupe that I recently purchased. i have replaced the motor and door switch, any - Answered by a verified Auto Mechanic Aug 1, 2014 · Model Year: 1968 Subject: 1968 Corvette Windshield Wiper System - Operation and Diagnosis Source: Chevrolet Dealer Technical Service Bulletin Number: 68-T-34 Date: Mar. How to troubleshoot Windshield Wipers and test wiper motor 1982 Corvette Windshield Washer Tank Installation. Video shows how to test and remove wiper actuator. I have changed the relay/switch valve behind the tach, valve under the wiper arms, the wiper relay on the fender well, all new hoses, the check This Headlight And Wiper Door Troubleshooting Guide is a valuable resource for 1968-1982 Chevrolet Corvette C2 and C3 owners, offering detailed instructions on diagnosing and resolving vacuum issues in the headlight and wiper door systems. The 2nd would be the supply from the wiper switch. The video also shows how replace the Actuator Boot and Web catalog of 2000+ pages, 1000+ illustrations, 12,000+ Corvette restoration parts available mail order. An excellent guide for troubleshooting and testing individual headlight vacuum system components is located on Corvette-101. " The Corvette Wizard By Frank a Pre* Il O 1995 HID AMERI May 31, 2009 · C3 General - Troubleshooting vacuum system for headlight, wiper door - Hello, Today I plan on searching for reasons why the headlight doors and the wiper door doesn't want to open. The wiper door was in the passenger seat with all the tiny screws snapped off and bubba repairs attempted. - I activated the wiper switch to ensure the wiper arms/blades still operated Jun 11, 2006 · C3 Tech/Performance - Wiper door problems - I posted a couple of weeks ago and now have gone through all of those suggestions and everything else I could think of. The video is demonstrated 1968-1982 Corvette Vacuum Troubleshooting Guide at Zip, your source for all C3 Corvette books & manuals for service, restoration or reference. It's been quite a few years since I rewired my car, so my memory is a bit fuzzy and can't give you specifics, but the wiper system uses a ground based switching system, meaning instead of the switch supplying power to the wiper motor, it provides the ground. Vacuum overhaul kit is designed for the Corvette enthusiast Feb 27, 2019 · C3 Tech/Performance - C3 Wiper door removal - For purposes of cleaning, lubing and adjusting, how do you remove the wiper door mechanism? Are the bolts up under the dash visible, accessible? Shop C3 1968-1972 Chevrolet Corvette Wiper Door Link Repair Kit. The video also shows how replace the Actuator Boot and Wiper Door Actuator Door Repair On a 1969 Corvette. K. Jan 1, 2009 · Sincerely I would like to focus on more interesting things but I'm not solving the problem ( I have all the drawings and schematics about the windshield wiper and vacuum system) and the the thing starts to drive me crazy. Got it fired for first time last week, and the wiper door didn't go down. Please contact us if there is a problem and we will do our best to make it right. 99 ea Find your 1972 Corvette wiper motor wiring diagram and easily install or repair your wiper motor. Dec 1, 2002 · We show you how to repair the headlight and windshield wiper door vacuum systems in your 1968-1982 Chevrolet Corvette with this vacuum systems guide - Vette Magazine This Headlight And Wiper Door Troubleshooting Guide is a valuable resource for 1968-1982 Chevrolet Corvette C2 and C3 owners, offering detailed instructions on diagnosing and resolving vacuum issues in the headlight and wiper door systems. Wiper switch works Wiper motor works Wiper door works (goes up & down by using bypass) Wiper arm lock (bypass) works. The best part is the kit uses the same technology as my Killer Light vacuum to electric headlight conversion. 12 Piece - CA at Top Flight Automotive. I've been troubleshooting and have found the following: The wiper switch performs as desired and is grounded. If you have a vacuum leak on the control side of your wiper door circuit,spring pressure in the Wiper door relay valve will cause that valve to port vacuum to the open side of the actuator. I Apr 13, 2008 · C3 Tech/Performance - Wiper door vacuum problems - Here is the issue. If you push the wiper switch in to activate the washer, the Apr 16, 2024 · C3 Tech/Performance - 1971 Corvette Wiper Problems - Hi All and thank you in advance for any and all help. Application. on my 71 the door opens but the wipers wont come on. 61K subscribers Subscribe Dec 15, 2014 · Does any one know how to synchronize the wipers and the wiper door. See related components for additional items. Aug 11, 2021 · There’s a series of videos on you tube made by “Problem Solver Garage” and one of his videos covers headlight vacuum and wiper door vacuum troubleshooting in detail. 