It is rarely pleasant to notice a sound you don’t know about, and which comes from your car. So, what if you identify an exhaust noise that is persistant on your Kia Optima? It is highly probable that this is a small issue, however, before being sure, it is better to operate some inspections. Our team has written this to support you solve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Kia Optima and second, if you have a metallic rattling noise on your Kia Optima.
Muffled exhaust noise Kia Optima
Exhaust pipe with holes Kia Optima
Having a muffled sound from its exhaust is not insignificant and can end up in over-consumption, or a malfunction of the engine, which could after a while become dirty, for example. If you have an exhaust noise on your Kia Optima, it is possible that it is due to a crack in the exhaust pipe, this is the most usual explanation. To be able to confirm this, locate a friend or relative under the running motor vehicle and accelerate to help them discover 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 Kia Optima
The other possibility of being subjected to a muffled exhaust noise on Kia Optima 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 over time and cause 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 Kia Optima to discover the issue 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 article which gives solutions gives solutions about rear end noises on Kia Optima.
Metal rattling exhaust sound Kia Optima
Damaged exhaust muffler noise Kia Optima
If, alternatively, you are subject to an exhaust sound that is more of a metallic type, it is possible that one or more parts of your exhaust may be broken. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To be certain, go under your Kia Optima, 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 Kia Optima, you will either have to find a second hand one and do it yourself, or go to your technician.
Metal rattling exhaust noise Kia Optima : Silentblock, loose pot
Finally, a metallic exhaust noise on your Kia Optima may be linked to a poor attachment of your exhaust to your vehicle. Indeed, as time passes, 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 reacts. 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 swapped.
