Driver side headlight closes and opens back up
Thread Starter
Cruising
Joined: Sep 2018
Posts: 12
Likes: 0
From: Oklahoma City
Driver side headlight closes and opens back up
I have replaced both of the sprockets in my headlight motors over the past couple of years. Last night when I came home and turned the headlights off, the driver side opened back up after going down. It doesn't stay lit but it does stay open. I manually lowered it and then turned them on/off again. They both closed simultaneously but then the driver side opens back up. Anyone had this occur and how do you fix it? Crazy thing is this car is about 100 miles short of 20k so you would think the parts would work like a low 20k mile car. Nope...not with the cheap GM parts. LOL
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
In addition to that, there is a TSB addressing those symptoms that calls for shimming the driver's side motor (No. 2 in diagram):
Thread Starter
Cruising
Joined: Sep 2018
Posts: 12
Likes: 0
From: Oklahoma City
Thank you so much! That's exactly what it was. I was able to pull the top bump stop off and turn it around. It was partly crushed on the top side so this will be temporary fix. I ordered new ones from the link you provided. Thanks again, Shannon
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Glad I could be of service! 
I suggest you consider shimming the driver's side motor, as per the TSB I linked. Doing that, your new rubber bump stops will last longer.
I suggest you consider shimming the driver's side motor, as per the TSB I linked. Doing that, your new rubber bump stops will last longer.
Last edited by GCG; Aug 23, 2020 at 09:16 PM.
