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9 Simple Steps to Fixing Wiper Motor/Transmission Noise

Eliminate Windshield Wiper Blade Motor/Transmission Noise

There is nothing as annoying as noisy wiper blades. Like nails on a chalkboard, the sound can drive you out of your mind as you cruise down the road. From a dirty windshield to a wiper assembly that is too tight or loose, there are many different sources of wiper noise. As awful as it sounds, listen closely and try to determine where the sound is coming from. If you hear noise coming from under the cowl of your windshield, your wiper transmission and/or motor requires attention. The following steps will help you cure the noise and give you a quiet ride.



Position the wiper
blades at the top of the windshield.


Using soap, mark the
blade position on the
windshield for future reference.


Locate and squeeze the
tabs or caps at the base
of the wiper arms; if
nuts are present, remove



Carefully lift and wiggle
the wiper arms off the


Next, locate and
remove the screws
holding the cowl in


Remove the cowl, to expose
the weather stripping,
wiper transmission,
and wiper motor.



Turn the wipers on and
listen for the noise. If it
is coming from the joints
of the transmission,
spraying with lubricant
may solve the problem.


If the noise is coming
from the motor, remove
the weather stripping,
unplug the motor
connector and replace.
Replace the motor by
removing the retainer
screws; remove the
retainer nuts to change
out the transmission.


Reconnect the weather
stripping and
reassemble the cowl
and wiper arms. Run
the wipers to ensure that
they are in the proper

Please note that wiper blade systems can vary between vehicles, this is a general how-to.

Learn more about ANCO wiper blades, find your car part, or find a local car repair shop today.

The content contained in this article is for entertainment and informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.

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