It is never pleasant to hear a sound you don’t know about, and which originates from your car. So, what if you notice an exhaust noise that continues on your Citroen C4? It is highly possible that this is a minimal trouble, however, before being sure, it is better to operate some verifications. Our team has written this to support you fix it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Citroen C4 and second, if you have a metallic rattling noise on your Citroen C4.
Muffled exhaust noise Citroen C4
Exhaust pipe with holes Citroen C4
Having a muffled sound from its exhaust is not insignificant and can end up in over-consumption, or a malfunction of the engine unit, which could in the end become dirty, for example. If you have an exhaust noise on your Citroen C4, it is possible that it is due to a hole in the exhaust pipe, this is the most typical cause. To be able to confirm this, locate someone under the running motor car and accelerate to help them discover 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 swapped.
Element dislocated exhaust pipe Citroen C4
The other possibility of being the subject of a muffled exhaust noise on Citroen C4 is to have a part of the exhaust device that has dislocated due to vibrations for example. In fact some junctions of the different parts of the pot can loosen with time and generate an exhaust gas leak in places not intended for this goal. These fumes will then make a loud noise. Same technique as above, we go under the Citroen C4 to discover the trouble region, 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 Citroen C4.
Metal rattling exhaust sound Citroen C4
Damaged exhaust muffler noise Citroen C4
If, on the other hand, you are subject to an exhaust sound that is more of a metallic sort of, it is possible that one or more parts of your exhaust may be broken. 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 Citroen C4, cold, and tap each of the previously stated parts with a hammer to discover 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 Citroen C4, you will either have to find a resale one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Citroen C4 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Citroen C4 may be related to a poor attachment of your exhaust to your car. In fact, over the years, vibrations, the pot fasteners on the car 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 reacts. Backwards there should be some play and be able to move but not too much. The closer you get to the engine unit, 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.
