It is never pleasing to perceive a sound you don’t know about, and which results from your car. Thus, what if you spot an exhaust noise that continues on your Infiniti QX80? It is highly probable that this is a small issue, however, before being sure, it is better to execute some inspections. Our team has created this to help you fix it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Infiniti QX80 and second, if you have a metallic rattling noise on your Infiniti QX80.
Muffled exhaust noise Infiniti QX80
Exhaust pipe with holes Infiniti QX80
Having a muffled sound from its exhaust is not insignificant and can cause 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 Infiniti QX80, it is plausible that it is due to a hole in the exhaust pipe, this is the most classic cause. In order to confirm this, situate somebody under the running motor vehicle and accelerate to help them identify the starting point 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 Infiniti QX80
The other possibility of being suffering from a muffled exhaust noise on Infiniti QX80 is to have a part of the exhaust device that has dislocated because of vibrations for example. In fact 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 goal. These fumes will then create a loud noise. Same technique as above, we go under the Infiniti QX80 to discern the issue region, 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, consider looking at this document which gives answers gives solutions about rear end noises on Infiniti QX80.
Metal rattling exhaust sound Infiniti QX80
Damaged exhaust muffler noise Infiniti QX80
If, alternatively, you are subject to an exhaust sound that is more of a metallic type, it is plausible that one or more parts of your exhaust may be weakened. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the reason of this noise. To make sure, go under your Infiniti QX80, cold, and tap each of the previously stated parts with a hammer to discern 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 swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Infiniti QX80, you will either have to find a used one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Infiniti QX80 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Infiniti QX80 may be in connection with a poor attachment of your exhaust to your vehicle. In fact, 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 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 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 changed.
