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DIY Hatch Rattle Repair

Discussion in 'Kia Stinger How To's and Do It Yourself' started by jimdr, Jan 13, 2018.

  1. jimdr

    jimdr United States Member

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    Dissatisfied with the prospect of listening to hatch rattle until the rumored April delivery of factory repair kits? A successful DIY fix was undertaken.

    First, some strips of 2 mm thick black rubber foam sheet (see picture below) was taped to the top of the lower hatch bumpers. This cured the rattle and confirmed that some sort of bumper modification could work.

    The upper hatch frame bumpers were removed using a TorX 4 screwdriver. This took a lot of force, probably because blue thread lock had been used in assembly.

    Inspection of the bumper revealed there was a thin (about 1.5 mm) rubber gasket that did not extend to the edge of the bumper. There were two washers between the bumper and hatch frame for each screw.

    A new rubber pad was made with the 2 mm rubber sheet that extended to the edge of the bumper.
    The bumper was installed using both the original pad, original washers washers and new pad. The washers were on the bumper side of the new pad. The screws were tightened moderately tight (don't have a torque wrench). With the new pad, the hatch lid popped up slightly when opened.

    A test drive in 15 degree weather revealed vast improvement in the rattle! It may have been heard once or twice over a route that previously had 30 rattles. The sheet rubber used was old - I don't know where to buy it.

    it seems like dealer service for this would be hastened if they just cut new pads from rubber sheet instead of waiting for the kit.

    Jim

    pad.jpg
     

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  2. Kia Stinger

    Kia Stinger United States Administrator Staff Member

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    Thank you for posting this up, @jimdr! I'm glad to hear this has made such a substantial improvement...
     
  3. jimdr

    jimdr United States Member

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    After the above, some rattle persisted. A second spacer, this one about 1.5 mm think and made of silicone, was made and installed. So there is the original factory gasket, a DIY spacer 1.5 mm thick of black foam rubber and a second DIY spacer 1.5 mm thick of silicone between the hatch frame and the black bumper. I have not heard the rattle since.
     
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  4. Taimaishoo

    Taimaishoo United States Active Member

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    Yeah, my dealership ended putting a few washers on mine to stop the rattle.
     
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  5. SEA Stinger

    SEA Stinger United States Active Member Sustaining Member

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    @jimdr, thank you for posting the DIY instructions!

    I don't have Torx tools, so have to buy one. What size is needed?

    Eyeballing pics of online products and the fastener on my hatch bumper, it looks like the size might be T40. But I'd rather not guess if you can post the correct size.

    Thanks in advance!
     
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  6. SEA Stinger

    SEA Stinger United States Active Member Sustaining Member

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    Okay, I finally got around to finding a Torx bit to use on my hatch bumpers. As suspected, the proper size is T40.
     
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  7. Archibald

    Archibald Canada Newish Member

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    My Dealership told me there is a TSB for this. They're just waiting for the parts to come in.
     
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  8. SEA Stinger

    SEA Stinger United States Active Member Sustaining Member

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    Finally got rid of the annoying hatch rattle! :p

    Detached the hard plastic bumper on the hatch "door" and inserted 1/8" styrene butadiene rubber (SBR) shims between each bumper and the hatch. I fabricated the shims using SBR with indentation hardness of Shore 60 A, which has a good balance of pliability and compression resistance. Here it is on amazon:
    https://www.amazon.com/Styrene-Butadiene-Rubber-Backing-Thickness/dp/B00L8NJW7U/ref=sr_1_1?ie=UTF8&qid=1520819718&sr=8-1&keywords=1/8"+sbr+styrene+60+shore+roll

    I used an X-ACTO knife with a sharp new blade to cut the SBR shims to the same shape as the base of the bumpers.

    The threaded countersunk bolts that attach the bumpers to the hatch are locked in pretty tight, so I used a cordless electric drill to remove and reinstall the bumpers. The bolts require use of a T40 Torx bit.

    Haven't heard the rattle in two days of driving, including a couple of brisk runs on some twisty, bumpy roads that previously made the hatch rattle every few seconds. Also, the hatch now closes with a more solid-sounding "thunk" than it did before.

    My Stinger is much more pleasant to drive without constantly hearing the tiresome hatch rattle! :D

    Also creates a far better impression when I take friends and family for rides in the new car I've been raving to them about. :rolleyes:

    I figure this fix will work at least until KIA comes up with a more effective remedy than the one(s) they have offered so far. :oops:
     
    Last edited: Mar 11, 2018
  9. westcoastGT

    westcoastGT 2500 Posts Club!

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    Great !! Can you post some pics of them installed ?
    Thx !
     
  10. SEA Stinger

    SEA Stinger United States Active Member Sustaining Member

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    @westcoastGT, here you go:
    Bumper.jpg
     
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  11. westcoastGT

    westcoastGT 2500 Posts Club!

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  12. Andres

    Andres United States Member

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    can someone post instructions or a video? very helpful
     
  13. Johnnyfive

    Johnnyfive United States Active Member

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    Did you torque them down to a specific tightness,or just until they seemed secure? Been to the dealer twice now, and the rattle persists.
     
  14. SEA Stinger

    SEA Stinger United States Active Member Sustaining Member

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    The Shore 60 A SBR is pliable but resists compression. So you can torque the bolts fairly tightly. I set mine just a bit less tight than the factory did.
     
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  15. StingerGT68

    StingerGT68 Stinger Enthusiast

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    Yeah, I went to the dealer for the fix, too, and the rattle is still there. I may call them again.
     
  16. Tonkabob

    Tonkabob United States Active Member

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    I just turned out the two rubber stoppers to spec, an inch, per the TSB and it took care of 98% of the trunk rattle. I then got the replacement part. With the new part the trunk pops loudly when released. Much more pressure on the trunk latch.
     
  17. Stinger4Banger

    Stinger4Banger United States Newish Member

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    Have you noticed any issue when closing the hatch with the replacement part? I've had mine not seat properly with the latch like once or twice now with just regular pressure when closing it, leading to the trunk release not working until I put my weight on the hatch :(
     
  18. English D

    English D United States Active Member

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    the kit shouldn't change that look at your stops near the latch maybe screw them in a bit
     
  19. Tonkabob

    Tonkabob United States Active Member

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    Mine has been fine but I also have the electric hatch so don't ever push I down manually.
     
  20. Stinger4Banger

    Stinger4Banger United States Newish Member

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    That did it, they had unscrewed themselves almost halfway. Wonder if adding Teflon tape would keep them in place
     
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