95ea 80-89 Owner’s Manual This manual was included in the glove box of your Corvette when it was new. May 23, 2011 · C3 Tech/Performance - 1969 vacuum canister issue - Up until a year ago I had strong vacuum to my wiper door and headlights. The headlights work properly, but when I start the car May 15, 2013 · C3 General - A little help with wiper operation on my '69 - Hi, My wipers won't go on:ack:. Jun 17, 2025 · Make sure the right side wiper arm is pushing down on the wiper door vacuum switch. First I check the obvious things such are We diagnose the and fix the problems with our '69 Corvetter malfunctioning Wiper Door and glacier slow Headlight Doors. ) Made in USA includes 26 hoses, 3 T-pipes, over 66 feet of color coded striped hoses with raised parallel manufacturers identification marks, made from original St Louis installed Apr 21, 2009 · This will ensure vacuum is ported to the closed side of the actuator on start. The wiper door will not open. When I start my 1968 corvette, the wiper door opens. This comprehensive guide walks you through the complete vacuum system with clear diagrams and step-by-step instructions. ) This car belongs to a friend, it's a mess and of course we have no background information. By placing the door in a special fixture we machine out the broken bolt, enlarge and thread the hole in the precise original location, allowing us to Locktite in a specially designed stainless steel threaded insert. I suggest using this Jun 6, 2025 · US MADE 1968 - 1972 Corvette Wiper Door Link Repair Kit 12 Piece C3 NEW Nov 25, 2002 · According to "Troubleshooting the 1968-1982 Corvette Headlight and Wiper Door Vacum Systems" by Frank C. Complete step-by-step diagnosis of your C3 Corvette headlamp and wiper door systems. Your colors may not be visible but this is what they started out as. This guide completely explains how the headlight and wiper vacuum systems are supposed to work and offers troubleshooting procedures for systems that do not work. the PO assured me that everything was working fine before car's shipment . 95ea Troubleshooting the 1968-1982 Corvette Headlight and Wiper Door Vacuum Systems Book #LIT-74 $12. Accomplishing the Impossible. May 5, 2025 · Unlock the secrets to your 1968-1982 Corvette with the **C3 Headlights & Wiper Door Vacuum System Troubleshooting Manual**. com Order Corvette Wiper Door Repair Kit, Stainless Steel, 1968-1972 for only $41. When you are having issues with your C3 Corvette's headlamp and wiper door system, this is the step-by-step guide you need to troubleshoot the cause. 2) when I turn the wipers on the The other feeds the wiper door solenoid controlled by the electric wiper switch. Feb 18, 2014 · C3 Tech/Performance - 68 wiper door won't close - Reading thru different posts most of them refer to 69 and newer cars that have a switch under the wiper arm to close the wiper door the 68's don't have the switch can anyone give me some advice where to look as to why my wiper door won't close? Also will a mity vac Oct 21, 2011 · C3 Tech/Performance - Tech: 72 Wiper Switch & Operations Issue - Have a 72. As i was attempting to extract and them, I discovered that Corvette Central has a repair service for 49. Corvette C3 Complete restoration. The first thing you should do is upload a copy of this file. I have a 1985 corvette with wiper problems. comContact Us Corvetteforum. Zip's 1969 Corvette headlight & wiper door vacuum overhaul includes color-striped vacuum hoses, replacement vacuum check valve, vacuum air filter and pair of replacement headlight actuator front seals. 95ea Headlight & Wiper Vacuum Hoses Also Available CLICK HERE 68-82 Headlight Actuator Relay KIT Comes with 2 RELAYS, Metal Check VALVE & Platic FILTER #2108K $99. May 11, 2014 · C3 Tech/Performance - 69 Wiper Door problem - Been through the entire vacumn/electrical system that has to do with headlights and wipers. The primary vacuum system consists of 24 different lines which are color coded Red, Green, White, Yellow, blue and black. #LIT-57 Call for pricing and Jun 26, 2023 · C3 General - 69 coupe wiper door issue? - Morning fellow forum members I have a wiper issue that just happened yesterday. Headlights work great. The ex-cellent system hose connection diagram from that web site is shown in Figure 4. If you need me to, I'll scan a couple of articles and Email them to you. Jun 