Does #11340C special coverage adjustment cover every 2009 3.6L CTS? - Page 2
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2008-2013 Cadillac CTS General Discussion Discussion, Does #11340C special coverage adjustment cover every 2009 3.6L CTS? in Cadillac CTS Second Generation Forum - 2008-2013; Mine has never been low. I'm a car guy so I check my fluids regularly on all my cars. I ...
  1. #16
    Mustang Matt is offline Cadillac Owners Member
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Mine has never been low. I'm a car guy so I check my fluids regularly on all my cars.

    I did have a slight case of detonation a while back when the car was still under warranty. I wouldn't think that would cause it though. The dealer did the induction cleaning service which seemed to clear it up.

  2. #17
    RippyPartsDept's Avatar
    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Ok, just letting you know the most common cause for the chain stretch

    since you've owned yours since it was brand new you can be sure that the oil did not need topping off and was always at the proper level
    many people who purchase their 3.6L powered Cadillac used don't know what the previous owner's fluid check regimen was like (if they had one at all)
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at
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  3. #18
    Mustang Matt is offline Cadillac Owners Member
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Hey Chris,

    For the cars that are losing oil, how are they losing it? Blowing past the rings, PCV, or something else?

    It seems like losing 2 quarts between oil changes would be a warranty issue in and of itself.

    It looks like the replacement procedure is to unbolt everything and drop the motor/k-member/suspension.

    I've done that before on Mustangs using an ATV jack. I'm mentally preparing for the idea of having to do it myself if Cadillac doesn't come through.

  4. #19
    RippyPartsDept's Avatar
    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    GM's warranty guidelines for oil consumption are something like more than a quart consumed every 1500 miles is a warranty condition
    under that consumption level is within spec (don't quote me on the 1500miles number but it's something like that and it may change over time)

    depending on your interval any amount of consumption could leave you out of oil or close to it if you don't ever check your oil level
    for instance, consumption of one quart per 2000 miles over a 12000 mile interval would leave you out of oil when it was time for your oil change
    in that example there would probably be other signs of low oil level like upper engine timing/valve noise

    more often there's even less consumption but it would leave the owner approx 2 quarts low if they go by the oil life monitor and never check the dipstick
    over time, that will show as timing chain stretch as the tensioners have to work extra to keep the chain tight when low on oil

    this is why the owners manual suggests checking the oil level (with the dipstick) at every gas fill-up
    ...

    as for how the oil is getting consumed i think the most common are PCV ingestion and ring blow-by
    the PCV ingestion is by design (kind of.... there's an aftermarket catch can quasi-solution to this ingestion)
    the ring blow-by would have to do with the initial engine break-in
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at
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  5. #20
    Mustang Matt is offline Cadillac Owners Member
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    I'd have to go look but if memory serves me right, most of my oil changes have been around 7500 miles.

  6. #21
    Douglas Rome is offline Cadillac Owners Fanatic
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    you'd be surprised, I couldn't believe it. We were swapping brake pads on my daughter's Lexus,
    S-I-L and me, in my garage. got done and just for grins I checked the oil dipstick, it was low so I
    poured a quart, still low, added another quart, still low, still low. ended up adding 4qts on a 5qt
    system. my S-I-L didn't have a clue. thanks, douglas

  7. #22
    Mustang Matt is offline Cadillac Owners Member
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    How could it be so low and not throw a CEL?

    Note to self: Never buy a Lexus!

  8. #23
    99flhr is offline Cadillac Owners Enthusiast
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Quote Originally Posted by Mustang Matt View Post
    I'm going to research how difficult the replacement is. I know I can buy the chain and tensioner set for about $400 or so.
    FWIW There is a video on Y-Tube showing the process.

  9. #24
    Mustang Matt is offline Cadillac Owners Member
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    I watched a couple of them. Wish I had a lift. Hey! Maybe I can justify putting the money I'd save doing it myself towards a lift. I'm sure the wife will buy that logic.

  10. #25
    99flhr is offline Cadillac Owners Enthusiast
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Quote Originally Posted by Mustang Matt View Post
    Maybe I can justify putting the money I'd save doing it myself towards a lift. I'm sure the wife will buy that logic.
    Good luck.

  11. #26
    tinman's Avatar
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Quote Originally Posted by Mustang Matt View Post
    I watched a couple of them. Wish I had a lift. Hey! Maybe I can justify putting the money I'd save doing it myself towards a lift. I'm sure the wife will buy that logic.
    I've been married 88 years. Of course she will.

    I'm the man of MY house...when she lets me be!
    HurstGN likes this.

  12. #27
    Douglas Rome is offline Cadillac Owners Fanatic
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Quote Originally Posted by Mustang Matt View Post
    How could it be so low and not throw a CEL?

    Note to self: Never buy a Lexus!
    yes, the lexus is a POS for sure, but the bigger issue is these kids now-a-days, don't
    have a clue, and I don't think they even care it's only money; your car is broke? buy another
    one, or sink money into it some guy will be happy to take your money. thanks, douglas

  13. #28
    tinman's Avatar
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Actually, kids now a days don't even want a car.

  14. #29
    Mustang Matt is offline Cadillac Owners Member
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Robin at Cadillac told me I'm SOL.

    They aren't willing to do anything for me.

    There's no way I'm paying $3100 to the dealership for the repair. I had to pay $130 just to get them to tell me what I already knew so I could even talk to corporate.

    Lessons learned here:
    1. Never buy a product that's powered by a GM 3.6L.
    2. If you own a product with a GM 3.6L, sell it before the warranty is up.
    3. Don't expect Cadillac to do the responsible thing and admit that their new supplier isn't any better than their last one.

    I've never heard of a properly maintained engine having timing chain issues other than the GM 3.6L.

    Extremely disappointed in the way this played out. I'm going to fix it and go back to Ford.
    99flhr likes this.

  15. #30
    tinman's Avatar
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    Re: Does #11340C special coverage adjustment cover every 2009 3.6L CTS?

    Your engine, my transmission. I had three rebuilds within 2 months just a couple of months ago. My transmission was built in France, which helps me understand why it failed, but still, I totally understand your frustration. At least mine was under warranty, but the taste still lingers.

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