It is never pleasant to perceive a sound you don’t know about, and which comes from your car. Thus, what if you discover an exhaust noise that remains on your Alfa Romeo 156? It is highly probable that this is a minor trouble, however, before being sure, it is better to execute some investigations. Our team has created this to support you fix it. First, we will look at the possible causes if you have a muffled exhaust sound on your Alfa Romeo 156 and second, if you have a metallic rattling noise on your Alfa Romeo 156.
Muffled exhaust noise Alfa Romeo 156
Exhaust pipe with holes Alfa Romeo 156
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 time become dirty, for example. If you have an exhaust noise on your Alfa Romeo 156, it is possible that it is due to a hole in the exhaust pipe, this is the most classic explanation. To be able to confirm this, position somebody under the running motor automobile and accelerate to help them identify 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 Alfa Romeo 156
The other possibility of being suffering from a muffled exhaust noise on Alfa Romeo 156 is to have a part of the exhaust device that has dislocated caused by vibrations for example. In fact 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 purpose. These fumes will then produce a loud noise. Same technique as above, we go under the Alfa Romeo 156 to discover the trouble location, and tighten or replace the bolts. If you hear a muffled sound but after checking it doesn’t seem to come from the pot itself, think about taking a look at this document which gives solutions gives solutions about rear end noises on Alfa Romeo 156.
Metal rattling exhaust sound Alfa Romeo 156
Damaged exhaust muffler noise Alfa Romeo 156
If, alternatively, you are exposed to an exhaust sound that is more of a metallic type of, it is possible that one or more parts of your exhaust may be destroyed. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the induce of this noise. To be certain, go under your Alfa Romeo 156, 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 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 156, you will either have to find a resale one and do it yourself, or go to your technician.
Metal rattling exhaust noise Alfa Romeo 156 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Alfa Romeo 156 may be linked to a poor attachment of your exhaust to your automobile. In fact, after some time, vibrations, the pot fasteners on the automobile 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 behaves. 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 replaced.
