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Does the 2.0L in the 2009 Mazda 3 have a timing belt or a timing chain? If it is a timing chain is there a normal schedule or even a recommended interval for its replacement? (My previous car which was a Chev Cavalier with 2.2 Ecotec and had a timing chain which owners have found should be replaced at 160,000km because they have a tendancy to break and cause major engine damage.)
 

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tis a chain. not sure about life or set interval for changing...did you check the manual?
 

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Discussion Starter #3
[quote author=John_in_the_LBC link=topic=140927.msg3037848#msg3037848 date=1238813049]
tis a chain. not sure about life or set interval for changing...did you check the manual?
[/quote]
Thanks, its not mentioned in the manual.
 

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the chain usually doesnt break. the guides wear out and make it noisy
 

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I just bought a 2009 i touring a few weeks back. The salesman (who actually seemed very knowledgable(22yrs. selling mazda)) told me it has a chain and it should never need replacing.
 

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Never need replacing? I would ignore that. All parts will need to be replaced sooner or later. Look at Mercedes - they've used chains for many years but never tell someone NOT to ever replace it.

Chains just last a lot longer, but will eventually need replacing.
 

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you would need an engine overhaul by the time the chain goes anyways.
 

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Geeze....I guess I should have posted "Probably never"...I realize parts wear out eventually! That being said I think his point was the timing chain is not on a routine maintenance list! I sure many other more expensive parts would wear out long before the timing chain.
 

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FemGearHead...do you have plans to replace your timing chain? When would YOU recommend changing it and why?

Mercedes and others have timing chains probably due to the fact they have interference engines. My MIL has a mercedes with 350K on it. She's replaced about every part in the car, but I doubt she's replaced the timing chain.
 

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Has anyone out there ever replaced their timing chain? I'd be curious to hear from those who had at what mileage their mechanic or shop told them is necessary.
 

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I'd have to imagine that timing chains only really get replaced when rebuilding the engine. My Oldsmobile had 125k miles on it's timing chain without any issues.

My gf's VW and my mom's Santa Fe both have timing belts and they are recommended to be replaced every 60k miles. Woof!
 

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If a mechanic told me to replace my timing chain I'd be looking for a new mechanic!
 

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I have a 2005 2.0 3-Sport, I'm assuming it has a timing chain too, since the maintenance guide doesn't mentino anything about changing a timing belt....
 

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It's def timing chain, only few cars use timing belts. I've only seen a couple of motors lose timing tensioners or other timing issues with a chain that caused the engine to self destruct if they had been maintained properly. Most timing issues are manufacturer defects, improper installation at a later date or maintenance issues. Most chain systems are maintenance free upwards of a quarter million miles. A few systems are craptastic enough that you should consider replacing the chain and tensioner every 100-150k miles or so. Ours is not such a system.
 

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my 2009 mazda 2.0 liter has almost 170,000 and is getting the timing chain done. We believe that it streched from the a/c compressor locking up. The chain had over an inch of play in it.
 
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