It is rarely pleasant to perceive a sound you don’t know about, and which will arrive from your car. So, what if you spot an exhaust noise that continues on your Volkswagen Polo 4? It is highly possible that this is a minimal problem, however, before being sure, it is better to operate some inspections. Our team has produced this to help you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Volkswagen Polo 4 and second, if you have a metallic rattling noise on your Volkswagen Polo 4.
Muffled exhaust noise Volkswagen Polo 4
Exhaust pipe with holes Volkswagen Polo 4
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the engine unit, which could finally become dirty, for example. If you have an exhaust noise on your Volkswagen Polo 4, it is plausible that it is due to a crack in the exhaust pipe, this is the most usual cause. In order to confirm this, locate someone under the running motor vehicle and accelerate to help them discover 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 changed.
Element dislocated exhaust pipe Volkswagen Polo 4
The other possibility of being subjected to a muffled exhaust noise on Volkswagen Polo 4 is to have a part of the exhaust system that has dislocated as a consequence of vibrations for example. In fact some junctions of the different parts of the pot can loosen after a while and generate an exhaust gas leak in places not intended for this goal. These fumes will then produce a loud noise. Same technique as above, we go under the Volkswagen Polo 4 to discern the problem region, and tighten or swap the bolts. If you hear a muffled sound but after checking it doesn’t seem to come from the pot itself, consider looking at this document which gives answers gives solutions about rear end noises on Volkswagen Polo 4.
Metal rattling exhaust sound Volkswagen Polo 4
Damaged exhaust muffler noise Volkswagen Polo 4
If, on the other hand, you are exposed to an exhaust sound that is more of a metallic type, it is plausible that one or more parts of your exhaust may be injured. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the reason of this noise. To confirm, go under your Volkswagen Polo 4, cold, and tap each of the previously stated parts with a hammer to discern 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 out of date catalyst, it will be necessary to consider changing it, as well as the silencer. In this case, to stop the exhaust noise on your Volkswagen Polo 4, you will either have to find a used one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Volkswagen Polo 4 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Volkswagen Polo 4 may be related to a poor attachment of your exhaust to your vehicle. In fact, over time, vibrations, the pot fasteners on the vehicle 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 responds. 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 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 changed.
