It is rarely pleasing to perceive a sound you don’t know about, and which comes from your car. So, what if you discover an exhaust noise that persists on your Peugeot 406? It is highly possible that this is a small problem, however, before being sure, it is better to operate some inspections. Our team has produced this to support you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Peugeot 406 and second, if you have a metallic rattling noise on your Peugeot 406.
Muffled exhaust noise Peugeot 406
Exhaust pipe with holes Peugeot 406
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 finally become dirty, for example. If you have an exhaust noise on your Peugeot 406, it is possible that it is due to a crack in the exhaust pipe, this is the most classic cause. In order to verify this, locate a friend or relative under the running motor vehicle and accelerate to help them locate the origin of the hole. Once identified, 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 Peugeot 406
The other possibility of being confronted with a muffled exhaust noise on Peugeot 406 is to have a part of the exhaust device that has dislocated because of vibrations for example. Indeed some junctions of the different parts of the pot can loosen after some time and induce an exhaust gas leak in places not intended for this purpose. These fumes will then generate a loud noise. Same technique as above, we go under the Peugeot 406 to discover the problem region, and tighten or change the bolts. If you hear a muffled sound but after checking it doesn’t seem to come from the pot itself, consider taking a look at this content which gives answers gives solutions about rear end noises on Peugeot 406.
Metal rattling exhaust sound Peugeot 406
Damaged exhaust muffler noise Peugeot 406
If, alternatively, you are exposed to an exhaust sound that is more of a metallic type of, it is possible that one or more parts of your exhaust may be broken. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the induce of this noise. To be certain, go under your Peugeot 406, cold, and tap each of the previously stated parts with a hammer to discover 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 out of date catalyst, it will be necessary to consider replacing it, as well as the silencer. In this case, to stop the exhaust noise on your Peugeot 406, you will either have to find a used one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Peugeot 406 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Peugeot 406 may be related to a poor attachment of your exhaust to your vehicle. Indeed, over the years, vibrations, the pot fasteners on the vehicle 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, 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.
