Noise over bumps - Kia Cadenza Forum
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post #1 of 17 (permalink) Old 03-09-2020, 09:36 PM Thread Starter
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Noise over bumps

I have a 2014 Cadenza, and it seems awfully loud over bumps. I drove a base 2019 optima today and it seemed much more isolated. Is this just a problem with our cars or could it be something specific to mine? How are your cars over bumps?
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post #2 of 17 (permalink) Old 03-09-2020, 10:40 PM
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I don't get any noise over bumps. 2015 @ 47K or so. One of the things that attracted me to the car was how quiet it is.
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post #3 of 17 (permalink) Old 03-10-2020, 12:17 AM Thread Starter
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Originally Posted by joegr View Post
I don't get any noise over bumps. 2015 @ 47K or so. One of the things that attracted me to the car was how quiet it is.
Hmph, Iíll have to get mine checked out then. There are significant *thumps* over even the smallest of bumps. Itís practically silent other than that.
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post #4 of 17 (permalink) Old 03-10-2020, 06:57 AM
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Depending on the size/intensity of the bump, my car will sometimes make creaking noises from the sunroof or corner of the dash or rear package shelf if it's a sharp type bump. Larger but not impactful types of bumps exhibit no noise in my car. Never any thumps unless my car is basically over loaded or close to the weight limit (full of luggage and 5 adults) then hit a larger bump but that is the bump stops doing their job at the end of suspension travel.

2014 SXL, only mods are after market rims due to recall.
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post #5 of 17 (permalink) Old 03-10-2020, 12:58 PM Thread Starter
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Originally Posted by onlyjeeps View Post
Depending on the size/intensity of the bump, my car will sometimes make creaking noises from the sunroof or corner of the dash or rear package shelf if it's a sharp type bump. Larger but not impactful types of bumps exhibit no noise in my car. Never any thumps unless my car is basically over loaded or close to the weight limit (full of luggage and 5 adults) then hit a larger bump but that is the bump stops doing their job at the end of suspension travel.
Mines more of a thump that seems to come from the tires and/or the body of the car itself. Itís as if the wheels are connected directly to the body. Maybe my shock absorbers are bad. Iíll have to get them looked at. Thanks for your insight!
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post #6 of 17 (permalink) Old 03-10-2020, 02:11 PM
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I would also check for any loose (or bent or broken) parts of the suspension.
Can you duplicate the noise when the car is parked by pushing down on any of the corners?
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post #7 of 17 (permalink) Old 03-10-2020, 06:15 PM Thread Starter
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Originally Posted by joegr View Post
I would also check for any loose (or bent or broken) parts of the suspension.
Can you duplicate the noise when the car is parked by pushing down on any of the corners?
Iíll take a look when it gets back to the shop (some idiot rear-ended me ) but Iíve tested pushing down before and I havenít noticed any noise. I donít think itís a suspension problem in THAT way, it still seems to ride fine (though a bit stiff) but any sharp bumps just cause a thump. Sort of a pressure build up thump. It seems better when I roll the windows down. Itís hard to explain
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post #8 of 17 (permalink) Old 03-11-2020, 04:39 PM
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If I remember correctly someone in the forums (forgot who) had problems with a spring in their front. If the spring has broken this could be a symptom, get it looked at to make sure you're not damaging part of your frame.

2014 Kia Cadenza, Metallic Bronze and Beige, Lux Package

Leased 3/1/14
Purchased 1/28/17

Additions:
-Full Korean K re-badge
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-Racing sport pedals

Cadenza products available at: https://www.k5optimastore.com/collec...denza-products
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post #9 of 17 (permalink) Old 03-13-2020, 01:13 AM Thread Starter
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If I remember correctly someone in the forums (forgot who) had problems with a spring in their front. If the spring has broken this could be a symptom, get it looked at to make sure you're not damaging part of your frame.
Thatíll be the first thing that I do when I get it back, thanks!
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post #10 of 17 (permalink) Old 03-20-2020, 10:09 AM
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Mine thumps over bumps as well. My impression is that it's due to the 19" wheels on the SX-L. Short sidewall on the tires doesn't leave much flexibility to cushion bumps.

When it comes time to get new tires, I might move to 18" wheels to get a taller tire sidewall. That would make it peaceful over bumps.

'14 Cadenza SX-L, '16 Sedona SX
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