It is rarely pleasing to notice a sound you don’t know about, and which originates from your car. Thus, what if you spot an exhaust noise that is persistant on your Renault Scenic 4? It is highly probable that this is a minor issue, however, before being sure, it is better to carry out some investigations. Our team has written this to support you solve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Renault Scenic 4 and second, if you have a metallic rattling noise on your Renault Scenic 4.
Muffled exhaust noise Renault Scenic 4
Exhaust pipe with holes Renault Scenic 4
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 Renault Scenic 4, it is plausible that it is due to a crack in the exhaust pipe, this is the most typical explanation. In order to validate this, situate someone under the running motor car and accelerate to help them determine the source 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 Renault Scenic 4
The other possibility of being the subject of a muffled exhaust noise on Renault Scenic 4 is to have a part of the exhaust device that has dislocated due to vibrations for example. Indeed some junctions of the different parts of the pot can loosen after a while and induce an exhaust gas leak in places not intended for this goal. These fumes will then generate a loud noise. Same technique as above, we go under the Renault Scenic 4 to establish the issue place, 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 solutions gives solutions about rear end noises on Renault Scenic 4.
Metal rattling exhaust sound Renault Scenic 4
Damaged exhaust muffler noise Renault Scenic 4
If, alternatively, you are subject to an exhaust sound that is more of a metallic type, it is plausible that one or more parts of your exhaust may be weakened. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To be certain, go under your Renault Scenic 4, cold, and tap each of the previously stated parts with a hammer to establish 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 replacing it, as well as the silencer. In this case, to stop the exhaust noise on your Renault Scenic 4, you will either have to find a resale one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Renault Scenic 4 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Renault Scenic 4 may be related to a poor attachment of your exhaust to your car. Indeed, over the years, vibrations, the pot fasteners on the car chassis can come off. In this case, you need to verify, when cold, that the pot holds well, to try to get it to move in different directions and watch how it behaves. 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 verify 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.
