If you detect a noise on your car, you are right to feel concerned about it and take it seriously, although it is possible that nothing major will result from it, it is also imaginable that it is the first indication of a more significant repair. A noise that appears on a door of your GMC Sierra fortunately signifies a slight adjustment / repair, instead of a complicated repair. In order to support you in your approach, we have chosen to compose this article to provide you the most likely possibilities to your problem. First of all, we will check out the different source noises of air in the door of your GMC Sierra, then hinge noises and finally at other possible possibilities.door-noise-gmc-sierra

Door air noise GMC Sierra

Plastic air cache noise

If you encounter air noise on the doors of your GMC Sierra, it is plausible that it is linked to some plastic covers on the inside walls of your door. These can come loose, hole, fall and thus produce an air intake that will obviously make a serious and disagreeable air noise in the passenger compartment. To ensure that you don’t have this issue on your GMC Sierra, open your doors and check the sides of them carefully, see if all the covers are properly placed.

Air noise seal

Air noise at the doors of your GMC Sierra can also be related to a gasketfailing or overused. Indeed, the door seal, in addition to have a defensive function against moisture infiltration, also has a protective function for air inlets in the passenger compartment. When it is worn, it will not settle and therefore no longer create a perfect seal between the door and the car body. To check its condition, there are two options, first, visually check the state of the seal and for the second test, install someone inside the passenger compartment and door by door, car closed, sprayed with water the seals to see if water goes in. If you are in this case, go to your auto technician to have your seal replaced and the door noise on your GMC Sierra adjusted.

Hinge noise door hinge GMC Sierra

Door noise GMC Sierra, dry hinge

It is also possible, based on the kind of of sound you know, that your hinge is at the origin of them. If this is the case, you will have to check it by opening your door and checking that the door noise on your GMC Sierra comes from a hinge that is too dry. To solve this problem, first try to grease the hinge, in most cases this is sufficient to resolve your issue.

Noise porte GMC Sierra, worn hinge

If you have followed our first advice relating to your hinge, but the issue still lasts, it is plausible that your hinge is worn out and requires a change. In this case, check that despite the lubrication it still makes a lot of noise when opening and closing. You should feel a “clack” and restraint in the movement. If this GMC Sierra noise is your problem, change your hinge.

Other possibilities

Internal part of the broken window regulator

In the other possibilities that can generate door noise on GMC Sierra, we can first think of the window lift, in fact, after the hinge, it is the second advanced mechanism of the door. If broken, it can create vibration or even air noise. To check its condition, remove the door trim and check that no parts are broken.

unscrewed speaker

Finally, one of the last plausible scenarios for GMC Sierra door noise would come from a from your vehicle’s audio speakers. In fact, they take place in the door and can, over time, loosen and generate a significant vibration and risk damaging themselves if you do not fix them again. Same process, you will have to dismantle the door trim to check its correct positioning.
If you can’t find solutions among this document, don’t hesitate to take your car to your auto technician who can test your car in more detail to discover what the particular issue is that you know.