24, 2022 · C3 Tech/Performance - 1969 wiper door issue - I am hoping that someone can point me on the right track to troubleshoot my wiper door. Thanks in advance. Clear diagrams and step-by-step guidance! Aug 26, 2006 · The other feeds the wiper door solenoid controlled by the electric wiper switch. Something that will tell me Try Aug 18, 2015 · C3 Tech/Performance - 1969 Wiper Door Problem - When the car is started the wiper door opens and stays open. When I push the button in manually, the wipers go on. 69-72 Corvettes use a different approach, supplying current to the necessary wiper door components. First indication of problems to come was that the prior owner used the wiper door override switch to open the door before turning on the wipers Aug 15, 2010 · C3 Tech/Performance - 1969 Wiper door issue - a couple of vacum lines came loose but before I discovered that I was trying the override and I seem to have messed things up. com *. The car has 35,000 miles. Jun 11, 2012 · CorvetteForum - Chevrolet Corvette Forum Discussion C3 Corvettes, 1968 - 1982 C3 Tech/Performance 71 Wiper Door Opens Apr 1, 2007 · C3 Tech/Performance - Wiper Door Won't Open - Back in early 2005, I started diagnosing a stubborn wiper door and hesitant wipers on my '69 L46. 68-72 Corvette C3 Windshield Wiper Door and pop up When you are having issues with your C3 Corvette's headlamp and wiper door system, this is the step-by-step guide you need to troubleshoot the cause. Mar 12, 2018 · When Chevrolet changed the Corvette's hood for 1973, eliminating the concealed windshield wiper cowl door, changes were made to the vacuum system, which remained virtually unchanged from 1974-'79 1972 Corvette Wiper and Wiper Door - Part 5 Wiper Door Assembly and Test 7M Attend Peaceful "No Kings" Rallies | Trump Dumps On Times Square | George Santos Is A Free Man 1969 Early (= wiper relay on Rignt fender) Corvette Headlamp & Wiper Door Vacuum 12"x18" Poster includes a Full Color detailed schematic identifying all the various valves, relays, switches & hoses with instructions for all the Color Coded connections. Shop restoration car parts and accessories at Ecklers. Kit includes 4 Pivot Bolts and 8 Bushing Halves. Step-by-step troubleshooting the vacuum system for the Corvette C3 pop-up headlights and Windshield wiper door. Can the wiper door be manually opened and closed? How would you do that? Nov 11, 2025 · Up for sale is a New 1968 thru 1972 Corvette Windshield Wiper Door Linkage Repair Kit. I replaced the switch last year and they worked but the aftermarket switches are junk. The CA Wiper Door Link Repair Kit fits 1968-1972 Chevrolet Corvette C3 models. Jul 5, 2021 · CorvetteForum - Chevrolet Corvette Forum Discussion C3 Corvettes, 1968 - 1982 C3 General Wiper Door, Headlight Vacum System Troubleshooting Aug 7, 2016 · C3 General - Wiper Door Repair - Do you guys have any suggestions on how to repair the wiper door on my '71? The 4 holes on the side are pretty damaged. The headlights are stuck in the up position. Inspect wiring for corrosion or loose connections. Dr Rebuild Corvette Products manufacturing & distributing parts for 1953-1982 models for 22 years. I would have thought there would be two (2) supplies, one via ignition sw allows motor to return after wiper switch is turned off. When I activate the wiper switch, I hear a click. 1) The overide switch works but is backwards - down is closed, when up should be closed. Corvette C3 Windshield Wipers repair fix. Sep 27, 2007 · CorvetteForum - Chevrolet Corvette Forum Discussion C3 Corvettes, 1968 - 1982 C3 Tech/Performance 1972 Wiper door and wiper problem Troubleshoot your 1968-1982 Corvette's headlight and wiper door vacuum system with our easy-to-follow manual. TROUBLESHOOTING THE 1968-1982 CORVETTE HEADLIGHT AND WINDSHIELD WIPER DOOR VACUUM SYSTEM. Repair it yourself for LESS! Our decades of excellent customer service on Ebay shows in our Feedback. I suggest using this Web catalog of 700+ pages, 1000+ illustrations, 12,000+ Corvette restoration parts available mail order. Is there a thread or post I can get to troubleshoot the wiper door operation?:flag: Jun 24, 2024 · C3 General - Headlights and wiper door - I just bought a 1972 C3 Corvette. The wipers work, but not when I slide the slider to the right, only with the wiper override under the steering wheel. 68 Corvettes control the wiper door in conjunction with the wiper motor, using the wiper switch, opening and closing the grounds circuits as necessary. The 1969 Corvette is an iconic American sports car known for its sleek design and powerful performance. 