2012 Lift gate closing issues - Page 2 - EnclaveForum.net: Buick Enclave Online Community
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post #11 of 17 (permalink) Old 03-20-2019, 02:32 PM Thread Starter
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It took me two hours to replace a headlight. I got the videos uploaded to youtube and linked them.

I have looked into the area where the arm is and i cant see anything that appears out of place.

I dont know why the arm on the left side would pop after it is all the way up. When it closes its not lined up and the inner taillight on the lift gate hits the outer light. i dont know how to change this alignment
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post #12 of 17 (permalink) Old 03-20-2019, 06:52 PM
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The lights still hit each other, that is a problem there. Are you mechanically inclined or know someone who is?
One possible cause is that the strut rods are not doing their job.
Another one is that on one or more cycles, something got caught on the way down and caused it to go out of alignment.
What I would do, is open the hatch and make sure it will stay there by propping it up with something, such as a ladder.
Disconnect the rod from the automatic actuator at the hatch and at the actuator.
Carefully remove the ladder make sure the hatch doesn't drop down, and try the door using just the struts and see how it is balanced.
Does it stay up?
Is it heavy during the opening and closing movement.
Does it open and close smoothly.
Does the door still rub at the taillights?
If it doesn't work as it should you probably need to replace the struts. There are two different numbers left and right.
There isn't much of an adjustment point PER SE. If it is misaligned if it still hits the taillights in full manual, then either you could try to adjust the whole hatch but you should probably bring it to a body shop.
If you aren't comfortable doing those steps then you probably should bring it to a good body shop or mechanic. A Dealer will be OK but probably charge you more.
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post #13 of 17 (permalink) Old 03-20-2019, 08:39 PM
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what electbc says.

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post #14 of 17 (permalink) Old 05-21-2019, 02:08 PM Thread Starter
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thanks electbc. this forum kept locking me out then stopped sending notifications. I will try as you suggested and report back.

I am mechanically inclined. Not much I cant do.

Just an update. I have taken as much of the inside apart as I can and watched it go up and down. The only thing I can think (if it doesnt turn out to be the struts) is that maybe it skipped a tooth. I seem to remember years ago either me or one of the boys trying to shut it manually when it was still going up. Dont know why that sticks out in my head but I just thought bout it.

Thanks again!
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post #15 of 17 (permalink) Old 05-21-2019, 06:43 PM
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From Ricks Free Auto Repair Advice:

Power liftgate closes immediately after fully opening. Usually has a loud clunking noise at top of gate travel just before power closingó it will open fully, drop a few inches, then power close.
Possible Causes and fixes:

1 Weak strut(s) (PLG goes into a customer safe mode and power closes gate slowly). Turn off the power liftgate using the disable switch in the bottom of the center stack. Manually open the liftgate to the full open position using the exterior liftgate pull handle. Verify that the liftgate will remain at or near the full open position for several minutes. If the liftgate will not remain open, replace the liftgate strut(s) that are weak. Though both struts should be inspected for weakness, it is often only the LH strut that requires replacement. It is important to note that the LH and RH assist struts have two different part numbers and each should be installed in its proper location.

I meant to post this from Rick back in March, don't know why it didn't post. Thanks for following up on progress.
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post #16 of 17 (permalink) Old 06-08-2019, 09:42 PM
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I just had the same issue with my tailgate catching on my tail light. It was a worn out strut used to hold the gate open. I replaced both sides and the lift gate opens and closes normally now.
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post #17 of 17 (permalink) Old 06-09-2019, 11:06 AM
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Quote:
Originally Posted by Calab View Post
I just had the same issue with my tailgate catching on my tail light. It was a worn out strut used to hold the gate open. I replaced both sides and the lift gate opens and closes normally now.

HIS: 2008 Enclave CXL AWD Red Jewel/Titanium Leather, Premium package 19" Chrome 7-spoke, AM/FM/CD/DVD/NAV 10 speaker Bose, LED upgrades inside and out, 156K Miles

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