It is rarely pleasant to notice a sound you don’t know about, and which will arrive from your car. Thus, what if you notice an exhaust noise that continues on your Mazda 3? It is highly possible that this is a small trouble, however, before being sure, it is better to operate some verifications. Our team has produced this to support you solve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Mazda 3 and second, if you have a metallic rattling noise on your Mazda 3.
Muffled exhaust noise Mazda 3
Exhaust pipe with holes Mazda 3
Having a muffled sound from its exhaust is not insignificant and can end in over-consumption, or a malfunction of the engine unit, which could finally become dirty, for example. If you have an exhaust noise on your Mazda 3, it is plausible that it is due to a hole 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 origin 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 replaced.
Element dislocated exhaust pipe Mazda 3
The other possibility of being subjected to a muffled exhaust noise on Mazda 3 is to have a part of the exhaust device that has dislocated because of vibrations for example. Indeed 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 generate a loud noise. Same technique as above, we go under the Mazda 3 to discover the trouble region, 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 document which gives answers gives solutions about rear end noises on Mazda 3.
Metal rattling exhaust sound Mazda 3
Damaged exhaust muffler noise Mazda 3
If, on the other hand, you are subject 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 broken. Indeed, it is possible that either your baffles, the catalyst or the silencer are the reason of this noise. To be certain, go under your Mazda 3, cold, and tap each of the previously stated parts with a hammer to discover 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 Mazda 3, you will either have to find a used one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Mazda 3 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Mazda 3 may be related 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 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 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.
