# Windshield Wipers

**URL:** <https://community.cartalk.com/t/windshield-wipers/67659>\
**Category:** Maintenance/Repairs\
**Created:** [September 5, 2011, 1:26pm UTC](https://community.cartalk.com/t/windshield-wipers/67659 "2011-09-05T13:26:39Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![rmlhdrider06](https://avatars.discourse-cdn.com/v4/letter/r/a88e57/32.png) [@rmlhdrider06](https://community.cartalk.com/u/rmlhdrider06)\
**Post date:** [September 5, 2011, 1:26pm UTC](https://community.cartalk.com/t/windshield-wipers/67659/1 "2011-09-05T13:26:39Z")

</div>

I have a '97 Chevy Silverado 2500. I hae 142K miles on it. The problem I have is that the windshield wipers sometimes work and sometimes they don’t. Mostly they don’t work when it begins to rain and when I turn them on I can hear a humming noise but they do not move. I have checked the splines on the wipers and they are ok. Someone told me that is a sensor that has gone bad. Is this true?

---

<div class="post-metadata">

**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [September 5, 2011, 1:46pm UTC](https://community.cartalk.com/t/windshield-wipers/67659/2 "2011-09-05T13:46:35Z")

</div>

The wiper motor pulse board module on these models are prone to failure due to bad solder joints. I would have that checked first of all. The wiper motor could be faulty but the wiper motor pulse board module is the most likely culprit.