Windshield Wiper Problems ....Another Thread
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,337
Likes: 14
From: Norfolk VA
Windshield Wiper Problems ....Another Thread
Here is more windshield wiper woes thread. I have a 79 vette and my windshield wipers quit...in April. This is what I have done in an attempt to see why they quit. I did the following checks with a test light, key on engine off (koeo)
1. Checked fuse for power with test light....test light lights up.
2. Disconnected three wire connector from wiper motor checked for power with test light on center (power).....test light lights up. If not mistaken the other two wires are for high and low speed correct? I put the test light on them to see if current flows to them as well (I assume not but checked anyway), light did not light up.
3. I pulled wiper switch from dash, put test light on each terminal on both connecters to see if test light will light up. Test light did not light up, no power at any terminal.
4. I then reconnected the motor and reconnected the switch so I can wiggle the wires to the motor and switch while switch is on low speed.
Nothing happend of course. My question is since there is no power to the switch there is no way to tell if the switch itself is bad. They don't make switches anymore. Btw I put a new ww motor to see if it is the motor and that was not either??? What next?
1. Checked fuse for power with test light....test light lights up.
2. Disconnected three wire connector from wiper motor checked for power with test light on center (power).....test light lights up. If not mistaken the other two wires are for high and low speed correct? I put the test light on them to see if current flows to them as well (I assume not but checked anyway), light did not light up.
3. I pulled wiper switch from dash, put test light on each terminal on both connecters to see if test light will light up. Test light did not light up, no power at any terminal.
4. I then reconnected the motor and reconnected the switch so I can wiggle the wires to the motor and switch while switch is on low speed.
Nothing happend of course. My question is since there is no power to the switch there is no way to tell if the switch itself is bad. They don't make switches anymore. Btw I put a new ww motor to see if it is the motor and that was not either??? What next?
Last edited by Oldguard 7; Oct 9, 2010 at 11:29 PM.
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,337
Likes: 14
From: Norfolk VA
to the top. Will those who have extensive experience dealing with ww wiper problems please reply. I really could use some input as to whether I'm going about finding the problem the right way or not.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
If you apply power to the center terminal and ground the other term towards the brake booster will the motor run ?
edit-try this- leave the 3 wire connector on the motor , turn the key to on , touch probe of test light to center term and confirm 12v , now touch the probe to one of the other term and see if you get a click ,sometimes the wipers will run using the test light as a ground.
edit-try this- leave the 3 wire connector on the motor , turn the key to on , touch probe of test light to center term and confirm 12v , now touch the probe to one of the other term and see if you get a click ,sometimes the wipers will run using the test light as a ground.
Last edited by ...Roger...; Oct 12, 2010 at 10:15 PM.
Drifting
Joined: Apr 2003
Posts: 1,323
Likes: 2
From: Castle Hills Texas
This thread over here has some good info as well:
http://www.digitalcorvettes.com/foru...d.php?t=104392
http://www.digitalcorvettes.com/foru...d.php?t=104392
