It is never pleasing to hear a sound you don’t know about, and which comes from your car. Thus, what if you detect an exhaust noise that is persistant on your Toyota Highlander? It is highly probable that this is a small problem, however, before being sure, it is better to conduct some verifications. Our team has produced this to support you fix it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Toyota Highlander and second, if you have a metallic rattling noise on your Toyota Highlander.
Muffled exhaust noise Toyota Highlander
Exhaust pipe with holes Toyota Highlander
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 in time become dirty, for example. If you have an exhaust noise on your Toyota Highlander, it is possible that it is due to a crack in the exhaust pipe, this is the most usual reason. To be able to verify this, situate somebody under the running motor vehicle and accelerate to help them discover the origin of the hole. Once located, 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 Highlander
The other possibility of being suffering from a muffled exhaust noise on Toyota Highlander is to have a part of the exhaust unit that has dislocated caused by vibrations for example. Indeed some junctions of the different parts of the pot can loosen with time and cause 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 Toyota Highlander to determine 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 having a look at this content page which gives answers gives solutions about rear end noises on Toyota Highlander.
Metal rattling exhaust sound Toyota Highlander
Damaged exhaust muffler noise Toyota Highlander
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 destroyed. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the reason of this noise. To be certain, go under your Toyota Highlander, cold, and tap each of the previously stated parts with a hammer to determine the origin 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 Toyota Highlander, you will either have to find a resale one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Toyota Highlander : Silentblock, loose pot
Finally, a metallic exhaust noise on your Toyota Highlander may be connected to a poor attachment of your exhaust to your vehicle. Indeed, as time passes, vibrations, the pot fasteners on the vehicle 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 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 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 swapped.
