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1968 wiper trouble

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Old Aug 29, 2006 | 09:30 AM
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Default 1968 wiper trouble

Hi all, on my way home last night from Corvettes@Carlisle, the wiper door on my '68 opened but all I got was a wiper overide light on the console and no wipers. I had to make the entire 3 hr drive home in pouring rain with no wipers. I seem to remember this happening once before but I can't remember what I did to correct it? I did notice that the wiper motor is extremely hot but I'm not sure if its the motor itself that is hot or just the case because of the heat generated by the engine. The fuse isn't blown. Can anyone tell me where to start looking???
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Old Aug 29, 2006 | 10:04 AM
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Originally Posted by ztnark
Hi all, on my way home last night from Corvettes@Carlisle, the wiper door on my '68 opened but all I got was a wiper overide light on the console and no wipers. I had to make the entire 3 hr drive home in pouring rain with no wipers. I seem to remember this happening once before but I can't remember what I did to correct it? I did notice that the wiper motor is extremely hot but I'm not sure if its the motor itself that is hot or just the case because of the heat generated by the engine. The fuse isn't blown. Can anyone tell me where to start looking???
Did you happen to do starter work and get the ground wire that goes on the block connected to the pos. term. on solenoid?
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Old Aug 29, 2006 | 10:47 AM
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Check the ground on your override switch under the dash also.
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Old Aug 29, 2006 | 11:12 AM
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Default wiper problem

thanks to both of you, I didnt touch the starter at all but will go to the ground first
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Old Aug 29, 2006 | 11:38 AM
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Originally Posted by ztnark
thanks to both of you, I didnt touch the starter at all but will go to the ground first

If the overide switch checks out, also look to see if the plunger is engaging the microswitch under the hood, and the the switch itself is good.

On the 68 wiper motor there are three wires one goes to to 12 v+ on the light switch/ ignition switch circuit,. one goes the the wiper solenoid for ground on the back of the tack, the third goes to the microswitch on the firewall which prevents that blades from operating till the door is fully open.

hope that helps


tim



Tim

Last edited by sweethence; Aug 29, 2006 at 11:53 AM.
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Old Aug 29, 2006 | 01:56 PM
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Thanks Sweethence it is a help to find out where the wires are headed.
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Old Aug 29, 2006 | 04:58 PM
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Originally Posted by ztnark
Hi all, on my way home last night from Corvettes@Carlisle, the wiper door on my '68 opened but all I got was a wiper overide light on the console and no wipers. I had to make the entire 3 hr drive home in pouring rain with no wipers. I seem to remember this happening once before but I can't remember what I did to correct it? I did notice that the wiper motor is extremely hot but I'm not sure if its the motor itself that is hot or just the case because of the heat generated by the engine. The fuse isn't blown. Can anyone tell me where to start looking???
Have you figured this out yet? PM sent, AL.
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Old Aug 29, 2006 | 05:04 PM
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Default 68 Corvette Wiper Problems

After doing all the wiring and easy ground checks do a wiper motor performance test, here is the chart.... AL.
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Old Aug 29, 2006 | 05:05 PM
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Originally Posted by IDOXLR8
After doing all the wiring and easy ground checks do a wiper motor performance test, here is the chart.... AL.
The picture stinks so I can e-mail it to you, AL.
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Old Aug 29, 2006 | 07:07 PM
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Originally Posted by IDOXLR8
The picture stinks so I can e-mail it to you, AL.
Al,

Would you share all the info you've got on this subjuct. I've had this problem for awhile now.

Vette wouldn't even be on the road if it weren't for a friend doing my inspections

Rick
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Old Aug 29, 2006 | 08:03 PM
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[IMG][/IMG]

Noticed Al isn't online now so I'll see if I can help
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Old Aug 29, 2006 | 08:57 PM
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Thank-you kind sir
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Old Aug 29, 2006 | 11:18 PM
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Welcome
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Old Aug 30, 2006 | 12:32 AM
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I hate to ask you this..... Could you have accidently turned the "override" **** under the steering column? If so, the wipers will stay in whatever position they're presently in.
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Old Aug 30, 2006 | 08:24 AM
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Default override switch

No thats the first thing I checked but thanks anyway
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Old Aug 30, 2006 | 08:30 AM
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Originally Posted by DZRick
Al,

Would you share all the info you've got on this subjuct. I've had this problem for awhile now.

Vette wouldn't even be on the road if it weren't for a friend doing my inspections

Rick
Thanks Randy your on the ball! Rick, did you get my PM? If you need more help let me know, it's a 68 thing ask Randy, Tim, me, Gonzo,
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Old Aug 30, 2006 | 08:40 AM
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Default 1981 lights

my lights wont go up or down, I think my son pulled them up then pushed them down, now they dont work at all.
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Old Aug 30, 2006 | 08:47 AM
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Originally Posted by olblue57
my lights wont go up or down, I think my son pulled them up then pushed them down, now they dont work at all.
There are many test to go threw on this. The very first thing is the vacuum supply and leaks in the system. Did you try the over ride control under the dash? Do you have vacuum leaks under the hood? Are all the vacuum lines under the hood in good shape with no cracks or pinched lines? AL.
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