Tire question

[jrl3741]

Hi Folks,

I purchased a 2010 4.6 Genesis in Feb with 15k miles and seems to be developing road noise. It still has the original Dunlop's. I assume it is tire noise since, but after searching this forum (and others) few people have replaced tires and still have the road noise. Some say it is wheel bearings, some say it could be a drive shaft out of balance. Any suggestions how to get this diagnosed right the 1st time? I would hate to spend $800 on new tires to still have the noise.

Thanks in advance!

 

[gameday22]

Hi Folks,

I purchased a 2010 4.6 Genesis in Feb with 15k miles and seems to be developing road noise. It still has the original Dunlop's. I assume it is tire noise since, but after searching this forum (and others) few people have replaced tires and still have the road noise. Some say it is wheel bearings, some say it could be a drive shaft out of balance. Any suggestions how to get this diagnosed right the 1st time? I would hate to spend $800 on new tires to still have the noise.

Thanks in advance!

The road noise was most likely always there, your hearing it more now as the tires reach the end of their serviceability. How many miles are you at now? Most only get 17-23k miles out of the Dunlop's before they need to replaced, and this is with proper tire care (balance/rotations and alignment). If it really seems like something more is wrong then I would suggest bringing it in to the service department.


If you don't have a tread gauge available then the following is an excellent way to check your remaining tire life:


U.S. coins can be substituted for a tire tread depth gauge as tires wear to the critical final few 32nds of an inch of their remaining tread depth.


Place a penny into several tread grooves across the tire. If part of Lincoln's head is always covered by the tread, you have more than 2/32" of tread depth remaining

Place a quarter into several tread grooves across the tire. If part of Washington's head is always covered by the tread, you have more than 4/32" of tread depth remaining

Place a penny into several tread grooves across the tire. If the top of the Lincoln Memorial is always covered by the tread, you have more than 6/32" of tread depth remaining.

Once you have determined the approximate remaining tread depth in the first location, you can complete your measurement of each tire by placing the coin into additional locations at lease 15 inches apart around the tire's central circumferential groove, as well as in its inner and outer grooves. This will help detect uneven wear caused by mechanical or service conditions.


The Law

According to most states' laws, tires are legally worn out when they have worn down to 2/32" of remaining tread depth. To help warn drivers that their tires have reached that point, tires sold in North America are required to have indicators molded into their tread design called "wear bars" which run across their tread pattern from their outside shoulder to inside shoulder. Wear bars are designed to visually connect the elements of the tire's tread pattern and warn drivers when their tires no longer meet minimum tread depth requirements.


Common Sense

However, as a tire wears it's important to realize that the tire's ability to perform in rain and snow will be reduced. With 2/32" of remaining tread depth, resistance to hydroplaning in the rain at highway speeds has been significantly reduced, and traction in snow has been virtually eliminated.

If rain and wet roads are a concern, you should consider replacing your tires when they reach approximately 4/32" of remaining tread depth. Since water can't be compressed, you need enough tread depth to allow rain to escape through the tire's grooves. If the water can't escape fast enough, your vehicle's tires will be forced to hydroplane (float) on top of the water, losing traction.

If snow-covered roads are a concern, you should consider replacing your tires when they reach approximately 6/32" of remaining tread depth to maintain good mobility. You need more tread depth in snow because your tires need to compress the snow in their grooves and release it as they roll. If there isn't sufficient tread depth, the "bites" of snow your tires can take on each revolution will be reduced to "nibbles," and your vehicle's traction and mobility will be sacrificed. Because tread depth is such an important element for snow traction, winter tires usually start with noticeably deeper tread depths than typical All-Season or summer tires. Some winter tires even have a second series of "wear bars" molded in their tread pattern indicating approximately 6/32" remaining tread depth to warn you when your tires no longer meet the desired tread depth.


All tire measurement information is property of TireRack.com

 

[Mark_888]

Hi Folks,

I purchased a 2010 4.6 Genesis in Feb with 15k miles and seems to be developing road noise. It still has the original Dunlop's. I assume it is tire noise since, but after searching this forum (and others) few people have replaced tires and still have the road noise. Some say it is wheel bearings, some say it could be a drive shaft out of balance. Any suggestions how to get this diagnosed right the 1st time? I would hate to spend $800 on new tires to still have the noise.

Thanks in advance!

Need a lot more info on the noise. Does it always occur, or only at certain speeds?

If your OEM Dunlop's have 15K miles, they probably don't have a lot more miles on them anyway (most people got 15K-20K out of them).

 

[homeofstone]

A good set of tires such as Continental DWS or Bridgestone Serenity Plus will be more than 800.00 out the door. Cost will be from 1000.00 to 1300.00 depending on speed rating. Most 18" tires for the Genny are V or W rated. My Dunflpos were worn out at 18,000 miles. My Bridgestones lasted 48,000 miles. Check tirerack.com and thsi forum for tire info.

 

[gameday22]

A good set of tires such as Continental DWS or Bridgestone Serenity Plus will be more than 800.00 out the door. Cost will be from 1000.00 to 1300.00 depending on speed rating. Most 18" tires for the Genny are V or W rated. My Dunflpos were worn out at 18,000 miles. My Bridgestones lasted 48,000 miles. Check tirerack.com and thsi forum for tire info.

The Continental ExtremeContact DWS's are currently $704+ Shipping. Size is 235/50ZR18 (W Speed Rating). Shipping shows a range of $45-80 depending on the zip code and shipping warehouse location. I had mine drop shipped directly to the dealer since that's who was going to install them.

