It is rarely pleasing to perceive a sound you don’t know about, and which comes from your car. Thus, what if you discover an exhaust noise that continues on your Nissan Sentra? It is highly possible that this is a small issue, however, before being sure, it is better to conduct some inspections. Our team has written this to support you fix it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Nissan Sentra and second, if you have a metallic rattling noise on your Nissan Sentra.
Muffled exhaust noise Nissan Sentra
Exhaust pipe with holes Nissan Sentra
Having a muffled sound from its exhaust is not insignificant and can end up in over-consumption, or a malfunction of the car engine, which could eventually become dirty, for example. If you have an exhaust noise on your Nissan Sentra, it is plausible that it is due to a crack in the exhaust pipe, this is the most usual reason. In order to validate this, situate a friend or relative under the running motor car and accelerate to help them recognize the origin of the hole. Once located, if it is not too large you can cold seal it with specific metallic mastic type legs. Otherwise, the section will have to be replaced.
Element dislocated exhaust pipe Nissan Sentra
The other possibility of being the subject of a muffled exhaust noise on Nissan Sentra is to have a part of the exhaust unit that has dislocated because of vibrations for example. In fact some junctions of the different parts of the pot can loosen with time and cause an exhaust gas leak in places not intended for this purpose. These fumes will then make a loud noise. Same technique as above, we go under the Nissan Sentra to identify the issue location, and tighten or replace the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, think about looking at this content page which gives solutions gives solutions about rear end noises on Nissan Sentra.
Metal rattling exhaust sound Nissan Sentra
Damaged exhaust muffler noise Nissan Sentra
If, alternatively, you are subject to an exhaust sound that is more of a metallic sort of, it is plausible that one or more parts of your exhaust may be injured. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the reason of this noise. To be certain, go under your Nissan Sentra, cold, and tap each of the previously stated parts with a hammer to identify the source of the noise. You should move things between things in the problematic part, if they are baffles, you can try to push the section a little bit to try to block them and thus limit their movements. If it is a dead catalyst, it will be necessary to consider swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Nissan Sentra, you will either have to find a used one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Nissan Sentra : Silentblock, loose pot
Finally, a metallic exhaust noise on your Nissan Sentra may be related to a poor attachment of your exhaust to your car. In fact, after some time, vibrations, the pot fasteners on the car chassis can come off. In this case, you need to check, when cold, that the pot holds well, to try to get it to move in different directions and watch how it reacts. Backwards there should be some play and be able to move but not too much. The closer you get to the engine unit, the more fixed it should be. Visually check the fasteners for which you have doubts. Finally, it is possible that a silentbloc may have died . In this case it will have to be replaced.
