windshield wiper will continue to run after being turned off?

1998 CHEVROLET SILVERADO

84,100 MILES • V8 • 4WD • AUTOMATIC

DPARK20KU

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My wipers are acting up. When turned for "mist"(engage once), they will occassionally engage several times. Also, they will continue to run after being turned off. And it will not squirt fluid. Resevoir is full and wipers run, just no fluid. Any suggestions?

Jan 1, 2011 at 5:35 AM

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SQM

AUTOMOTIVE REPAIR CONTRIBUTOR
6,383 POSTS

Hello,

It sounds like you might have a faulty switch.
There are probably worn connectors inside and when you try the mist is stays connected even when you release the switch.
When try to engage the washer fluid, can you hear the pump come on? If you do not hear the pump then you will have either a faulty pump or the switch could be bad.

Replacing the wiper switch does require removing the steering wheel.

Here is a helpful video:

https://youtu.be/Bkt9tfgJFdI

Check to see if you are getting power to the washer pump. If there is power but not operational then it can be either the pump of the switch.

https://www.2carpros.com/articles/how-to-check-wiring

I have attached diagrams for your reference.

Please let me know of any questions.

Thank you.

Images (Click to enlarge)

Aug 18, 2021 at 7:47 PM