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Sedans Hyundai Sonata 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
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Replying to: mmmmoto (Nov 10, 2009 10:32 am) To recap: I had the rear breaks redone at 36K while still in warranty because the Hyundai dealer said the caliper was stuck. Now, at 55K, when I got my oil changed and breaks checked at Mr. Tire last Saturday afternoon, they told me that the caliper was stuck, and said they "popped" the caliper out of the stuck position so that I could drive it to the Hyundai dealership without wearing the rotor down too much more--I wanted to see if the break repair would be covered again by warranty since I had them worked on only 15 months ago. At the Hyundai dealership yesterday, they found the same problem as dave09se--heavy wear on the outside of the driver's side rear pad to the point that it was cutting into my rotor, while the inside pad on the driver's side rear break was still fine. Perhaps not surprisingly, they observed the same imbalance of wear on pads on the passenger's side rear break, except that it wasn't as bad. The mechanic said I still had 25% left on my right break--not sure if that was the inside or outside, but both driver's side and passenger's side were wearing unevenly!!!!!! Roberto, the manager, said there was a break part that had rusted (supposedly the problem wasn't the caliper) and that this part was inhibiting the ability of the pads to move into breaking position simultaneously. So he admitted that the pressure on both sides was so uneven that it was making the breaks don't wear evenly. The manager said he couldn't get the caliper to malfunction again, and I really had to have my car, so we "split the cost" of a rear break job and it's hopefully working well again. He offered me a free oil change after another 3K at which time he wants to check the caliper again to see if it was faulty. BUT, now I'm beginning to think that perhaps it isn't necessarily a caliper problem, and was perhaps misdiagnosed by both Hyundai when I had my breaks done at 36K, and also at Mr. Tire. The point is, the break pads should not be wearing unevenly on each wheel, correct???? The inside pad on each wheel should wear in sync with the outside on the same wheel. Otherwise, you aren't going to get the breaking power you should have, AND you're going to end up replacing breaks and rotors more often than you should have to. I believe Hyundai may be getting its break parts from someone who is not making them with good enough materials to make them last long enough for natural break wear to occur. They need to check the specs on the manufacturing. Does this make any sense? I'm just a girl who knows very little about cars, but I can reason enough to know that if I have to change my breaks every 20K simply because one pad has gone bad, I'm not getting my money's worth. |
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Replying to: dave09se (Nov 10, 2009 11:37 am)
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Replying to: sudha22 (Nov 11, 2009 10:28 am) http://www.hyundai-forums.com/index.php?s=adc60abf930925258ed0866c51979af7&&act=- attach&type=post&id=10408 |
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You do know that that cars have "brakes", workers have "breaks" at work during their day. Just an FYI bud! The Sandman  
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Replying to: sandman_6472 (Nov 12, 2009 3:13 pm) |
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| Per the earlier message from targettuning, my Sonata was brand new when I bought it back in November 2006. I am very particular about my car and have always been told by mechanics that I am extremely easy on my breaks. To have two serious problems with breaks by 55K miles--one diagnosed at 36K as a stuck caliper, and this time as a problem with corroded pins in the break systems that won't allow the pads to move properly (the Hyundai manager's words) and causing uneven wear on BOTH rear wheels--this is ridiculous, and is certainly not because I've abused my vehicle in any way or not taken care of it properly. | |
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I see much traffic here regarding Hyundai rear brakes. Some of the problems seem premature at less than 20K miles while others (st jude) are diagnosed at relatively high mileage. Yes, 55K and 36K miles are relatively high mileages for brakes these days and within the range where brake problems leave the realm of "premature" and into the area of "normal" . Brakes do not and will not last the life of the car and to expect brakes to last much beyond 40 or 50K miles is setting yourself up for disappointment and in st judes case not "ridiculous" at all. No, you have not abused your vehicle BUT you HAVE used it. Apparently there could be a construction material problem on the calipers. Since, as I have pointed out time and time again, almost all calipers (from other manufacturers) are designed the same..there just isn't a lot of creative latitude when designing these because they all HAVE to perform the same function within similar physical confines. With this in mind it can only be the interaction of various materials when salt or slush splash is introduced causing this so-calling sticking of a sliding surface or pin. Another thing I would comment on is the big issue of one pad wearing more than the pad on the opposite side of the disc (on the same wheel). Based on my experience with another brand and year car (1995 Dodge Stratus) this isn't exactly abnormal. I experienced just this with the last pad replacement only a couple of months ago. In no way are my front brakes malfunctioning on that car but one pad on each side had significantly less friction material left than the other. I do not know what the Hyundai problem is except to speculate on the disimilarity of metals (that react negatively to each other) used in caliper construction but if this is the case it should be relatively easy to engineer the problem away...and I am sure Hyundai is doing or has done just that.
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Replying to: targettuning (Nov 13, 2009 6:35 am)
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Replying to: bernardmarx (Nov 13, 2009 7:46 am) So what's your point??? A friend of mine has a 2006 Acura TSX. At 43K miles, his front pads were completely worn (less than 5% pad material remaining), and his front rotors were warped noticeably. He drives about 50/50 city/freeway, and his driving style is moderate; he doesn't abuse the car in any way. I very much doubt the Accord's brake system components are of higher-quality or better design than the more expensive, and sportier, TSX. Is his car's braking system defective? Absolutely not. The front brakes wore out at a typical mileage for his driving style and his mix of city/freeway driving.
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Replying to: aqua33v6 (Nov 13, 2009 10:03 am) |
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