Bridgestone Serenity Plus: $808, same size/speed rating.

Michelin Pilot Sport A/S Plus: $852, same size, speed rating is higher.

These are the current prices on Tirerack.com (might find them cheaper elsewhere).

 

[homeofstone]

The Continental ExtremeContact DWS's are currently $704+ Shipping. Size is 235/50ZR18 (W Speed Rating). Shipping shows a range of $45-80 depending on the zip code and shipping warehouse location. I had mine drop shipped directly to the dealer since that's who was going to install them.

Bridgestone Serenity Plus: $808, same size/speed rating.

Michelin Pilot Sport A/S Plus: $852, same size, speed rating is higher.

These are the current prices on Tirerack.com (might find them cheaper elsewhere).

My W rated Bridgestone Turanza Serenity Plus set that I purchased last month cost a little over 1300.00 total. That included tires, lifetime balance, new TPMS valves, alignment, install, epa fees, state disposal fees, and state and local sales taxes. I always get new TPMS valves when a tire is taken off a rim and a 4 wheel alignment when new tires are put on one of my vehicles.

 

[kayroe]

I wish you much luck with your noise issue. I also have a 2010 4.6 that makes a noise somewhat like a harmonic resonance. I have had two different sets of tires, a new rear differential, new drive shaft,and new hub bearings on all four axles. Hyundai engineers are using R&D in an attempt to find the problem. I have owned this car for over 2.5 years and this problem has been ongoing from the very beginning. I really wonder what my options will be if they can't find the problem.

 

[homeofstone]

I wish you much luck with your noise issue. I also have a 2010 4.6 that makes a noise somewhat like a harmonic resonance. I have had two different sets of tires, a new rear differential, new drive shaft,and new hub bearings on all four axles. Hyundai engineers are using R&D in an attempt to find the problem. I have owned this car for over 2.5 years and this problem has been ongoing from the very beginning. I really wonder what my options will be if they can't find the problem.

Has dealer checked your intake and exhaust systems? Also, has dealer run car on rack and tried to find noise with mechanic's stethoscope?

 

[jrl3741]

Thanks for everyone's input! The tire wear measurement info was very helpful. I have 4/32" of tread depth remaining.

Current mileage is 16,500.

The noise, like a humming sound is always there and gets much loader as the speed increases. I kind of feel like the tires or something else create drag or resistance while driving.

Did you notice a road noise decrease when you replaced tires?

I know many forum members reccomend the DWS's, Serenity Plus or the Pilot Sport A/S Plus. Does speed rating make a difference with road noise?

 

[kayroe]

The Hyundai service used multiple scopes and checked the exhaust and intake. I think that this car may have been set down too hard in port and possibly flexed the frame too much.

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[homeofstone]

Thanks for everyone's input! The tire wear measurement info was very helpful. I have 4/32" of tread depth remaining.

Current mileage is 16,500.

The noise, like a humming sound is always there and gets much loader as the speed increases. I kind of feel like the tires or something else create drag or resistance while driving.

Did you notice a road noise decrease when you replaced tires?

I know many forum members reccomend the DWS's, Serenity Plus or the Pilot Sport A/S Plus. Does speed rating make a difference with road noise?

My dunflpos got noisier as they wore. I got 18,000 miles on the set then purchased a set of Bridgestone Turanza Serenity tires and got 43,000 miles on them. Last month I purchased a set of Bridgestone Turanza Serenity Plus tires and have 65,000 miles on the car now. The Serenity tires are very quiet and give a very good ride. The Continental DWS tires per post on this forum are also very smooth and quiet.

 

[QuantumRift]

Tire noise occurs due to the tread pattern impacting the ground at high speeds. The main cause of tire (ie road) noise, is tread design. Some tire treads are noisier than others and vary based on the tire brand and tread design.

Here are three factors that influence tire noise:

Tire Noise and Treads: In general, the smaller the tread blocks on a tire, the less noise the tire will make while driving. A larger tread is noticeably louder. Tire noise also varies a tremendous amount among brands and tread designs.

Tire Noise and Rubber: A softer rubber on your tires will mean you have much less tire noise, but the trade-off is that softer tires mean a shorter life for the rubber and you will need to replace your tires sooner.

Air Pressure and Tire Noise: When picking out your next set of tires, keep in mind that the lower the amount of air pressure your tires require, the quieter your ride will be. For example, choosing a tire with a 25 psi recommendation won't make as much road noise as one with a 35 psi rating, in general.

and this:

Tires noise are classified and described as follows

1) Pattern Noise, pattern noise occurs during vehicle operation when air is trapped in the tread pattern and then suddenly released as the tire rolls along the road surface.

2) Squealing, squalling occurs during rapid acceleration, hard braking, and cornering at relatively high speeds. Portions of the tire tread in contact with the road surface begin a self-induced vibration that produces high pitched squealing sounds for several seconds.

3) Road Noise, Noises generated when a vehicle passes over a dimpled road surface or a specifically constructed road surface. Air beneath the tires is forced into the dimples and then escapes to produce the noise. Road noise is usually similar to pattern noise.

4) Elastic vibration noise, Noise produced when a vehicle using tires with poor uniformity passes over a rough road surface. Excitation from either the road or the tire creates the elastic vibration noise.

5) Slip noise, Noise produced by tread movement and slippage at the inside of the tire and road surface contact area.

When selecting the best tire for your car consider also to choose a tire that produces a low level of tire noise, choosing a tire with multiple pitch pattern is a good start if you want to reduced tire noise.