Faulty windshield wipers

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May 10, 2026 | 11:57 PM

2blklt4

Thread Starter

Burning Brakes

Joined: Jul 2004

Posts: 768

Likes: 6

From: Newport Beach, Southern California

Faulty windshield wipers

Hi, all of a sudden when turned on, only driver's side moves, the other looks like barely moves an inch....
What can it be? Motor going bad?
Thanks!

May 11, 2026 | 12:23 AM

Ltngdrvr

Drifting

Joined: Sep 2022

Posts: 1,340

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If one side works but not the other, then I would imagine some linkage between the two sides is faulty.

May 11, 2026 | 07:49 AM

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,353

Likes: 1,125

From: Dyer, IN

Quote:

Originally Posted by 2blklt4

Hi, all of a sudden when turned on, only driver's side moves, the other looks like barely moves an inch....
What can it be? Motor going bad?
Thanks!

Will you be doing the troubleshooting and repairs?

May 11, 2026 | 12:58 PM

2blklt4

Thread Starter

Burning Brakes

Joined: Jul 2004

Posts: 768

Likes: 6

From: Newport Beach, Southern California

No, I was looking to find out if anyone here has had this issue and then know what to expect

May 11, 2026 | 01:45 PM

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,353

Likes: 1,125

From: Dyer, IN

Quote:

Originally Posted by 2blklt4

No, I was looking to find out if anyone here has had this issue and then know what to expect

I expect your shop is going to tell you the passenger side wiper arm is loose.

Yesterday | 08:06 AM

Gorn Captain

Advanced

Joined: Jun 2025

Posts: 82

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Quote:

Originally Posted by lucky131969

I expect your shop is going to tell you the passenger side wiper arm is loose.

I agree. The motor drives a long stem that first crosses to the passenger side pivot, which has another arm attached there that reaches back to the driver side. So if it’s only the driver side, by elimination either the passenger wiper arm is loose, or the pivot plate is loose on the bottom of passenger shaft.

pop the cap off the passenger wiper and check if the nut is loose and the wiper is off the splines.

Yesterday | 08:52 PM

2blklt4

Thread Starter

Burning Brakes

Joined: Jul 2004

Posts: 768

Likes: 6

From: Newport Beach, Southern California

Quote:

Originally Posted by lucky131969

I expect your shop is going to tell you the passenger side wiper arm is loose.

it did and yes it was loose.

Here is what happened:

A yr aGo I bought silicone blades which are heavier drag across when windshield wet. That extra load made nut loose. I installed GM regular rubber blades.

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