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Hyundai Sonata Front Suspension "Thunk"

414 messages,  Last post on Dec 06, 2009 at 10:17 AM

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What is this discussion about? Hyundai Sonata, Sedan


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#376 of 414
Re: FYI [espo35] by kaypea
Oct 25, 2009 (11:26 am)
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Replying to: espo35 (Oct 25, 2009 7:59 am)

Its nice of you to post all that but,as you obviously realize there's nothing mentioned about struts.This thread is what-17 pages long and if you read all of it(except the posts that go off topic) almost all of the talk is about that.The person who started this thread spent an amazing amount of time and effort on looking into struts,mounts,etc. and even he has come up with nothing that is conclusive for a fix.He had his struts replaced and says it was about 80 % effective in reducing noise but thinks its coming back.Someone else posted that he had his replaced and it did nothing yet someone posted recently that he did have success with struts replaced by Hyundai.There are also reports on another forum of people having success with aftermarket struts. From what I understand there was a TSB issued for 2006-07 Sonata for rear strut replacement.Which makes it hard to understand for people who have 2009s and are still having the same problems why there isn't one for 2009s.. At this point I'm just trying to figure out what my next step is.
#377 of 414
Re: FYI [kaypea] by espo35
Oct 25, 2009 (2:40 pm)
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Replying to: kaypea (Oct 25, 2009 11:26 am)

There may well be an issue with some '09's that I have not had yet. It could also well be that Hyundai is aware of an issue. TSB's take awhile to be issued. Once a problem is recognized, corrective procedures need to be put in place, parts made available and so on. It could take months.....if there is, indeed a "fix" in the works.
 
I would nicely ask again to drive with a tech. If he hears the noise and says it's normal, ask to drive with him in a like model off their lot.
#378 of 414
Re: FYI [kaypea] by targettuning
Oct 26, 2009 (6:56 am)
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Replying to: kaypea (Oct 25, 2009 11:26 am)

As you note there are as many "fixes" or "non-fixes" on this so-called strut issue as there are people reporting the noise in the first place. I have always contended that the severity of the issue is dependent on owner sensitivity to what may indeed be a normal "thump" that most vehicles would produce over a particular pothole bump or road imperfection. It may be that driver "A" upon hitting such a hole won't even notice something amiss but attribute any noise to the mechanical action of the suspension as it absorbs a wheel drop of 4-5-6 or more inches into a void (pothole) whereas driver "B" hitting a similar hole simply cannot understand why the car makes any noise at all. This may be simplistic but may be a reason why many report no unusual noises and some are driven insane about ......" THE NOISE" !!!!! I will tell you that I have driven many new rental vehicles over the last couple of years from a lot of manufacturers including Hyundai (Sonata, Elantra) Nissan (Versa, Altima) Ford (Fusion, Focus) Toyota (Yaris, Camry) Honda (Accord) Chevrolet (new 2010 Impala this past week-end, Malibu ) Kia (Optima) Pontiac (G-6) and probably others and none....none were silent over bad roads. They all made what I considered acceptible mechanical noises from the hard working suspension on poor secondary or inner city roads. Maybe with my being a "car guy" I am not that overexpectant about the near absence of noise from suspension parts working hard to smooth out the cratered, bombed out roads found nearly everywhere these days.
#379 of 414
Re: FYI [targettuning] by kaypea
Oct 26, 2009 (1:19 pm)
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Replying to: targettuning (Oct 26, 2009 6:56 am)

You make some good points but you don't own one of these cars and you didn't just plunk down some money for one.I would say that,in general my car's suspension is maybe louder that usual.That,in itself is not a problem.What I hear when going over different kinds of holes-especially at slow to moderate speeds where there is less road noise is another matter.Someone described it as sounding like tennis balls bouncing around in a box and its definitely not normal or like any other car I've driven.  The other day I had to drive for about a mile over a dirt road.If you or anyone else,especially a service technician were in the car with me and heard what I heard and tried to say that what you heard was acceptable or like Honda,Ford or anything else it would stretch the imagination even if you didn't look at the odometer and see that there were 2800 miles on the car.  Peoples's tolerances and sensitivity may vary but its seems very difficult to believe that every Sonata is the same when it comes to suspensions given that some never hear anything like what i described.
#380 of 414
Re: FYI [kaypea] by targettuning
Oct 27, 2009 (8:26 am)
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Replying to: kaypea (Oct 26, 2009 1:19 pm)