99 ea Corvette Wiper Door Actuator Boot, 1968-1972 Model: 1009927 Condition:NEW … $16. I have my wiper door off. The headlights and wiper door do not work. Wiper door opens when you turn the wiper switch on however the wipers do not activate. As part of the sale, there were a few things needing attention (AC hi speed blower fan, parking brake replacement, etc) that the prior owner agreed to fix using a While repairing my wiper motor, I twisted off a bolt in the wiper door framework. 11, 1968 To: All Chevrolet Dealers This bulletin is being published as an aid to understand and to easily diagnose 1968 Corvette windshield wiper system. The wipers and headlights work fine, but the door stays open unless I close it manually after the car is turned off. At car arrival in Italy ( 2-3 months total time . The wiper motor is getting power and Apr 20, 2025 · 1969 Corvette Vacuum Hose Diagram 12Apr2024 PDF A technical diagram detailing the vacuum hose layout for a 1969 Corvette. Neither were working when I bought the car a little over a year ago. Includes 3 molded hoses, 2 for the wiper door actuator plus 2 others (not even listed by zip. I think about every C3 owner out there has had some sort of problem with their headlights opening and closing; and it's not easy to fix them without a good guide. Wiper Motor Bench Test 68 Ver 1 Oct 24, 2002 · C3 Tech/Performance - Need some help troubleshooting a wiper door on a 70 - Well here's the story. We have a repair and solution in one. S1E10 Corvette C3 windshield wiper repair. Saves buying parts not needed. Mar 31, 2008 · C3 Tech/Performance - 1968 Wiper Door Actuator - Has anyone successfully cured a vacuum leak in the wiper door actuator? While troubleshooting our vacuum system, determined we've got a serious leak in that actuator. Apr 21, 2009 · This will ensure vacuum is ported to the closed side of the actuator on start. :crazy: Everything works fine except now, when I shut the car off after about 15-20 seconds, the wiper door pops up. Is it suppose to open automatically when ever you crank the car up? Any help will be appreciated. C3 Corvette Stingray Windshield Wiper Door Solenoid Replacement Mike Hammill 1. "One of the biggest problems with owning a 1968-1982 Cowette is keeping the headlights and windshield wiÞer door operating. Click on the vacuum system graphic below to enlarge for printing or to save to your hard drive. Aug 3, 2016 · C3 General - Wiper Door Repair - Do you guys have any suggestions on how to repair the wiper door on my '71? The 4 holes on the side are pretty damaged. The layout is color-coded to differentiate the hoses and clearly shows the connections between individual Troubleshooting the 1968-1982 Corvette Headlight and Wiper Door Vacuum Systems Book #LIT-74 $12. Aug 28, 2015 · C3 General - 1969 corvette wiper problems need help please - hi im restoring 69,switched over to electric headlight kit,did away with wiper door use the longer hood,got everything electrical working but these wipers got me stumped,frame off restored all new wire harness all gauges lights all good,new wiper motor and I decided to put together a vacuum troubleshooting because their just isn't a free one on the internet I could find. The system is a double articulating, overlapping type in which the blades Wiper door failing to open and persistent wiper override light activation are common issues. The wipers not working is most likely a wiper motor issue but you could have a secondary problem which caused the wiper motor to quit working in the first place. This guide completely explains how the headlight and wiper vacuum systems are supposed to work and offers troubleshooting… $21. Eight (8) door linkage bushings and 4 linkage pivot bolts. If I manually open door using under This video shows how to adjusted the windshield Wiper Door on a C3 Corvette (early model). Classic problem. Popping up, Slow, Headlights don’t come up or go down together. Nov 10, 2014 · C3 Tech/Performance - '69 wiper door repair - Pretty unique problem that i need some help/advice on. I was wondering what I should check first. :cheers: Troubleshooting manual. 