If you find a noise on your vehicle, you are right to be aware of it and take it seriously, although it is possible that nothing critical will occur, it is also possible that it is the sign of a more important repair. A noise that appears in the trunk of your Chevrolet Cobalt is luckily more a signal of a small correction or fix, rather than a complicated one. To support you in your research, we have decided to write this article to present you with the most likely solutions to your issue. First we will see that this trunk noise on your Chevrolet Cobalt can come from built up dirt, the issue 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 Chevrolet Cobalt : Built up dirt that causes poor closing
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We will therefore begin with a trunk noise on your Chevrolet Cobalt generated by dirt accumulated on your joints, lock for example. Indeed, it is possible that on a vehicle that is already a few years old and whose cleaning is not always a top priority or that the roads used are not very clean that dirt accumulates at the trunk gasket. This issue causes a poor closure of the trunk and a noise that can sound like a crack. To check if you are in this scenario, open the trunk of your Chevrolet Cobalt, examine the condition of the gasket that runs 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 impact. If this is not the case, continue to the other hypotheses that will probably give a solution. It is possible however that you have a trunk noise on your Chevrolet Cobalt that is relating to other origins such as shock absorbers, do not hesitate to read this article on the noises at the back of a Chevrolet Cobalt.
Noise in the trunk of my Chevrolet Cobalt : Loose lock, clicking noise
Second possibility, you may also, over time, knowledge a locking system that became loose. And this is one of the most potential alternatives. Indeed, knowing a trunk noise on your Chevrolet Cobalt is very often relating to this issue. Some solutions are existing to you according to the level of play you have with your lock. The first is that quite often the offset is minimal and a simple greasing of the system with thick grease is enough to solve the problem. Secondly, it is also possible that you really have a lot of play on your lock and that each time the trunk “jumps”, in which case 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, just push it back a little towards the inside of the trunk and tighten it again. Remember to check the centering of the striker in relation to the trunk lock. If after examining the trunk of your Chevrolet Cobalt closes badly, it means that you have moved it too far, repeat the procedure by pushing the striker less.
Noise in my trunk Chevrolet Cobalt : Rivet following plate change in the trunk/ bumper
Finally, one of the last possibilities. It is that following a license plate change you were unlucky and that a piece of rivet fell backside your plate. Indeed, when a plate swap is made, to take out the old one the process used is to drill the existing rivets in order to put out 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 cause an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your Chevrolet Cobalt linked to a rivet, you will need to check that it is in the tailgate open it and stir it to distinguish 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 unpleasant situation, you will have to take out the bumper to remove the bits of rivet that are running around.
