Do you listen a metallic noise on your Kia Optima when ever you drive? We can understand that this is not relaxing and that you are wandering. Listening such a noise is not always a good indicator, but it may also be nothing serious. To support you fix this issue, our redaction decided to write this content to help you in this investigation. In order to conduct this research as accurately as possible, we will first have a look at the possible origins of metallic noise in the front of your car, and then, if the metallic noise comes from the rear of your car.
Metal noise Kia Optima coming from the front end of the car
I notice a metal rattling noise coming from wheels
- Metallic noise caused by your bearing
- Metalic noise coming from brake
- Stabilizer bar worn
One of the possible causes of metal noise manifestations on your Kia Optima, may be that one of your bearing is tired, it will tend to generate a loud noise that increase when stressed (turns faster and faster). So bear in mind to verify by taking speed (neutral gear and window open to give consideration only to noise of the wheels) that the noise is well established here, if this is the case change it or them fairly quickly. If, on the other hand, this noise only manifests itself with an engaged speed, examine this guide on loud noise on Kia Optima, you will most likely find a solution to your issue.
If you experience a metalic noise on Kia Optima and you have the feeling that it comes from your front wheels, it is highly possible that it is your pads or discs that are the cause. In fact, a disc or a set of dead plates will make a strong metallic friction noise that you will inevitably feel. To verify this, put your car on safety stand, and verify the state of your discs and pads by taking out the wheel. If they are involved, change them fairly quickly , otherwise you will no longer be able to brake. If you encounter a metallic noise from your car, and you want infos about it, read this article for more info about brake noises on xxx.
If it is rather when you are turning, passing over a bump or sidewalk that you notice a metallic noise on your Kia Optima, then your rods may be worn. Whether it is the steering or the stabilizer bar, their wear will trigger a metallic snap when they hit or change direction. To verify this, position yourself under your car, without the wheels, and move your rods, if they only oppose very little force it is likely that they will have to be swapped. If this is your case, we recommend that you consult this content for a complete guide about steering noises on Kia Optima.
Other sources
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- Engine silentblock
- Dead gearbox, or broken pinion
A little like worn stabilizer bar, if your engine silent blocks are weakened, you will feel as you pass over damaged roads or sidewalks, loud metallic noises on your Kia Optima. Once screwed up, they will no longer fulfill their task as shock absorbers and, with each impact, or violent acceleration, a noise will occur. Therefore, please remember to verify their status and change them if necessary. Feel free to read this content which is a complete file about strut mounts noises on Kia Optima, how to verify their state and change them.
Finally, the last typical cause of metallic noise on Kia Optima. It’s because your transmission system is the origin. It is plausible, either because of improper use of the gearbox or because of excessive wear, that some gears in your gearbox have broken and are wandering around in it. They will then make a continuous metal rattling noise. That you shouldn’t feel in neutral. If this is your case, we recommend that you read this detailed guide on the origins of steering noises on Kia Optima.
Metallic noise Kia Optima coming from the rear end of the vehicle
Exhaust pipe
If, on the other hand, you are subject to an exhaust noise that is more of a metallic type, it is possible that one or more parts of your exhaust may be damaged. In fact, it is possible that either the catalyst or the silencer may be the cause of this noise. To be sure, go under the car, cold, and knock each of the previously stated parts with a hammer to determine the origin of the noise. You should acknowledge things moving in the problematic part, if it’s the exhaust baffles, you can try to hammer in the section a little to try to block them and limit their movements. If it is a dead catalyst, it will be necessary to consider swapping it, as well as the silencer. In such a case, to eliminate the metallic noise on your Kia Optima, you will either have to find a second hand one and do it yourself, or go to your mechanic.
Noise from wheels
- Bearings
- Brake pads or discs
As for the bearings of your car, it is possible that with wear they are at the origin of your metallic noises on your Kia Optima. Go a little further up in the content where you will find information of the solution already exposed for the front part of the car.
Finally, if the noise comes from your discs brakes or pads, you should refer to the part in question in the first section of this manual.