00set Jan 18, 2007 · C3 Tech/Performance - Wiper door issues - My 70 Corvette windshield wiper door does not operate properly. May 5, 2009 · Or, your windshield wiper work but when you turn them off, they stop on top of the windshield which blocks your view. A problem with the 68-72 wiper doors is broken bolts. Wiper Door Actuator Door Repair On a 1969 Corvette. Same for the wiper door. The manual override switches at the bottom of the dash interrupt the continuation of vacuum pressure to the upper caps on the relay valves for the headlight and wiper doors. May 15, 2012 · I'm considering retaining the original vacuum actuator but controlling it electronically with a solenoid rather than via the series of vacuum lines and switches. The wipers work, Find C3 Corvette 1968 to 1972 exterior parts and accessories for sale at Volunteer Vette Products. How to fix your windshield wipers on a Corve Sep 3, 2006 · C3 General - Anybody has a Corvette Headlight & Wiper Door Troubleshooting Guide? - Hi, My headlight and wiper door are not working. If you push the wiper switch in to activate the washer, the Jan 23, 2022 · Hi On my 69 I’m having several problems with the hood & wiper door hood not operating properly. This diagram illustrates the routing of vacuum hoses connected to various components such as the wiper door actuator, headlight actuators, solenoids, and a vacuum tank. I will go through the entire wiper electrical system, testing and troubleshooting each component. (no door/relays etc) and the switch may be different. What I ended up doing was drilling the damaged areas The wiper door actuator in the 1968 Corvette may fail due to a faulty vacuum motor or vacuum line leaks, causing the door not to open without override. Here are the problems. 1968 - 1972 Corvette Wiper Door Link Repair Kit. Both the headlights and the wiper door stopped working. Any ideas what the problem is? Jun 20, 2002 · There is a good trouble shooting guide in the workshop manuals and some in the past issues of Corvette Fever and Vette. 1970 corvette comes in with a list of problems, of course leading the list is no wipers and no headlights. How to test windshield wiper motor. when I turn off my wipers the door catches them, the door catches the arm of the wiper before they get under the door Thanks K. storage-container-and not exhactly a gentle Sep 23, 2005 · This week progress on cleaning out the engine bay continues with the removal of the windshield wiper system. You will need: 1. The biggest problem I am having is where they should be located. When I start my 69 coupe the wiper door opens up without any switches (wiper or manual under the dash) being activated. Our overhaul kits features an illustrated diagram PLUS an informative guide for troubleshooting all 1968-1982 Corvette vacuum system. Trying to knock out some simple things up front and get parts on the way 1969 Deluxe headlight vacuum overhaul kits include hose for the wiper door system but do not include actuator, relays or wiper door vacuum valve. Prow II booklet I purchased from ZIP several years ago, you should have 18-20 in/HG at the manifold. Dec 8, 2004 · Wiper door will go down (after being forced up) when i slide the slider back to the off position. This system controls the head lights and wiper door assembly on the car. Like most other things on Corvettes, there are many pieces that make up the working wiper linkage and wiper door. . To: All Chevrolet Dealers This bulletin is being published as an aid to understand and to easily diagnose 1968 Corvette windshield wiper system. A left hand 1997 May 27, 2009 · How do you manually open and close the wiper door? My 69 vette is having some vaccum issues. Oct 14, 2009 · C3 Tech/Performance - Wiper Door Won't Close - Just picked up my 72' so bare with me. As near as I can figure, it is the (img. Now these two problems are not both a wiper motor problem. The vaccum problem can wait, but I am in need to open the wiper door for some other repair. May 16, 2014 · Hi everyone, My new '69 Corvette has non-functioning wipers. When I got my car it was a mess and I was less informed. I got the wipers to work again but the door would not pop l had to gently lift it. The video shows step-by-step procedures. If the engine is running it operates exactly as it should. This motor has 4,000 miles on it despite being installed 20 years ago. Someone has tried to repair this before and the hole locations look way off. Fortunately, the system is pretty robust and is surprisingly easy to diagnose if problems occur. Jun 3, 2017 · The door goes up automatically when you turn the system on. great the two fun parts to troublshoot immediately pops into my head. Apr 16, 2024 · C3 Tech/Performance - 1971 Corvette Wiper Problems - Hi All and thank you in advance for any and all help. Is this guide a good starting point? I'm looking for a step by step instruction on how to diagnose the problem. Need help with wiper door - Corvetteforum. Looking for some experienced way to check out the associated