Horror story
I love Corvettes and have had a lot of them but my 2015 Z06 has been a total lemon. Bought in September 2015, it went into the shop in September 2017 for a month. They replaced the supercharger, flex plate and torque tube all of which were defective. It has now been in the shop since Nov. 27,2018. Brought in due to it stalling out and failing to restart intermittently. This time they have so far replaced the battery, starter motor, torque tube (again) and a section of the wiring harness. Now they have removed the engine because they found metal shavings in the oil. They are tearing it down and will undoubtedly have to replace the engine. It is totally sad that Chevrolet has let there so called quality control get to such horribly low levels!! You would think that when you spend over $90,000 for a car it would actually run!! Apparently Chevrolet doesn't share my opinion. I will NEVER buy another General Motors product!! There is NO quality control and customer service is NON EXISTANT!!
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I'm sorry for your plight, as I'm sure most are here. However, you have told us nothing about your intervening experiences with the car and little else, actually, to help us understand what is going on. But, in any event, all the best. :yesnod:
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Originally Posted by kself3567
(Post 1598706457)
I love Corvettes and have had a lot of them but my 2015 Z06 has been a total lemon. Bought in September 2015, it went into the shop in September 2017 for a month. They replaced the supercharger, flex plate and torque tube all of which were defective. It has now been in the shop since Nov. 27,2018. Brought in due to it stalling out and failing to restart intermittently. This time they have so far replaced the battery, starter motor, torque tube (again) and a section of the wiring harness. Now they have removed the engine because they found metal shavings in the oil. They are tearing it down and will undoubtedly have to replace the engine. It is totally sad that Chevrolet has let there so called quality control get to such horribly low levels!! You would think that when you spend over $90,000 for a car it would actually run!! Apparently Chevrolet doesn't share my opinion. I will NEVER buy another General Motors product!! There is NO quality control and customer service is NON EXISTANT!!
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The customer service side is dealer dependent but what you've experienced is just a small percentage of the total. Know that there are many thousands of these cars that have not experienced a single issue, so it isn't an issue of No Quality control, just a defect(s) with your particular vehicle. Get the dealer to buy it back and trade in on a new model.
If you think any of the luxury brands don't have the same issues, you are fooling yourself. Go peruse a McLaren forum for a bit and realize how much those cars cost.... |
I have owned 10 Corvettes, 2 used, 8 new and have never had a single issue/problem with any of them. My appraisal of GM's quality control would differ wildly from that of the OP here.
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Assuming your car is an A8, I am willing to bet that all of the issues and replacement parts after the initial flex plate replacement are the fault of the dealer. The slow starting, stalling and metal in the oil are likely all results of the torque tube not being installed correctly when it was put back together the first time. If the specific procedure for torquing the coupler on the front of the torque tube wasn't done perfectly, it will have insufficient crank shaft end play and cause the thrust bearing to get wiped out. As the thrust bearing wears, it keeps introducing metallic shavings into the oil, which start to wipe out the rest of the bearings, creating the stalling and hard start issue. If the mileage between failures was about 3k miles, that's even more likely as that's usually about the time it takes to completely wipe out the thrust bearing.
I am not sure how many dealers there are on the islands, but we've had two C7s come back from Hawaii with recent torque tube removals and both required an engine due to the incorrect install procedure done previously. |
I hear you can get a great deal on a Mustang right now. You should try it out.
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Originally Posted by fleming23
(Post 1598709026)
The customer service side is dealer dependent but what you've experienced is just a small percentage of the total. Know that there are many thousands of these cars that have not experienced a single issue, so it isn't an issue of No Quality control, just a defect(s) with your particular vehicle. Get the dealer to buy it back and trade in on a new model.
If you think any of the luxury brands don't have the same issues, you are fooling yourself. Go peruse a McLaren forum for a bit and realize how much those cars cost.... |
Originally Posted by RichieRichZ06
(Post 1598709901)
Assuming your car is an A8, I am willing to bet that all of the issues and replacement parts after the initial flex plate replacement are the fault of the dealer. The slow starting, stalling and metal in the oil are likely all results of the torque tube not being installed correctly when it was put back together the first time. If the specific procedure for torquing the coupler on the front of the torque tube wasn't done perfectly, it will have insufficient crank shaft end play and cause the thrust bearing to get wiped out. As the thrust bearing wears, it keeps introducing metallic shavings into the oil, which start to wipe out the rest of the bearings, creating the stalling and hard start issue. If the mileage between failures was about 3k miles, that's even more likely as that's usually about the time it takes to completely wipe out the thrust bearing.
