Help with LS3 issue
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Joined: Nov 2009
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From: Buford GA
Help with LS3 issue
I am at a loss. I bought a new 2012 Centennial Grand Sport.... It has been in the shop 3 times within my first month owning it! (side note: the dealership has been terrific) i have an abnormal squealing at first start up. It lasts about 5 minutes. At first it was a water pump leaking. So they replaced it, then it was still there. So the second time they replaced the belts and after a few days it returned. The last time they replaced the the main pulley and belts. It went away for a few days and returned. I am at a loss... I went back to dealer and we started up 3 other new vettes and none of them had same noise. Again the dealer and service manager has been excellent (Actually best dealer experience I have ever received, ever), so I know they are trying to help but what can I do? Have anyone else have or had a similar experience? I love the options and the Centennial edition.... But lost all confidence that this one has poor build quality! Love to hear any feed back........ I did double post in general discussion as well.
Thank you
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Thank you
Sent from my SPH-D710 using Tapatalk
Racer
Joined: Dec 2010
Posts: 418
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From: South Central Kansas
I would remove all the belts and start it up to see if it squeals. If it does not squeal then it is something with the belts, tensioner, crankshaft balancer, alternator, P/S pump, water pump or a/c compressor. If it squeals with the belts off then it maybe something in the valve train / timing chain (backed out bolt under the timing cover), drive shaft torque tube or elsewhere. My guess is that the squeal will go away when you start it with the belts off and it's an issue with on of the accessory bearings, a/c clutch and or bearing or a belt pulley is out of alignment and perhaps not properly tightened. Could also be that the crankshaft balancer / damper is defective. I have been wrong before though. This should be fairly easy for the dealership to diagnose and repair.
Bob
Bob
Last edited by 1fastbob; Feb 19, 2012 at 09:44 AM.
Team Owner
Joined: Jun 2005
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From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
that would be an interesting way to test for the noise by the above method. if that doesn't work, I'd hope the tech at the dealer contacted GM's tech center for ideas. otherwise, it's looking like a full replacement car.
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Joined: Nov 2009
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From: Buford GA
Wow.. all great ideas. The service manager said he has contact the regional engineer/rep. I was told they would contact me this week. I am going to ask if they are willing to test this theory. If not, does anyone know what the criteria of a replacement car? Are they required to get same options and edition?
Melting Slicks
Joined: Mar 2011
Posts: 2,708
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From: Arkansas
For your reading pleasure:
4-90-406 Failure to make required repairs.
(a)
(1) After three (3) attempts have been made to repair the same nonconformity that substantially impairs the motor vehicle, or after one (1) attempt to repair a nonconformity that is likely to cause death or serious bodily injury, the consumer shall give written notification, by certified or registered mail, to the manufacturer of the need to repair the nonconformity in order to allow the manufacturer a final attempt to cure the nonconformity.
(2) The manufacturer shall, within ten (10) days after receipt of the notification, notify and provide the consumer with the opportunity to have the vehicle repaired at a reasonably accessible repair facility, and, after delivery of the vehicle to the designated repair facility by the consumer, the manufacturer shall, within ten (10) days, conform the motor vehicle to the warranty.
(3) If the manufacturer fails to notify and provide the consumer with the opportunity to have the vehicle repaired at a reasonably accessible repair facility or fails to perform the repairs within the time periods prescribed in this subsection, the requirement that the manufacturer be given a final attempt to cure the nonconformity does not apply and a nonrebuttable presumption of a reasonable number of attempts to repair arises.
(b)
(1)
(A) If the manufacturer, its agent, or authorized dealer has not conformed the motor vehicle to the warranty by repairing or correcting one (1) or more nonconformities that substantially impair the motor vehicle after a reasonable number of attempts, the manufacturer, within forty (40) days, shall:
(i) At the time of its receipt of payment of a reasonable offset for use by the consumer, replace the motor vehicle with a replacement motor vehicle acceptable to the consumer; or
(ii) Repurchase the motor vehicle from the consumer or lessor and refund to the consumer or lessor the full purchase price or lease price, less a reasonable offset for use and less a reasonable offset for physical damage sustained to the vehicle while under the ownership of the consumer.
(B) The replacement or refund shall include payment of all collateral and reasonably incurred incidental charges.
(2)
(A) The consumer shall have an unconditional right to choose a refund rather than a replacement.
(B) At the time of such refund or replacement, the consumer, lien holder, or lessor shall furnish to the manufacturer clear title to and possession of the motor vehicle.
(3) The amount of reasonable offset for use by the consumer shall be determined by multiplying the actual price of the new motor vehicle paid or payable by the consumer, including any charges for transportation and manufacturer-installed or agent-installed options, by a fraction having as its denominator one hundred twenty thousand (120,000) and having as its numerator the number of miles traveled by the new motor vehicle prior to the time the buyer first delivered the vehicle to the manufacturer, its agent, or authorized dealer for correction of the problem that gave rise to the nonconformity.
