2010 SRX 3.0 L timing chain
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Cadillac SRX Second Generation Forum - 2010+ Discussion, 2010 SRX 3.0 L timing chain in Cadillac SRX Forums; As anyone else experienced this problem... Have 2010 FWD SRX with 3.0 L engine.... Recently been told have a stretched ...
  1. #1
    SJS
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    2010 SRX 3.0 L timing chain

    As anyone else experienced this problem... Have 2010 FWD SRX with 3.0 L engine.... Recently been told have a stretched timing chain.. At of course, have 163,000 km... AHas anyone else experienced this problem? Thanks all!

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    Cadillac Cust Svc's Avatar
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    Re: 2010 SRX 3.0 L timing chain

    Quote Originally Posted by SJS View Post
    As anyone else experienced this problem... Have 2010 FWD SRX with 3.0 L engine.... Recently been told have a stretched timing chain.. At of course, have 163,000 km... AHas anyone else experienced this problem? Thanks all!
    Hi SJS,

    I apologize that you are currently experiencing timing chain concerns and I can see how it would be frustrating. It looks like you are reaching out to the forum for feedback regarding your situation. At this time, I can only assist customers and dealerships within the Unites States, but I would like to provide you with the contact information for your regional representatives in case you would like some additional assistance. If you would like, please provide me with your location so I can get you contact information for your local GM representatives.

    Have a great night,

    Austin J.
    Cadillac Customer Care

  4. #3
    JohnnyBzSRX's Avatar
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    Re: 2010 SRX 3.0 L timing chain

    Quote Originally Posted by SJS View Post
    As anyone else experienced this problem... Have 2010 FWD SRX with 3.0 L engine.... Recently been told have a stretched timing chain.. At of course, have 163,000 km... AHas anyone else experienced this problem? Thanks all!
    There's another thread on here regarding oil levels and being careful to not let it get too low or it could cause undue wear on the timing chain and result in it "stretching" (a simplistic phrase for describing the more complex reality that the chain's links don't actually yield and change dimensions, but rather the joints wear resulting in loosness and a slight overall length increase, combined with sprocket wear, allows the cam timing to get sloppy). However, 163,000 km seems like pretty good mileage out of a timing chain/sprocket. WAY better than a belt.

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    SRXyz is offline Cadillac Owners Member
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    Re: 2010 SRX 3.0 L timing chain

    That sounds like pretty decent mileage for those chains. Normal wear and tear.

  6. #5
    georule is online now Cadillac Owners Fanatic
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    Re: 2010 SRX 3.0 L timing chain

    Is breaking a timing chain on the SRX a Really Bad Idea? I know some cars it can basically wreck the engine if it happens (so don't fool around with it, get it fixed!).

  7. #6
    JohnnyBzSRX's Avatar
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    Re: 2010 SRX 3.0 L timing chain

    Quote Originally Posted by georule View Post
    Is breaking a timing chain on the SRX a Really Bad Idea? I know some cars it can basically wreck the engine if it happens (so don't fool around with it, get it fixed!).
    Not sure about the 3.0, but considering the 11.5:1 compression ratio of the 3.6L LFX, I wouldn't be surprized if the pistons would, ahem, "interfere" w/ the valves in the event of a timing chain failure. However, chains are much less likely to fail in that manner than belts, typically the timing gets really sloppy and performance suffers long before a chain breaks or jumps a tooth. Timing chains are not a regular maintenance item like timing belts.

    The 3.0L LF1 is from the same HFV6 family as the 3.6L LFX, so I wouldn't be surprized they used very similar heads / valves / cams / timing chain setups. Looks like the LAU 2.8T engine is also from the same family.

    http://en.wikipedia.org/wiki/GM_High_Feature_engine#LF1

    Not sure what this means:

    7.7mm IT chain system for all HFV6 applications

    Found it at: http://gmauthority.com/blog/gm/gm-en...#ixzz332hE3x2w

  8. #7
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    Re: 2010 SRX 3.0 L timing chain

    Quote Originally Posted by JohnnyBzSRX View Post
    There's another thread on here regarding oil levels and being careful to not let it get too low or it could cause undue wear on the timing chain and result in it "stretching" (a simplistic phrase for describing the more complex reality that the chain's links don't actually yield and change dimensions, but rather the joints wear resulting in loosness and a slight overall length increase, combined with sprocket wear, allows the cam timing to get sloppy). However, 163,000 km seems like pretty good mileage out of a timing chain/sprocket. WAY better than a belt.
    The last few cars I've owned had a 100,000 mile scheduled replacement for the timing belt (160,000 km).

    As JohnnyBzSRX mentioned, timing chains are usually not maintenance items (unlike belts) so this is either poor maintenance or a defective/low quality issue. Either way, if you wait until it breaks it could be catastrophic for the engine (not sure if this is an interference engine or not).

  9. #8
    JohnnyBzSRX's Avatar
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    Re: 2010 SRX 3.0 L timing chain

    Quote Originally Posted by srxycaddy View Post
    The last few cars I've owned had a 100,000 mile scheduled replacement for the timing belt (160,000 km).
    Wow, my OTOMH mental conversion from km to miles was way off! Indeed, a properly maintained engine should not be killing the timing chain that soon.

  10. #9
    georule is online now Cadillac Owners Fanatic
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    Re: 2010 SRX 3.0 L timing chain

    Quote Originally Posted by JohnnyBzSRX View Post
    Not sure about the 3.0, but considering the 11.5:1 compression ratio of the 3.6L LFX, I wouldn't be surprized if the pistons would, ahem, "interfere" w/ the valves in the event of a timing chain failure. However, chains are much less likely to fail in that manner than belts, typically the timing gets really sloppy and performance suffers long before a chain breaks or jumps a tooth. Timing chains are not a regular maintenance item like timing belts.

    The 3.0L LF1 is from the same HFV6 family as the 3.6L LFX, so I wouldn't be surprized they used very similar heads / valves / cams / timing chain setups. Looks like the LAU 2.8T engine is also from the same family.

    http://en.wikipedia.org/wiki/GM_High_Feature_engine#LF1

    Not sure what this means:

    7.7mm IT chain system for all HFV6 applications

    Found it at: http://gmauthority.com/blog/gm/gm-en...#ixzz332hE3x2w
    Wrecked a Porsche (luckily, a used, cheap one, but still) once with a busted timing chain. Swore me off out-of-warranty "German engineering", and taking chances with timing chains, ever again.

  11. #10
    Maximumkk is offline Cadillac Owners Fanatic
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    Re: 2010 SRX 3.0 L timing chain

    I think SJS is most mad at the fact at being only 3k out of the Powertrain warranty. Why, if it was going to go bad, didn't it happen at 158k?

    Max

  12. #11
    westham is offline Cadillac Owners Fanatic
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    Re: 2010 SRX 3.0 L timing chain

    Quote Originally Posted by Maximumkk View Post
    I think SJS is most mad at the fact at being only 3k out of the Powertrain warranty. Why, if it was going to go bad, didn't it happen at 158k?

    Max
    Go and voice your opinion with the dealer, sometimes a manufacturer will give you a break if you are just out of warranty, I got lucky that way with a similar just out of warranty problem with a Honda.

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