I am not sure how many dealers there are on the islands, but we've had two C7s come back from Hawaii with recent torque tube removals and both required an engine due to the incorrect install procedure done previously. |
This isn't relevant to the OP's unfortunate problems he is experiencing (but from what he says, Chevy do seem to be trying to get it running as it should be)
but "as far as I know" from my 20yr old C5's history it has had zero break downs, several factory recalls, & just the usual fluids/filters replaced as well as brake pads & tires...............so not too bad for such an old girl! https://cimg6.ibsrv.net/gimg/www.cor...5dec3be9e9.jpg |
Originally Posted by PureJoy
(Post 1598718501)
This isn't relevant to the OP's unfortunate problems he is experiencing (but from what he says, Chevy do seem to be trying to get it running as it should be)
but "as far as I know" from my 20yr old C5's history it has had zero break downs, several factory recalls, & just the usual fluids/filters replaced as well as brake pads & tires...............so not too bad for such an old girl! https://cimg6.ibsrv.net/gimg/www.cor...5dec3be9e9.jpg . |
Originally Posted by ss2z06
(Post 1598718432)
That makes a lot of sense. Out of curiosity can you post the proper torque procedure? ________________________________________ ________________________________________ _____________________________ Note: The following steps MUST be performed in order to provide proper alignment of the propeller shaft hub, the propeller input shaft and the propeller input shaft front bearing.
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Originally Posted by RichieRichZ06
(Post 1598709901)
Assuming your car is an A8, I am willing to bet that all of the issues and replacement parts after the initial flex plate replacement are the fault of the dealer. The slow starting, stalling and metal in the oil are likely all results of the torque tube not being installed correctly when it was put back together the first time. If the specific procedure for torquing the coupler on the front of the torque tube wasn't done perfectly, it will have insufficient crank shaft end play and cause the thrust bearing to get wiped out. As the thrust bearing wears, it keeps introducing metallic shavings into the oil, which start to wipe out the rest of the bearings, creating the stalling and hard start issue. If the mileage between failures was about 3k miles, that's even more likely as that's usually about the time it takes to completely wipe out the thrust bearing.
I am not sure how many dealers there are on the islands, but we've had two C7s come back from Hawaii with recent torque tube removals and both required an engine due to the incorrect install procedure done previously. |
Originally Posted by RichieRichZ06
(Post 1598729578)
Sure. There are a lot of steps prior to this copy and paste, but this is the part that needs to be followed perfectly. If it's not done correctly and the technician doesn't re-measure the crankshaft end play, it is VERY likely it will need main bearing or engine replacement in less than 4k miles.
________________________________________ ________________________________________ _____________________________ Note: The following steps MUST be performed in order to provide proper alignment of the propeller shaft hub, the propeller input shaft and the propeller input shaft front bearing.
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Sucks you are having so many problems with your car. It surely can leave a sour taste in your mouth. Hope GM can come up with a solution and get your car repaired and back on the road.
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Originally Posted by Vetteman Jack
(Post 1598747980)
Sucks you are having so many problems with your car. It surely can leave a sour taste in your mouth. Hope GM can come up with a solution and get your car repaired and back on the road.
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Originally Posted by RichieRichZ06
(Post 1598709901)
Assuming your car is an A8, I am willing to bet that all of the issues and replacement parts after the initial flex plate replacement are the fault of the dealer. The slow starting, stalling and metal in the oil are likely all results of the torque tube not being installed correctly when it was put back together the first time. If the specific procedure for torquing the coupler on the front of the torque tube wasn't done perfectly, it will have insufficient crank shaft end play and cause the thrust bearing to get wiped out. As the thrust bearing wears, it keeps introducing metallic shavings into the oil, which start to wipe out the rest of the bearings, creating the stalling and hard start issue. If the mileage between failures was about 3k miles, that's even more likely as that's usually about the time it takes to completely wipe out the thrust bearing.
I am not sure how many dealers there are on the islands, but we've had two C7s come back from Hawaii with recent torque tube removals and both required an engine due to the incorrect install procedure done previously. |
Originally Posted by RichieRichZ06
(Post 1598729578)
Sure. There are a lot of steps prior to this copy and paste, but this is the part that needs to be followed perfectly. If it's not done correctly and the technician doesn't re-measure the crankshaft end play, it is VERY likely it will need main bearing or engine replacement in less than 4k miles.
________________________________________ ________________________________________ _____________________________ Note: The following steps MUST be performed in order to provide proper alignment of the propeller shaft hub, the propeller input shaft and the propeller input shaft front bearing.
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Originally Posted by jimbob8915
(Post 1607725881)
So you pry the crankshaft back and set the clamp bolt or do you try to find a happy medium in the crank play and set the clamp bolt? I am doing a converter change this weekend.
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I agree with RichyRich.
Dealer messed up on TT reinstall causing all the following problems. But the dealer will never admit it. FYI: My best friend for over 30 years, shop supervisor, very large Ford dealership, was always over rode by management when some mechanic screwed up. Customer always paid, he hated the dealership system of doing things like this but could never win. You'd be horrified at what dealership management was always trying to pull. Screw you, pay me. And they were proud of that mato. Thats why I never took any of my cars to a dealership for over 50 years . |
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