If you pay attention to a noise on your vehicle, you are right to be careful of it and take it seriously, although it is plausible that nothing major will happen, it is also plausible that it is the sign of a more critical restoration. A noise that comes out in the trunk of your Kia Optima is luckily more a sign of a small adjustment or fix, rather than a complex one. To help you in your research, we have chosen to produce this content page to present you with the most likely solutions to your problem. First we will see that this trunk noise on your Kia Optima can come from accumulated dirt, the problem can also come from a loose lock and finally, it can even come from a simple rivet that sits inside your bumper.
Noise in the trunk Kia Optima : Accumulated dirt that triggers poor closing
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We will therefore begin with a trunk noise on your Kia Optima triggered by dirt accumulated on your joints, lock for example. In fact, it is plausible that on a vehicle that is already a few years old and whose cleaning is not always a main concern or that the roads used are not very clean that dirt collects at the trunk gasket. This problem triggers a poor closure of the trunk and a noise that can sound like a crack. To check if you are in this condition, open the trunk of your Kia Optima, verify the condition of the gasket that goes around the entire tailgate and clean it with a wet/soap cloth, dry the whole thing and try to close the trunk and take a dentred road to see the difference. If this is not the case, continue to the other hypotheses that will probably give a solution. It is plausible however that you have a trunk noise on your Kia Optima that is linked to other origins such as shock absorbers, do not hesitate to consult this content page on the noises at the back of a Kia Optima.
Noise in the trunk of my Kia Optima : Loose lock, clicking noise
Second possibility, you may also, over time, encounter a locking system that became loose. And this is one of the most likely alternatives. In fact, knowing a trunk noise on your Kia Optima is very frequently linked to this problem. Several solutions are existing to you according to the level of play you have with your lock. The first is that oftentimes the offset is minimal and a simple greasing of the system with thick grease is enough to fix the trouble. Secondly, it is also plausible that you really have a lot of play on your lock and that each time the trunk “jumps”, in which circumstance you would have to remove the cover that allows access to the lock (inside the trunk). Then, using torx screws, you unscrew the striker attached to the threshold, simply push it back a little towards the inside of the trunk and tighten it again. Make sure to check the centering of the striker in connection with the trunk lock. If after checking the trunk of your Kia Optima closes badly, it means that you have moved it too far, replicate the process by pushing the striker less.
Noise in my trunk Kia Optima : Rivet following plate swap in the trunk/ bumper
Finally, one of the last possibilities. It is that following a license plate swap you were unlucky and that a piece of rivet fell backside your plate. In fact, when a plate change is made, to take off the old one the process used is to drill the existing rivets in order to released the license plate. Sadly, it can happen that part of the rivet falls into the hole of the bumper and it will therefore wander inside the bumper and can create an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your Kia Optima linked to a rivet, you will need to check that it is in the tailgate open it and stir it to discern the noise. If this is your situation, you will have to take out the linings from the trunk to remove it. Finally, if it is your bumper, it is in this rarer and more disturbing situation, you will have to take off the bumper to remove the bits of rivet that are running around.
