It is rarely pleasing to discover a sound you don’t know about, and which will arrive from your car. So, what if you discover an exhaust noise that remains on your Opel Astra 5? It is highly possible that this is a minor trouble, however, before being sure, it is better to conduct some checks. Our team has created this to help you resolve it. First, we will look at the possible causes if you have a muffled exhaust sound on your Opel Astra 5 and second, if you have a metallic rattling noise on your Opel Astra 5.
Muffled exhaust noise Opel Astra 5
Exhaust pipe with holes Opel Astra 5
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 Opel Astra 5, it is plausible that it is due to a hole in the exhaust pipe, this is the most classic reason. To be able to verify this, position someone under the running motor vehicle and accelerate to help them locate the starting point 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 swapped.
Element dislocated exhaust pipe Opel Astra 5
The other possibility of being suffering from a muffled exhaust noise on Opel Astra 5 is to have a part of the exhaust unit that has dislocated caused by vibrations for example. Indeed some junctions of the different parts of the pot can loosen after some time and generate 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 Opel Astra 5 to determine the trouble place, 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, consider taking a look at this document which gives answers gives solutions about rear end noises on Opel Astra 5.
Metal rattling exhaust sound Opel Astra 5
Damaged exhaust muffler noise Opel Astra 5
If, alternatively, you are exposed 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 injured. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the reason of this noise. To make sure, go under your Opel Astra 5, cold, and tap each of the previously stated parts with a hammer to determine 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 swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Opel Astra 5, you will either have to find a resale one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Opel Astra 5 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Opel Astra 5 may be related to a poor attachment of your exhaust to your vehicle. Indeed, 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 swapped.
