It is rarely pleasing to find out a sound you don’t know about, and which results from your car. So, what if you spot an exhaust noise that persists on your Volvo XC90? It is highly possible that this is a minimal trouble, 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 causes if you have a muffled exhaust sound on your Volvo XC90 and second, if you have a metallic rattling noise on your Volvo XC90.
Muffled exhaust noise Volvo XC90
Exhaust pipe with holes Volvo XC90
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 finally become dirty, for example. If you have an exhaust noise on your Volvo XC90, it is plausible that it is due to a crack in the exhaust pipe, this is the most common explanation. In order to confirm this, position someone under the running motor car and accelerate to help them determine the source 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 Volvo XC90
The other possibility of being suffering from a muffled exhaust noise on Volvo XC90 is to have a part of the exhaust unit that has dislocated resulting from 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 goal. These fumes will then create a loud noise. Same technique as above, we go under the Volvo XC90 to identify the trouble location, and tighten or swap the bolts. If you hear a muffled sound but after verifying it doesn’t seem to come from the pot itself, think about having a look at this content which gives answers gives solutions about rear end noises on Volvo XC90.
Metal rattling exhaust sound Volvo XC90
Damaged exhaust muffler noise Volvo XC90
If, alternatively, you are exposed to an exhaust sound that is more of a metallic sort of, it is plausible that one or more parts of your exhaust may be destroyed. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To confirm, go under your Volvo XC90, cold, and tap each of the previously stated parts with a hammer to identify 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 swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Volvo XC90, you will either have to find a used one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Volvo XC90 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Volvo XC90 may be linked to a poor attachment of your exhaust to your car. Indeed, after some time, 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 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 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.
