It is rarely pleasant to notice a sound you don’t know about, and which originates from your car. So, what if you identify an exhaust noise that is persistant on your Toyota Avensis? It is highly possible that this is a small problem, however, before being sure, it is better to operate some checks. 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 Toyota Avensis and second, if you have a metallic rattling noise on your Toyota Avensis.
Muffled exhaust noise Toyota Avensis
Exhaust pipe with holes Toyota Avensis
Having a muffled sound from its exhaust is not insignificant and can end up in over-consumption, or a malfunction of the engine, which could after a while become dirty, for example. If you have an exhaust noise on your Toyota Avensis, it is plausible that it is due to a crack in the exhaust pipe, this is the most common explanation. To be able to confirm this, situate a friend or relative under the running motor vehicle and accelerate to help them discover the starting point of the hole. Once discovered, 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 Toyota Avensis
The other possibility of being suffering from a muffled exhaust noise on Toyota Avensis is to have a part of the exhaust device that has dislocated due to vibrations for example. In fact some junctions of the different parts of the pot can loosen after a while and cause 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 Toyota Avensis to identify the problem region, 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 content which gives answers gives solutions about rear end noises on Toyota Avensis.
Metal rattling exhaust sound Toyota Avensis
Damaged exhaust muffler noise Toyota Avensis
If, on the other hand, you are exposed 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 destroyed. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the reason of this noise. To be sure, go under your Toyota Avensis, 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 out of date catalyst, it will be necessary to consider swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Toyota Avensis, you will either have to find a used one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Toyota Avensis : Silentblock, loose pot
Finally, a metallic exhaust noise on your Toyota Avensis may be related to a poor attachment of your exhaust to your vehicle. In fact, 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 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 swapped.
