Wheel Bearings Worn at 57,000 Miles??! Warranty? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 20 (permalink) Old 01-07-2012, 03:43 PM Thread Starter
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Wheel Bearings Worn at 57,000 Miles??! Warranty?

Ok, I did the search thing and I'm not getting the answers I'm looking for. My 2008 LT Sedan is getting a "groan" which sounds like it's coming from the passenger side front wheel. It seems like when I turn right, the noise dissipates. I tried calling 3 GM dealers and all of them told me the service and repair shops are only open Monday through Friday. So I am a little irritated that these wheel bearings would start announcing their failure at around 57,000 miles. I would expect this to be covered under GM's 100,000 mile powertrain warranty. Is it not?
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post #2 of 20 (permalink) Old 01-07-2012, 04:15 PM
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A wheel bearing can last 20000 miles like it can last 200,000 miles but GM warranties them for 35000. A good pothole hit a year ago might be what started your bearing disintegration. Not that big of a job and if you purchase an aftermarket and bring it to your local grease monkey you should pull through under 150$.

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post #3 of 20 (permalink) Old 01-07-2012, 04:40 PM Thread Starter
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I have ABS, so the cost of a whole new hub would be more.

I did slide into a ditch last Winter. The lip on the rim on that side got bent, but Les Schwab was able to fix that. After I was pulled out of the ditch by a tow truck, I started to drive back home and there was a lot of shaking. Les Schwab hosed out a lot of mud from the wheel. So maybe that shaking from a horrible unbalanced wheel due to mud and gravel could have started the disintegration as well?

I've seen a video or two on the wheel hub replacement and some pictures. Doesn't look too hard. Only thing I don't like is jacking up my car and messing with brake system.
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post #4 of 20 (permalink) Old 01-07-2012, 05:22 PM
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post #5 of 20 (permalink) Old 01-07-2012, 06:14 PM Thread Starter
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Well that seems reasonable. I will give this a lot of thought and see if I want to tackle this myself or just have a repair shop do it.
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post #6 of 20 (permalink) Old 01-07-2012, 07:09 PM
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Quote:
Originally Posted by kcg795 View Post
I have ABS, so the cost of a whole new hub would be more.

I did slide into a ditch last Winter. The lip on the rim on that side got bent.
As I was saying, if you hit hard enough to bend the rim you hit hard enough to damage the bearing. You only need a little nick on the race and time takes care of the rest.

4 lugs or 5 ?

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post #7 of 20 (permalink) Old 01-07-2012, 07:34 PM Thread Starter
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Looks like it's a 5 lug. I checked in the trunk at the spare tire because I don't want to risk cracking the hub caps trying to remove them. It shows 5 lugs on the hub caps, but I can't tell if those "lugs" are real or part of the hubcap.
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post #8 of 20 (permalink) Old 01-08-2012, 10:26 AM
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It looks like you're on your way to addressing your wheel bearing already. The Powertrain limited warranty does cover wheel bearings, per a dealership diagnosis and evaluation to verify that the concern was caused by manufacture defect or workmanship, and I've included a full list of covered components. Hope it's helpful to you, and if I can be of any further assistance please let me know!

Sarah
GM Customer Service

Engine: Cylinder head, block, timing gears, timing
chain, timing cover, oil pump/oil pump housing,
OHC carriers, valve covers, oil pan, seals, gaskets,
turbocharger, supercharger and all internal lubricated
parts as well as manifolds, flywheel, water pump,
harmonic balancer and engine mount. Timing belts are
covered until the first scheduled maintenance interval.
Transmission/Transaxle/Transfer Case: Case,
all internal lubricated parts, torque converter,
transfer case, transmission/transaxle mounts, seals,
and gaskets.
Drive Systems: Final drive housing, all internal
lubricated parts, axle shafts and bearings, constant
velocity joints, axle housing, propeller shafts, universal
joints, wheel bearings, locking hubs, front differential
actuator, supports, front and rear hub bearings,
seals and gaskets.

Last edited by ChevyCustSvc; 01-08-2012 at 10:31 AM.
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post #9 of 20 (permalink) Old 01-08-2012, 11:07 AM Thread Starter
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Thank you! I will definitely be calling the dealership in town on Monday and see if I can possibly get it in there on Tuesday.
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post #10 of 20 (permalink) Old 01-08-2012, 05:34 PM
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