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Cadillac STS Forum - 2005 through 2012 Discussion, STS buying advice in Past Cadillac Vehicle Discussion; Great! That's one down. Over on the CTS forum there are links to a solution to the oil foaming issue. ...
  1. #31
    EChas3's Avatar
    EChas3 is offline Cadillac Owners Master
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    Re: STS buying advice

    Great! That's one down.

    Over on the CTS forum there are links to a solution to the oil foaming issue. Some 3.6 owners have reported catestrophic oil loss & ring failure. I believe controlling this and checking the level often heads-off any trouble.

    Cam and related sensor issues aren't really very common given the number of GM 3.6 V6's produced.

  2. #32
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
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    Quote Originally Posted by VivienM
    Okay, I went back to the dealer. Confirmed that it shows the 11340 timing chain warranty on the computer for another 4 years and until 193,000km. Given that, the 3.6L shouldn't be too risky?

    (I believe the timing chains fail nicely, too? i.e. you get the P0008 code, and you can get it fixed, rather than having a catastrophic failure at 120km/h on the highway?)
    Or they could snap while driving 70mph and your entire engine is toast, its happened...
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  3. #33
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
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    Buying a 3.6 is like buying a 96-99 northstar. Sure you can get lucky but odds are you just invested in a mechanics wet dream and your worst nightmare.

  4. #34
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    orange57 is offline Cadillac Owners Fanatic
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    Quote Originally Posted by VivienM View Post


    2) V8 requires premium gas, which is another cost...
    Doesn't require it unless it pings. I find it funny when people make this comment. It is a Caddi after all, a high end luxury automobile, not an economic bucket. Where I am premium is about 20 cents more per gallon than regular. For 15 gallons that is $3 a tank, fill up twice a month or so, so about an extra $72 a year for premium. Doesn't seem to outrageous to me.

  5. #35
    VivienM is offline Cadillac Owners Member
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    Re: STS buying advice

    Quote Originally Posted by orange57 View Post
    Doesn't require it unless it pings. I find it funny when people make this comment. It is a Caddi after all, a high end luxury automobile, not an economic bucket. Where I am premium is about 20 cents more per gallon than regular. For 15 gallons that is $3 a tank, fill up twice a month or so, so about an extra $72 a year for premium. Doesn't seem to outrageous to me.
    Up here, it's about 12 cents per L more... so... about $.50 per US gallon. So, at $1.35/L for premium, say, you'd be talking... $5.11/gal. Not European pricing, but close to $2/gal more than what you're paying?

    In any event, the depreciation on these cars is such that they're attracting a very different crowd than the people who could afford to buy them new... (including people like me, i.e. people who might have been able to afford a new one by now had the recession not seriously, seriously cut back their income...)

  6. #36
    EChas3's Avatar
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    Re: STS buying advice

    Even if the STS purchase price has moderated, repairs & maintenance are still commensurate with original list price; less expensive than the Germans but well above the Toyotas, the other Japanese, and all those Fords & Chevys.

  7. #37
    VivienM is offline Cadillac Owners Member
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    Re: STS buying advice

    Quote Originally Posted by EChas3 View Post
    Even if the STS purchase price has moderated, repairs & maintenance are still commensurate with original list price; less expensive than the Germans but well above the Toyotas, the other Japanese, and all those Fords & Chevys.
    Oh, I know... and that's a big part of why I haven't made them an offer on this car yet. They may yet sell it to someone else...

  8. #38
    VivienM is offline Cadillac Owners Member
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    Re: STS buying advice

    So, they may have sold that car to someone else, which... is not a huge loss, necessarily.

    One other question about this 3.6/chain/etc business: was this an issue with the 2006s too? But GM only extended the warranty on the 2007s? (I'm looking at an ad for a nice-seeming 2006 1SC...)

  9. #39
    curtc's Avatar
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    Quote Originally Posted by VivienM
    So, they may have sold that car to someone else, which... is not a huge loss, necessarily.

    One other question about this 3.6/chain/etc business: was this an issue with the 2006s too? But GM only extended the warranty on the 2007s? (I'm looking at an ad for a nice-seeming 2006 1SC...)
    All 3.6's are susceptible to premature timing chain wear/failure.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

  10. #40
    KRSTS is offline Cadillac Owners Enthusiast
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    Re: STS buying advice

    Quote Originally Posted by VivienM View Post
    But GM only extended the warranty on the 2007s?
    not true

  11. #41
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
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    Quote Originally Posted by KRSTS

    not true
    2005-2006 3.6's received no extended coverage for their timing chains.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

  12. #42
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    All 3.6 v6s suffer this.

  13. #43
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    Quote Originally Posted by 1BadCadSTS View Post
    All 3.6 v6s suffer this.
    Which is why I would never buy one in the CTS or STS or SRX
    V8 only.
    is3_ftw and is3_ftw like this.

  14. #44
    Guy.Seminerio is online now Cadillac Owners Connoisseur
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    Re: STS buying advice

    I know in 2010 they made a change on the 3.6 in the cts. First of all that year the non direct injected 3.6 was no longer available on the cts. It was either the 3.0 or the 3.6di. And on the latter they corrected the timing chain issue. Did they leave the sts out or did the sts 3.6 di get the change too?

  15. #45
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
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    Quote Originally Posted by Guy.Seminerio
    I know in 2010 they made a change on the 3.6 in the cts. First of all that year the non direct injected 3.6 was no longer available on the cts. It was either the 3.0 or the 3.6di. And on the latter they corrected the timing chain issue. Did they leave the sts out or did the sts 3.6 di get the change too?
    Wrong. 08 got the di for both CTS and STS. GEN 1 SRX never got the di.

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