It is never pleasing to find out a sound you don’t know about, and which comes from your car. Thus, what if you detect an exhaust noise that continues on your Lexus RX? It is highly possible that this is a minor issue, however, before being sure, it is better to execute some investigations. Our team has produced this to help you solve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Lexus RX and second, if you have a metallic rattling noise on your Lexus RX.
Muffled exhaust noise Lexus RX
Exhaust pipe with holes Lexus RX
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the engine unit, which could eventually become dirty, for example. If you have an exhaust noise on your Lexus RX, it is plausible that it is due to a crack in the exhaust pipe, this is the most common cause. To be able to verify this, position someone under the running motor car and accelerate to help them identify the origin 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 changed.
Element dislocated exhaust pipe Lexus RX
The other possibility of being the subject of a muffled exhaust noise on Lexus RX 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 over time and generate 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 RX to establish the issue place, 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, think about taking a look at this content page which gives answers gives solutions about rear end noises on Lexus RX.
Metal rattling exhaust sound Lexus RX
Damaged exhaust muffler noise Lexus RX
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 weakened. Indeed, it is possible that either your baffles, the catalyst or the silencer are the reason of this noise. To make sure, go under your Lexus RX, 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 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 Lexus RX, you will either have to find a resale one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Lexus RX : Silentblock, loose pot
Finally, a metallic exhaust noise on your Lexus RX may be in connection with a poor attachment of your exhaust to your car. Indeed, as time passes, vibrations, the pot fasteners on the car 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 behaves. 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 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 changed.
