It is never pleasing to discover a sound you don’t know about, and which comes from your car. Thus, what if you spot an exhaust noise that is persistant on your saab 9 3? It is highly probable that this is a minor trouble, however, before being sure, it is better to operate some investigations. Our team has created this to support you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your saab 9 3 and second, if you have a metallic rattling noise on your saab 9 3.
Muffled exhaust noise saab 9 3
Exhaust pipe with holes saab 9 3
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the car engine, which could in the end become dirty, for example. If you have an exhaust noise on your saab 9 3, it is plausible that it is due to a crack in the exhaust pipe, this is the most common reason. To be able to validate this, situate someone under the running motor car and accelerate to help them determine the origin 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 swapped.
Element dislocated exhaust pipe saab 9 3
The other possibility of being subjected to a muffled exhaust noise on saab 9 3 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 along with time and generate an exhaust gas leak in places not intended for this goal. These fumes will then make a loud noise. Same technique as above, we go under the saab 9 3 to discover the trouble region, 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, consider taking a look at this article which gives answers gives solutions about rear end noises on saab 9 3.
Metal rattling exhaust sound saab 9 3
Damaged exhaust muffler noise saab 9 3
If, alternatively, you are subject 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 plausible that either your baffles, the catalyst or the silencer are the reason of this noise. To make sure, go under your saab 9 3, cold, and tap each of the previously stated parts with a hammer to discover 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 replacing it, as well as the silencer. In this case, to stop the exhaust noise on your saab 9 3, you will either have to find a second hand one and do it yourself, or go to your technician.
Metal rattling exhaust noise saab 9 3 : Silentblock, loose pot
Finally, a metallic exhaust noise on your saab 9 3 may be linked to a poor attachment of your exhaust to your car. In fact, over time, vibrations, the pot fasteners on the car chassis can come off. In this case, you need to verify, when cold, that the pot holds well, to try to get it to move in different directions and watch how it reacts. Backwards there should be some play and be able to move but not too much. The closer you get to the engine, the more fixed it should be. Visually verify 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 swapped.