parts. You can push it close after the engine is turned off. From what I have gathered so far from this forum and information Feb 22, 2020 · C3 General - 71 wipers not working - could use some help with my wipers please. Records indicate the dealer in ?95 burned up another new motor due to Zip's 1970 Corvette headlight & wiper door vacuum overhaul includes color-striped vacuum hoses, replacement vacuum check valve, vacuum air filter and pair of replacement headlight actuator front seals. Kit includes 4 bolts and 8 washer. One of the joys of working on a 50-year-old car C3 General - 69 wiper door repair - Anybody ever use Corvette Central service to redrill and tap a broken thread in a wiper door? I broke one and taped it myself but not havin a jig, it sits about 1/4 inch high on the windshield side, drivers side. 99 in our huge selection of parts. #VHR200 $4. Jun 20, 2013 · C3 Tech/Performance - Wiper Door Won,t Open on my 71 - I just bought a 71 convertible and can't get the wipers to work. Additionally, the wiper motor linkage or switch contacts can wear out, leading to incomplete wiper movement. They advertise Apr 13, 2002 · C3 Tech/Performance - more wiper door problems electrical ? - the wipers and wiper door stopped working on my 69 i i think it might be more than just 1 problem i've always had to use the switch below steering wheel to keep door open. In addition to the primary system, there is an environmental vacuum system which controls the ductwork which directs AC and Heating Jun 25, 2006 · I finally figured out a neat clean way to make a kit available to convert your wiper door from vacuum to electric. Aug 27, 2025 · This repair kit includes 12 pieces of wiper door linkage for 1968-1972 C3 Corvette models. From restoration to performance we offer the highest quality parts & accessories for your project. Jun 3, 2008 · C3 Tech/Performance - 1969 wiper problem! Help - I am working on a 1969 Corvette for my son's friend's Grandfather. Jun 30, 2012 · The wiper switch does need a ground. I'm don't know where to start looking. Browse our selection of products or call us today at 865-521-9100 for more assistance! Apr 19, 2018 · C3 Tech/Performance - 1968 Wiper Door Issue - I've got a 1968 convertible that for the past two months I've been going through the headlight and wiper systems. A Killer Wiper Bracket kit 2. Nov 25, 2022 · The vacuum operated headlights and windshield wiper doors that debuted on the 1968 Corvette presented a new type of system to most mechanics and car owners. These parts will help to improve the functionality of your wipers and ensure that they work smoothly. a pretty image. Mar 13, 2017 · C3 Tech/Performance - Wiper door vacuum troubleshooting - I am resurrecting a 70 LS5 that's been sitting for over 20 years. Contains operating instructions, maintenance, lubrication, minor troubleshooting and specifications. The manual override switches at the bottom of the dash interrupt the continuation of vacuum pressure to the upper caps on the proportioning valves for the headlight and wiper doors. Feb 27, 2024 · A technical documentation that provides a detailed procedure for diagnosing and troubleshooting issues related to the wiper door mechanism in vehicles. they beat but dont move. A 1-hour project turned into an all-day project very quickly. To begin I started by taking apart the wiper linkage which is located beneath the wiper door which was removed earlier in the project. 1968 Corvette Wiper Motor Testing and Schematic 68 Only Revised 03-2012 Then book mark this link, there is a ton of info here: 1968 Corvette Wiper Motor Tech and Help Pages. I know somewhat about the limit switch - I read the Willcox paper on it. Sorry I cant offer more as mine is a 78. if the door opens and the wipers work then you know you have a vacume problem . Oct 12, 2008 · Manualy activate the wiper door by going through the hole in the actuater (remove the black rubber plug) with a screw driver. Specify year. When I start the car the wiper door raises for a couple minutes then goes down. with engine off I opened wiper door manually and when I Apr 24, 2015 · Also buy yourself "Troubleshooting The 1968-1982 Corvette Headlight and Wiper Door Vacuum Systems" from Zip or Paragon. The wiper door on the 1969 Corvette is 1968-1982 Corvette Headlamp & Wiper Door Vacuum Troubleshooting Guide was written by DocRebuild & illustrates how to test each individual headlamp and/or wiper component part to determine if it is functioning properly. The prior owner of my car said the wiper motor was shot. Jul 19, 2015 · 72 wiper motor not