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2008 Cadillac CTS

2757 messages,  Last post on Oct 09, 2009 at 8:13 PM

You are in the Cadillac CTS/CTS-V Forum. Your Hosts are pat & karens

What is this discussion about? Cadillac CTS-V, Cadillac CTS, Sedan


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#2053 of 2757
Re: Bad Caddy [rvoth] by 150mphclub
Feb 01, 2008 (6:04 am)
Reply

Replying to: rvoth (Jan 31, 2008 4:31 pm)

"around 30-35% are defective"
 
Ridiculous assertion. No manufacturer of any product with a defect rate like that could survive in today's competitive environment.
#2054 of 2757
It's All in How. . . by cdnpinhead
Feb 01, 2008 (6:40 am)
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casting "defects" are defined.
 
All castings have defects, but only a very few slip through the inspection & classification processes meant to eliminate the ones that will actually fail in service. It's not too far-fetched to posit that 30-35% of automotive castings have surface indications of one size or another. So long as the defects aren't linear & beyond the length that experience has shown could allow them to grow into something significant, it's no harm/no foul.
 
Something like what the meaning of "is" is. There are defects and then there are rejectable defects.
#2055 of 2757
Re: Bad Caddy [150mphclub] by adnanz
Feb 01, 2008 (6:47 am)
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Replying to: 150mphclub (Feb 01, 2008 6:04 am)

I highly doubt 1/3 of engines being rolled off the assembly line are defective. That is a gross exaggeration. With every manufacturer, there are manufacturing issues, some more, some less. I agree, no way a company can survive by selling 1/3 crappy engines. I'm sure the number of bad engines are more like 1%, if not less. Unless the engines are flawed, which I doubt.
#2057 of 2757
Re: Bad Caddy [rcantwell] by rcantwell
Feb 01, 2008 (12:41 pm)
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Replying to: rcantwell (Jan 30, 2008 4:58 pm)

Engine update Friday Feb 1st. Basically I still don't know anything.They have the engine torn apart and can see where the dye/water is getting in one of the cylinders. Problem is they don't know how it is getting there. No visible cracks in the head, block, or head gasket. They have the head at the machine shop now checking it out, but the service manager told me he doubts they will find anything. The dye should have shown a crack if there was one. His best guess is that the block casting is porus letting the water in that way. He is working with Cadillac technical services, trying to get authorization for a new engine, what I wanted in the first place. It's been in the shop for 8 days this time and he admitted Caddy probably wouldn't make a decision till Monday at the earliest. That means with shipping time for hopefuly the new engine, and disassembly, reassembly and installation, I am looking at it being in the shop for another week to week and a half. That probably puts me up to about 26 days or so in the shop since the first of the year. Oh, I forgot!! Caddy offered me a free oil change. At least this time the rental isn't a Cobalt, the Grand Prix while no Caddy is certainly much better than a Cobalt. With rental car fees, all the problems the first time in the shop, and now the engine, I can take solace that GM hasn't made a penny on this vehicle. Too bad they just don't get me a new one, or money back, and take this lemon to Detroit to study how NOT to build a car.
#2058 of 2757
Re: Bad Caddy [tntmyth] by 150mphclub
Feb 01, 2008 (5:10 pm)
Reply

Replying to: tntmyth (Jan 29, 2008 8:20 pm)

"The first time, Lexus gave him a new car. The second time, they gave him his money back and he went and bought an Acura TL. That's the legendary Lexus customer service and it's why Lexus has a loyal customer base."
 
Apparently not too loyal, since he went out and bought an Acura.
#2059 of 2757
Re: Bad Caddy [150mphclub] by tntmyth
Feb 01, 2008 (7:06 pm)
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Replying to: 150mphclub (Feb 01, 2008 5:10 pm)

Lexus did not want to sell him another car after declaring two lemons. It was like, take your refund and go away!
#2060 of 2757
Re: It's All in How. . . [cdnpinhead] by rvoth
Feb 01, 2008 (9:28 pm)
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Replying to: cdnpinhead (Feb 01, 2008 6:40 am)

Alot of these castings that have defects that are not visible with the human eye. There is a series of NDT non destructive tests that can be done on these parts to find fatal cracks and imperfections. Different types of tests are Ultrasonic, Magnetic Particle and Liquid Penetrant which gm favors to find the cracks/leaks after a problem crops up. GM uses a liquid penetrant with a flourescent light to excite the particles which shows where exactly the leak is.
 
  If GM were to do these tests on the engines before assembly, the price of your car would GO UP in price because these procedures are very time and money consuming. Usually these type of tests are done on race car engines and Aircraft parts ,sheet metal and engine turbine components . Parts like this if they fail will have disastrous results.
   
 So some types of defects are OK and some reject able defects will get by GM . They can't and won't do these NDT's tests as they are too costly and time consuming so we as consumers get a mass produced product.
#2061 of 2757
Re: Bad Caddy [tntmyth] by kplacer
Feb 02, 2008 (4:45 am)
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Replying to: tntmyth (Feb 01, 2008 7:06 pm)

Seems there is a bit of a pattern with this customer.
#2062 of 2757
Re: It's All in How. . . [rvoth] by cdnpinhead
Feb 02, 2008 (8:03 am)
Reply

Replying to: rvoth (Feb 01, 2008 9:28 pm)

Thanks for the education.
 
What is your source for stating that GM does nothing beyond visual inspection of their castings?
 
I've only been working aerospace castings for 27 years, so there's always more to learn.

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