It is never pleasant to discover a sound you don’t know about, and which originates from your car. So, what if you notice an exhaust noise that persists on your Renault Scenic? It is highly probable that this is a small trouble, however, before being sure, it is better to conduct some checks. Our team has produced this to support you fix it. First, we will look at the possible causes if you have a muffled exhaust sound on your Renault Scenic and second, if you have a metallic rattling noise on your Renault Scenic.
Muffled exhaust noise Renault Scenic
Exhaust pipe with holes Renault Scenic
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the engine unit, which could finally become dirty, for example. If you have an exhaust noise on your Renault Scenic, it is plausible that it is due to a crack in the exhaust pipe, this is the most usual explanation. In order to confirm this, locate somebody under the running motor car and accelerate to help them locate the starting point 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 swapped.
Element dislocated exhaust pipe Renault Scenic
The other possibility of being suffering from a muffled exhaust noise on Renault Scenic is to have a part of the exhaust device that has dislocated caused by vibrations for example. Indeed some junctions of the different parts of the pot can loosen after some time and cause an exhaust gas leak in places not intended for this goal. These fumes will then create a loud noise. Same technique as above, we go under the Renault Scenic to discover the trouble area, and tighten or swap the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, think about having a look at this article which gives answers gives solutions about rear end noises on Renault Scenic.
Metal rattling exhaust sound Renault Scenic
Damaged exhaust muffler noise Renault Scenic
If, on the other hand, you are subject to an exhaust sound that is more of a metallic type of, it is plausible that one or more parts of your exhaust may be destroyed. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To be sure, go under your Renault Scenic, 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 dead catalyst, it will be necessary to consider changing it, as well as the silencer. In this case, to stop the exhaust noise on your Renault Scenic, you will either have to find a used one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Renault Scenic : Silentblock, loose pot
Finally, a metallic exhaust noise on your Renault Scenic may be connected 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 examine, 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 examine 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 swapped.
