It is rarely pleasant to find out a sound you don’t know about, and which will arrive from your car. Thus, what if you find an exhaust noise that is persistant on your Renault Laguna? It is highly possible that this is a small trouble, however, before being sure, it is better to execute some verifications. Our team has created this to help you fix it. First, we will look at the possible causes if you have a muffled exhaust sound on your Renault Laguna and second, if you have a metallic rattling noise on your Renault Laguna.
Muffled exhaust noise Renault Laguna
Exhaust pipe with holes Renault Laguna
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the car engine, which could eventually become dirty, for example. If you have an exhaust noise on your Renault Laguna, it is plausible that it is due to a crack in the exhaust pipe, this is the most typical reason. In order to validate this, situate a friend or relative under the running motor automobile and accelerate to help them identify the starting point of the hole. Once found, 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 Laguna
The other possibility of being subjected to a muffled exhaust noise on Renault Laguna 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 generate an exhaust gas leak in places not intended for this purpose. These fumes will then create a loud noise. Same technique as above, we go under the Renault Laguna to discern the trouble place, and tighten or swap the bolts. If you hear a muffled sound but after verifying it doesn’t seem to come from the pot itself, think about having a look at this document which gives solutions gives solutions about rear end noises on Renault Laguna.
Metal rattling exhaust sound Renault Laguna
Damaged exhaust muffler noise Renault Laguna
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 damaged. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the cause of this noise. To make sure, go under your Renault Laguna, cold, and tap each of the previously stated parts with a hammer to discern 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 Laguna, you will either have to find a resale one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Renault Laguna : Silentblock, loose pot
Finally, a metallic exhaust noise on your Renault Laguna may be connected to a poor attachment of your exhaust to your automobile. In fact, over the years, vibrations, the pot fasteners on the automobile 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 unit, 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.
