It is rarely pleasing to notice a sound you don’t know about, and which comes from your car. So, what if you notice an exhaust noise that persists on your Lexus ES? It is highly possible that this is a small problem, however, before being sure, it is better to accomplish some inspections. Our team has produced this to help you resolve it. First, we will look at the possible causes if you have a muffled exhaust sound on your Lexus ES and second, if you have a metallic rattling noise on your Lexus ES.
Muffled exhaust noise Lexus ES
Exhaust pipe with holes Lexus ES
Having a muffled sound from its exhaust is not insignificant and can end in over-consumption, or a malfunction of the engine unit, which could in time become dirty, for example. If you have an exhaust noise on your Lexus ES, it is plausible that it is due to a crack in the exhaust pipe, this is the most regular cause. To be able to validate this, position somebody under the running motor vehicle and accelerate to help them locate 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 changed.
Element dislocated exhaust pipe Lexus ES
The other possibility of being the subject of a muffled exhaust noise on Lexus ES is to have a part of the exhaust unit that has dislocated as a consequence of vibrations for example. In fact some junctions of the different parts of the pot can loosen with time and induce 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 Lexus ES to establish the problem area, and tighten or change the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, think about taking a look at this content page which gives answers gives solutions about rear end noises on Lexus ES.
Metal rattling exhaust sound Lexus ES
Damaged exhaust muffler noise Lexus ES
If, on the other hand, you are exposed 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 broken. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the cause of this noise. To be certain, go under your Lexus ES, 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 Lexus ES, you will either have to find a resale one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Lexus ES : Silentblock, loose pot
Finally, a metallic exhaust noise on your Lexus ES may be connected to a poor attachment of your exhaust to your vehicle. In fact, 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 responds. Backwards there should be some play and be able to move but not too much. The closer you get to the engine motor, 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 changed.