working. Is there any sort of "limit switch" in the actuator to control how far it travels? Or does it just go until the door hits the limit Nov 7, 2024 · Joined: Aug 2007 Posts: 235 Likes: 0 Wiper door control valve - complete vacuum test Hello all, I have just received my wiper door control valve from ZIP Corvettes. to start l have some skills on this stuff l need some advise however, to start my 69 wipers were fine and just stopped working. But one unique feature that sets it apart from other models is its wiper door mechanism, which is operated by a vacuum system. I've been working my way through and think I have fixed all the vacuum problems but one, and I think I have an electrical problem with the wipers . Corvette C3. Customer: wiper door on 1971 corvette will not open,lights are fine dont know if wipers work or not Feb 16, 2017 · C3 Tech/Performance - 1968 Wiper Troubleshooting - I?m trying to get my wipers going on my ?68. It is priceless to have in your library for these cars. Understanding the vacuum diagram for the wiper door is crucial for maintaining and troubleshooting this unique feature. the main thing to remember with Vette wipers is when you turn on the switch it grounds the system causing the wipers to work, so conventional troubleshooting techniques do not work. Check the switch located under the dash that controls the wiper door; it may be stuck or faulty. The wiper over ride switch and the wiper door interlock switches behave as required. My '72 wiper door comes open after you start the engine and will not go shut (other than manually closing it after you shut off the car). Combining durability, ease of installation, and OE compatibility, this kit is an excellent solution for restoring the performance and appearance of your classic Corvette’s wiper system. Normal operation of car, turn wipers on by switch, they do not come on. The slider appears to be functional for the wiper door although it's not going up (though it is trying). I tried them today and wont come on again. Apr 20, 2025 · C3 Tech/Performance - 69 windshield wipers troubleshooting help ! - Hi everyone, just signed up here 🙂. Nov 10, 2025 · This is a brand new 1968 - 1972 Corvette Windshield Wiper Door Link Repair Kit Twelve (12) piece set. Have a 71 Coupe with a wiper problem that is driving me crazy. The DS headlight occasionally will pop up and the lights flicker and go out, so it sounds like vacuum lines and wiring are running into Jul 1, 2025 · C3 General - Headlight/Wiper Door Vacuum Repair - The simple question is, do we frown on tie wraps? I just completed going through all of the components, replaced a bad check valve and a bad relay and replaced all of the vacuum tubes. Jul 11, 2019 · C3 Tech/Performance - 68 vette wiper wiring and operation - I working on a 68 with wiper electrical and vacuum problems (not to mention headlight vacuum problems. 00kit 70 Vacuum Hose Clamp Set 12 pcs set #VHR-300 $48. Get detailed instructions and diagrams to ensure a successful wiper motor wiring project for your classic car. The wiper override light in a 1968 Corvette signals a malfunction in the wiper door mechanism. When I turn the headlights on they turn on but there is no movement at all. There is power to the Oct 29, 2016 · been working on a 68 vette basket job that has been in a couple of shops for over a year and had some bad experiences, when I took over the car it was a running roller painted and most of the parts in boxes, down to the wipers , now here is the problem wiper motor will not run , has new motor Aug 1, 2007 · Current was cut to the wiper motors armature when the override switch was turned on or off. i've had car painted and some starter work done i just put on new headers found small 1971-1972 Deluxe headlight vacuum overhaul kits include hose for the wiper door system but do not include actuator, relays or wiper door vacuum valve. 00. I also replaced the headlight actuators and had the original coffee can style wiper door actuator Aug 23, 2007 · Reply Subscribe Tags 1971, 71, assembly, corvette, diagram, door, system, troubleshooting, windshield, wiper, wiring Back to Subforum C3 General View Next Unread Mar 17, 2008 · Subscribe Reply Subscribe Tags 1968, 68, 72, 8107501472, c3, corvette, door, fix, fortier, metal, problem, repair, richard, windshield, wiper Back to Subforum C3 Tech/Performance View Next Unread I decided to put together a vacuum troubleshooting because their just isn't a free one on the internet I could find. pfaafz yrmbtx znp iavk ukioi ftxsv sxnj iej kszya wzviez mkke bzuvgnc qzxji spyjs bglddy