Random wiper operation
Melting Slicks
Joined: Nov 2006
Posts: 3,394
Likes: 1,812
From: Apple Valley, MN
You may be barking up the wrong tree?
I dug this up a while back. From what you are describing, you have a leak in the vacuum control hose to the vacuum relay or a leaky relay diaphragm.
I dug this up a while back. From what you are describing, you have a leak in the vacuum control hose to the vacuum relay or a leaky relay diaphragm.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,174
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From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
His wipers are off and turn themselves on, not just a door openning.
Now that we know your headlights are flickering check the grounds for the main wirinbg harness in the cabin. THe Headlights switch has to be grounded in a few spots as well as the wiper switch and relay. THe relay maybe grounded through the harness which grounds to the birdcage near the drivers side footwell above the hood release on my car...yours maybe similar
Now that we know your headlights are flickering check the grounds for the main wirinbg harness in the cabin. THe Headlights switch has to be grounded in a few spots as well as the wiper switch and relay. THe relay maybe grounded through the harness which grounds to the birdcage near the drivers side footwell above the hood release on my car...yours maybe similar
Thread Starter
Heel & Toe
Joined: Feb 2024
Posts: 17
Likes: 5
From: Tucson
I put the old headlight switch on and the flickering stopped so I took apart the air side of the switch and the seal was dry. I put some o-ring lube on the seal and it vacuum tested good. I should have done that before order the junk replacement. I will check ground connections next for the wiper system. Haven’t been able to test drive the car yet.
Le Mans Master
Joined: May 2003
Posts: 8,876
Likes: 3,555
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
His wipers are off and turn themselves on, not just a door openning.
Now that we know your headlights are flickering check the grounds for the main wirinbg harness in the cabin. THe Headlights switch has to be grounded in a few spots as well as the wiper switch and relay. THe relay maybe grounded through the harness which grounds to the birdcage near the drivers side footwell above the hood release on my car...yours maybe similar
Now that we know your headlights are flickering check the grounds for the main wirinbg harness in the cabin. THe Headlights switch has to be grounded in a few spots as well as the wiper switch and relay. THe relay maybe grounded through the harness which grounds to the birdcage near the drivers side footwell above the hood release on my car...yours maybe similar
A loose ground on the headlights usually causes funky issues- not turning off the headlights off and on.
The headlights will "see" a ground through the other bulbs- lights will be dim- the turnsignal indicator will light in the dash etc-
Electricity not only takes the path of least resistance - but all paths
Looks like OP has found the problem- repo switch-.
GM's cost effective way to ground the whole front electrical system-
