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Hyundai Sonata Brakes

153 messages,  Last post on Nov 14, 2009 at 2:45 PM

You are in the Hyundai Sonata Forum. Your Hosts are pat & karens

What is this discussion about? Hyundai Sonata, Brakes, Sedan


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#111 of 153
Sound while idling > 40 MPH by sudha22
Oct 17, 2009 (6:08 am)
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Wondering whether anyone have come aross this issue. When I drive for 10 minutes and then idle or accelerate > 40 MPH, I hear a squeaky sound. This sound stops once I apply the break to slow down. Took it to the dealer and he said that the brake pad may have worn out because of over heating applying brakes at high speed. It was unbelievable. Then I asked him to just inspect. He took a look and said that he took care of it and if the sound persists, he is going to apply some kind of silicone Gel for $200. I was in a hurry and was optimistic that he may have fixed the issue. However, it was not. Still running with it. Planning to take it to a local repair shop as I don't trust the dealership.. Do you guys have any suggestion? Please help!
#112 of 153
Re: Sound while idling > 40 MPH [sudha22] by ayeu
Oct 18, 2009 (7:23 am)
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Replying to: sudha22 (Oct 17, 2009 6:08 am)

This sounds exactly like my problem. If you read through this series of comments, you'll see that you and I are not alone. Most likely your rear pads are heating up because they've seized in place and will need to be replaced. They will use a heat resistant anti-corrosive lubricant that may have to be reapplied annually. It's a Sonata problem typical in climates where salt is used. Are you in the north somewhere?
#113 of 153
Re: Sound while idling > 40 MPH [sudha22] by dave09se
Oct 18, 2009 (8:38 am)
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Replying to: sudha22 (Oct 17, 2009 6:08 am)

Rear disc brake trouble is common on alot of vehicles especially in areas where road salt is used if your are mechanically inclined most of the time all it takes is to clean and lubricate parts when ever you replace pads. I think they should have classes on general auto repair that people could take so they could learn how simple most general maint. is and how bad they take advantage of people that do not know.
#114 of 153
Re: Sound while idling > 40 MPH [dave09se] by sudha22
Oct 18, 2009 (7:03 pm)
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Replying to: dave09se (Oct 18, 2009 8:38 am)

Thanks for responding..
I guess Hyundai did not consider testing in places where it would snow. I am from Michigan and hence it is true that we have 3-4 months of snow.
Reg my scenario, should I just change the pads through a local repair shop and ask him to lubricate it.. Please suggest.
Is it OK to drive until then or am I risking the rotor or any other component? Your feedback is appreciated..
#115 of 153
Re: Sound while idling > 40 MPH [sudha22] by dave09se
Oct 19, 2009 (10:50 am)
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Replying to: sudha22 (Oct 18, 2009 7:03 pm)

I cant diagnose your problem without hearing it or seeing it but I can say this if your pads are rubbing your rotors they will eventually wear the pads out and ruin the rotors, take it someone you trust and have them fix it right for you, dont let the dealer charge you for some crap you dont need.
#116 of 153
Re: Sound while idling > 40 MPH [dave09se] by sudha22
Oct 22, 2009 (8:22 am)
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Replying to: dave09se (Oct 19, 2009 10:50 am)

Thanks again.. I took it to a trusted repair shop. He took a look and said that nothing is wrong. He was not able to reproduce the problem. He applied some lubricants. He did not capture the steps to reproduce the problem correctly. Again, I left my car with him today. I insisted that he test drive with me. He did and was happy that he acknowledged the problem. He put his head out while driving and he felt that the sound was coming in the front. He is again taking a look. I am having my fingers crossed now. I am little frustrated with all the repair guys of not paying attention to the fine details that we provide. Unnecessary waste of time. Now I am waiting on him to get back.. Having my fingers crossed..
#117 of 153
Re: Sound while idling > 40 MPH [sudha22] by ayeu
Oct 22, 2009 (6:29 pm)
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Replying to: sudha22 (Oct 22, 2009 8:22 am)

Not that this belongs in the brake discussion, but I just want to vent. Now my lights don't turn off automatically as they're supposed to. Of course, I'm 4,000 miles over the bumper to bumper warranty. :{
#118 of 153
Re: Sound while idling > 40 MPH [sudha22] by sudha22
Oct 23, 2009 (7:18 am)
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Replying to: sudha22 (Oct 22, 2009 8:22 am)

Interestingly the repair personnel thinks that brake is not the issue. He thinks that the seal for the front wheel bearing may be heating up which is causing the squeaking sound. He said that he had sprayed some oil. He said if the issue is fixed then it would be temporary and that the sound would come back once the oil dries out. He said that it is covered by warranty and I should take it to the dealer.
 