Yes, you are correct I do not currently own a Hyundai product (how you assumed that I don't know but nice guess) although in total our family has owned 4 (two Santa Fe's for me, an Elantra for my son and our daughter still owns her 2003 Elantra GT). In fact I intend to purchase a new redesigned 2011 Sonata but all that aside I am only trying to present a possible explaination why the majority of 2006-09 Sonata owners do not hear, or complain that they hear, anything abnormal. I would also have to subscribe to the idea that all Sonata are likely built equally well. The only deviance to that would be if an outside supplier/sub-contractor delivered a run of sub-standard or out of spec. parts (this has happened for several model years with Honda Civic shocks subject to early leakage). But how you could extrapolate what noise (type, or severity) a Ford/Honda/Nissan or anything else might or might not make over a given pothole as you drive over that hole in your Sonata is well beyond me. I still contend that the majority of complaints is attributable to consumer sensitivity and maybe fueled in part by posts here. After all there are those who after reading about all these suspension noises are influenced to hear something that didn't exist previously. An automotive hypochondriac so to speak. Finally, I don't absolutely positively say there is no noise...period, only that there may be more sensitivity to any noise now that this has become an issue.
#381 of 414
Re: FYI [targettuning] by gslav1
Oct 27, 2009 (10:41 am)
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Replying to: targettuning (Oct 26, 2009 6:56 am)

Hello The problem is not just noise from the struts, its ride quality and handling .Believe me if you had this problem you would immediately notice it !!
#382 of 414
Re: 2010 sonata suspension?? [steven39] by fragilemn
Oct 27, 2009 (10:59 am)
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Replying to: steven39 (Oct 24, 2009 5:03 pm)

Funny you should ask, I was just visiting another Hyundai forum site today:
 
http://www.hyundai-forums.com
 
and someone just posted there about their 2010 Sonata and he was complaining about the exact same thing, the "thunk", and he only has 1800km on it.
So according to the thread here at least that one guy got some satisfaction from Hyundai but appears they are still shipping crappy original equipment on the current model.
#383 of 414
Re: FYI [targettuning] by espo35
Oct 27, 2009 (12:37 pm)
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Replying to: targettuning (Oct 27, 2009 8:26 am)

But how you could extrapolate what noise (type, or severity) a Ford/Honda/Nissan or anything else might or might not make over a given pothole as you drive over that hole in your Sonata is well beyond me. I still contend that the majority of complaints is attributable to consumer sensitivity and maybe fueled in part by posts here. After all there are those who after reading about all these suspension noises are influenced to hear something that didn't exist previously. An automotive hypochondriac so to speak.
 
Agree.
#384 of 414
Re: FYI [targettuning] by kaypea
Oct 27, 2009 (12:42 pm)
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Replying to: targettuning (Oct 27, 2009 8:26 am)

Yes you are correct-that seems to be the most reasonable explanation-that some supplier is delivering substandard or out of spec parts.
 
 I'll tell you how I could extrapolate what a different model could make over a given road surface.When I drove home from when i picked up the car and got about 2 miles from where I live and the roads get a little funky here and there I noticed it immediately-that it made about 5 times the noise as my Honda Accord that I just traded in with 135,000 miles on it.The car I had before that?-Honda Accord sold with 150,000 miles on it.And I have driven the Accords over the same dirt road i mentioned previously-no comparison.Hondas tend to have noisy suspensions but,even with all those miles on them they never sounded like something was broken on like the Sonata does-that's a a big difference.Nor has any other car I've ever had.
 
 I didn't come on here to co miserate or reinforce that I have a problem.Why would anyone want to do that? I just had a lousy experience with a dealer.I'm just trying to find out the best appraoach to trying to find a fix.
 
 Tell you what-lets trade cars for a couple of weeks,then see how you feel about it.And its become an issue because Hyundai,so far has dropped the ball with this.
#385 of 414
I must be one of the lucky one's, no thunk/thump noise by LASHAWN
Oct 27, 2009 (1:38 pm)
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I consider myself lucky than, because I have yet to experience the so-called thunk noise from the suspension in my 06 Sonata LX. I've got over 63k miles on my car and aside from routine maintenance, has only been to the dealer for a failed mirror switch, horn and recall on brake switch. I still have my OEM tires and rear brakes on my car.

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