It is never pleasant to listen to a sound you don’t know about, and which results from your car. Thus, what if you detect an exhaust noise that is persistant on your Lexus GX? It is highly possible that this is a minor trouble, however, before being sure, it is better to conduct some verifications. Our team has produced this to help you fix it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Lexus GX and second, if you have a metallic rattling noise on your Lexus GX.
Muffled exhaust noise Lexus GX
Exhaust pipe with holes Lexus GX
Having a muffled sound from its exhaust is not insignificant and can end up 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 GX, it is plausible that it is due to a crack in the exhaust pipe, this is the most common cause. To be able to validate this, locate a friend or relative under the running motor vehicle and accelerate to help them determine the starting point of the hole. Once determined, if it is not too large you can cold seal it with specific metallic mastic type legs. Otherwise, the section will have to be replaced.
Element dislocated exhaust pipe Lexus GX
The other possibility of being confronted with a muffled exhaust noise on Lexus GX is to have a part of the exhaust system that has dislocated due to vibrations for example. Indeed some junctions of the different parts of the pot can loosen after some time and induce an exhaust gas leak in places not intended for this goal. These fumes will then produce a loud noise. Same technique as above, we go under the Lexus GX to establish the trouble place, and tighten or change the bolts. If you hear a muffled sound but after verifying it doesn’t seem to come from the pot itself, think about taking a look at this document which gives answers gives solutions about rear end noises on Lexus GX.
Metal rattling exhaust sound Lexus GX
Damaged exhaust muffler noise Lexus GX
If, alternatively, 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 injured. Indeed, it is possible that either your baffles, the catalyst or the silencer are the reason of this noise. To confirm, go under your Lexus GX, 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 GX, you will either have to find a second hand one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Lexus GX : Silentblock, loose pot
Finally, a metallic exhaust noise on your Lexus GX may be linked to a poor attachment of your exhaust to your vehicle. Indeed, over time, vibrations, the pot fasteners on the vehicle 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 responds. 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 replaced.
