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2009-2010 Hyundai Sonata

1006 messages,  Last post on Nov 24, 2009 at 6:17 AM

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#696 of 1006 Re: Noise when going over bumps [gmctruck] by jm1996 Nov 22, 2008 (4:43 pm)
Replying to: gmctruck (Nov 22, 2008 6:26 am) I also noticed this and was prepared to take it in, but the noise seems to have reduced greatly in the cold weather. Could it be AC related? Replies to this message: gmctruck (Nov 22, 2008 9:09 pm)
#697 of 1006 Re: Noise when going over bumps [jm1996] by gmctruck Nov 22, 2008 (9:09 pm)
Replying to: jm1996 (Nov 22, 2008 4:43 pm) I don't think it is related to the AC. I think it is more related to expansion and contraction of the materials as the temperature changes and driving on rough pavement. I've noticed the noise less now that the car is a year old, but I still hear it when the weather is really cold.
#698 of 1006 by peridoc Nov 22, 2008 (9:26 pm)
Have you tried tracking down the noises with any service people, or is it just not worth the effort? I also have a rattle coming from my back deck that is caused by the subwoofer. They have looked into that before but have not completely gotten it out. I think that is much easier to fix and track than the noise coming from the dash. I have not been able to pinpoint where it is, but you are right...it sounds like it is coming from up near where the dash and windshield meet. I really wish there was a fix for it as it has gotten worse for me in the colder weather. It was not there before October or so. Replies to this message: gmctruck (Nov 22, 2008 10:19 pm)
#699 of 1006 Re: Noise when going over bumps [gmctruck] by ponggod Nov 22, 2008 (9:28 pm)
Replying to: gmctruck (Nov 22, 2008 6:26 am) I've just recently begun noticing this too in the '09 Sonata I just bought less than two months ago. It's only occasional and not really severe, but it's got me wondering if it's something that's likely to get worse over time. It's tolerable right now, but if it gets any worse, it's really going to affect my overall impression of the car.
#700 of 1006 Re: [peridoc] by gmctruck Nov 22, 2008 (10:19 pm)
Replying to: peridoc (Nov 22, 2008 9:26 pm) I haven't taken it to the dealer because it isn't severe enough to warrant tearing out the dash, which is what I think will be required to fix the problem for good. Hyundai really needs to address this on the newer cars and I'm surprised to hear the '09's have it as well.   Another thing I discovered is the windshield glass isn't smooth. You can't see it visually, but I can feel a ripple in the glass with my hand and found it while cleaning the windshield. These things do affect my overall impression of the car.
#701 of 1006 Re: Noise when going over bumps [gmctruck] by NewKah09 Nov 23, 2008 (2:08 pm)
Replying to: gmctruck (Nov 22, 2008 6:26 am) My '09 Sonata GLS does something similar, the windshield makes a crackling sound when going over any road irregularity other than the slightest bump. Exactly like the sound the windshield makes when heavy rain hits it. Replies to this message: 3rdjersey (Nov 23, 2008 5:32 pm) stephen987 (Nov 24, 2008 3:30 am) ctc1 (Nov 29, 2008 3:39 pm)
#702 of 1006 Re: Noise when going over bumps [NewKah09] by 3rdjersey Nov 23, 2008 (5:32 pm)
Replying to: NewKah09 (Nov 23, 2008 2:08 pm) My 08 Sonata had the same noise at the base of the windshield. It only did it when the outside temperature was below 48 degrees. I got a can of silicone spray and sprayed it into the opening between the dash and windshield. I noticed a vast improvement almost immediately and now one year later the nosie is completely gone.
#703 of 1006 Re: Noise when going over bumps [NewKah09] by stephen987 Nov 24, 2008 (3:30 am)
Replying to: NewKah09 (Nov 23, 2008 2:08 pm) For what it's worth, my Accord makes a very similar noise under those circumstances. Then again, it's got 78k miles on it.
#704 of 1006 Re: Noise when going over bumps [NewKah09] by ctc1 Nov 29, 2008 (3:39 pm)
Replying to: NewKah09 (Nov 23, 2008 2:08 pm) I had 2 Accords that made the same sound. Was so bad in my 86 I had to trade it in because it was driving me nuts. Spent a lot of time and money trying to fix but never found the cause!
#705 of 1006 Suspension noise--a "feature"?? by backy Nov 29, 2008 (4:42 pm)
CR has a review of the 2009 Sonata in its January issue. Once again, it notes that "Suspension noise is pronounced over bumps." CR has made similar comments on reviews of earlier Sonatas. So I am wondering... is the suspension noise some owners are complaining about a "feature" (or more accurately a characteristic) of the car, vs. a defect? There were some noises on earlier Sonatas that were due to faulty suspension parts, and Hyundai replaced those on many cars. But that seemed to be more than the usual noise.   FWIW, I've driven about 15 different 2006-2009 Sonatas over the years, and I've never heard what I considered to be "pronounced" suspension noise. What I heard was a tire thump over some bumps, with the worst noise over tar strips on the highway. I am wondering if CR and others are characterizing that kind of noise as "suspension" noise vs. tire noise?   BTW, the Sonata was the top-rated mid-sized car in the test group, which included the 2009 Malibu (with 6-speed automatic on the I4, also the hybrid version), the all-new Mazda6, and the 2009 Aura (I4). CR also tested the Jetta TDI, which was ranked very high, just behind the Altima I4 in the $20-25k class. The Sonata GLS I4 now ranks 7th overall in that class, behind the Altima, Jetta TDI, Prius Touring, Accord LX-P, Optima EX I4 (pre-2009), and tied with the Camry LE. The Sonata Limited V6 ranks 6th in the $25-30k class, behind Altima 3.5 SE, Accord EX-L, Camry XLE, Passat 2.0T, and Camry Hybrid. The Sonata and Malibu (I4) were the only recommended cars in the test group--the others didn't have enough of a reliability history (which is odd since the Aura debuted before the Malibu). Replies to this message: gmctruck (Nov 30, 2008 7:46 pm) jlindh (Dec 11, 2008 3:32 pm) backy (Dec 11, 2008 7:29 pm)

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