It is never pleasing to notice a sound you don’t know about, and which results from your car. Thus, what if you notice an exhaust noise that remains on your Alfa Romeo 147? It is highly probable that this is a minor problem, however, before being sure, it is better to carry out some verifications. Our team has created this to help you fix it. First, we will look at the possible causes if you have a muffled exhaust sound on your Alfa Romeo 147 and second, if you have a metallic rattling noise on your Alfa Romeo 147.
Muffled exhaust noise Alfa Romeo 147
Exhaust pipe with holes Alfa Romeo 147
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the engine, which could in time become dirty, for example. If you have an exhaust noise on your Alfa Romeo 147, it is plausible that it is due to a crack in the exhaust pipe, this is the most common reason. In order to verify this, situate someone under the running motor car and accelerate to help them determine the origin of the hole. Once found, 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 Alfa Romeo 147
The other possibility of being subjected to a muffled exhaust noise on Alfa Romeo 147 is to have a part of the exhaust unit that has dislocated due to vibrations for example. Indeed some junctions of the different parts of the pot can loosen over time and induce 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 Alfa Romeo 147 to discern the problem area, and tighten or swap the bolts. If you hear a muffled sound but after examining 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 Alfa Romeo 147.
Metal rattling exhaust sound Alfa Romeo 147
Damaged exhaust muffler noise Alfa Romeo 147
If, on the other hand, you are exposed 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 possible that either your baffles, the catalyst or the silencer are the induce of this noise. To confirm, go under your Alfa Romeo 147, 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 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 Alfa Romeo 147, you will either have to find a second hand one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Alfa Romeo 147 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Alfa Romeo 147 may be connected 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 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 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.