It has started to rain since yesterday and I am unable to hear the sound. I just wanted the rain to stop before I can decide whether the repair shop fix works for sure or not.
#119 of 153
Re: Sound while idling > 40 MPH [ayeu] by big_mike1
Oct 29, 2009 (8:37 pm)
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Replying to: ayeu (Oct 22, 2009 6:29 pm)

I have the issue with headlights not turning off also. Seems like a really retarded thing to have the car waste a day at the dealer (thankfully, I'm still under warranty, just passing 30k miles), but I guess I'll have to.
#120 of 153
BRAKE WARNING TO HYUNDAI OWNERS (ESP. IF YOU HAVE A SONATA) by jessc
Oct 30, 2009 (6:55 am)
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I have an 07 Sonata, bought new from the dealer 2.5 years ago. I've always taken it to Hyundai dealers only and on time for routine maintenance. The rear brake pads were replaced in July 08. In February 09, my car had the 30K mile service done (it was actually done at 32K miles because they said with my oil change timing I could wait until then), at which time the front brakes were measured at 60% remaining and rear had 90% remaining. Fast forward to September/October and less than 7K miles later (mostly highway driving by the way, involving much less braking than city driving), and the car was making an awful noise so I took it into the dealership ASAP where I live now in MA and get this --- the front was measuring at 25-30% remaining and the rear was as follows -- ZERO% remaining on one rear side and the other side had 70% pad remaining but that is because it was IMMOBILE in the caliper... in other words, it was not functioning causing the other rear side to wear down to metal-on-metal and wearing the front pads down too. That is frightening that I basically did not have any properly functioning rear brakes for a significant period of time unbeknownst to me!!! Thank god nothing bad happened and the only thing was damage to the car. The rear brakes and rotors were, needless to say, totally destroyed and had to be replaced. This is the part you should be warned about and the reason that I am posting this message--
The dealership that I bought the car from in Pittsburgh said that Hyundai corporation is fully aware that there are two major problems with its brake systems (especially including the Sonatas) 1) like in my case, where the brakes become immobile in the caliper and do not work or 2) the pads stick to the rotors and don't release and wear down to nothing that way. The dealer said that Hyundai refuses to issue a recall or even a TSB bulletin on the issue, instead they have some crappy "goodwill unofficial warranty" that if this happens to your car in the first 2 years or 24K miles they will fix the problem for free. Can you say hush money for not reporting the problem? My car is only 2.5 years old, and the Pittsburgh dealership was upset for me about this, so they contacted their Hyundai rep who is trying to contact the rep here in MA to take care of the issue for me. It cost me $500, hopefully I will get reimbursed. I reported this problem online to the NHTSA, and if this problem has happened to you also you should report it because the more reports they get, the more likely they are to do something about it! It is just plain frightening to me that the dealers admit that Hyundai corporation knows about these brake problems, that they happen often, and they aren't doing anything about it. Regardless of a recall etc., they should at least have the decency and sense of responsibility to tell us car owners that this problem is out there so that we can be proactive and get out brakes looked at every so often to catch things while the pads can still be replaced and avoid having to pay for all new pads and new rotors. The dealership here in MA thinks that the reason they aren't doing a recall or TSB is because this might be a regional thing linked to areas that get a lot of snow (calcium chloride on the road). Regardless, Hyundai should be telling us consumers who live in these areas to be vigilant about our brake systems!! The dealership here implemented a service that they now offer to check your brakes and calipers every X-thousand of miles. Hyundai should be telling all the dealerships to do this at the very least. BE WARNED AND VIGILANT ABOUT CHECKING YOUR BRAKES!

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