It is rarely pleasant to listen to a sound you don’t know about, and which comes from your car. Thus, what if you find an exhaust noise that remains on your Vauxkhall Astra? It is highly probable that this is a minor problem, however, before being sure, it is better to conduct some verifications. Our team has created this to support you resolve it. First, we will look at the possible causes if you have a muffled exhaust sound on your Vauxkhall Astra and second, if you have a metallic rattling noise on your Vauxkhall Astra.
Muffled exhaust noise Vauxkhall Astra
Exhaust pipe with holes Vauxkhall Astra
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 Vauxkhall Astra, it is possible that it is due to a hole in the exhaust pipe, this is the most typical explanation. In order to confirm this, position somebody under the running motor car and accelerate to help them locate the origin of the hole. Once located, 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 Vauxkhall Astra
The other possibility of being subjected to a muffled exhaust noise on Vauxkhall Astra is to have a part of the exhaust system that has dislocated resulting from 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 purpose. These fumes will then make a loud noise. Same technique as above, we go under the Vauxkhall Astra to determine the problem area, and tighten or change the bolts. If you hear a muffled sound but after verifying 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 Vauxkhall Astra.
Metal rattling exhaust sound Vauxkhall Astra
Damaged exhaust muffler noise Vauxkhall Astra
If, on the other hand, you are subject 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 injured. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the reason of this noise. To be certain, go under your Vauxkhall Astra, cold, and tap each of the previously stated parts with a hammer to determine 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 changing it, as well as the silencer. In this case, to stop the exhaust noise on your Vauxkhall Astra, you will either have to find a used one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Vauxkhall Astra : Silentblock, loose pot
Finally, a metallic exhaust noise on your Vauxkhall Astra may be connected to a poor attachment of your exhaust to your car. Indeed, over the years, vibrations, the pot fasteners on the car 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, 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 swapped.
