It is never pleasing to notice a sound you don’t know about, and which will arrive from your car. So, what if you discover an exhaust noise that continues on your Subaru Legacy? It is highly possible that this is a minimal trouble, however, before being sure, it is better to conduct some verifications. Our team has produced this to support you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Subaru Legacy and second, if you have a metallic rattling noise on your Subaru Legacy.
Muffled exhaust noise Subaru Legacy
Exhaust pipe with holes Subaru Legacy
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the engine, which could in time become dirty, for example. If you have an exhaust noise on your Subaru Legacy, 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, position somebody under the running motor vehicle and accelerate to help them locate the starting point of the hole. Once discovered, 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 Subaru Legacy
The other possibility of being confronted with a muffled exhaust noise on Subaru Legacy is to have a part of the exhaust system that has dislocated resulting from vibrations for example. Indeed some junctions of the different parts of the pot can loosen after some 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 Subaru Legacy to define the trouble area, 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 having a look at this article which gives solutions gives solutions about rear end noises on Subaru Legacy.
Metal rattling exhaust sound Subaru Legacy
Damaged exhaust muffler noise Subaru Legacy
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 injured. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To be certain, go under your Subaru Legacy, cold, and tap each of the previously stated parts with a hammer to define the origin 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 changing it, as well as the silencer. In this case, to stop the exhaust noise on your Subaru Legacy, you will either have to find a resale one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Subaru Legacy : Silentblock, loose pot
Finally, a metallic exhaust noise on your Subaru Legacy may be linked to a poor attachment of your exhaust to your vehicle. Indeed, as time passes, vibrations, the pot fasteners on the vehicle 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.
