Question about 2007 Toyota Yaris

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Timing chain for toyota yaris

The chain is lose think its jumped couple of teeth machain says the chain has streached is this true .... many thanks
**** frm coventry

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  • Richard Scordino May 11, 2010

    It is true that chains stretch. generally there is a tensioner that takes up any slack, preventing chain from jumping time. Un less you have tons of miles on there, I'd look at the tensioner first. I don't know your engine...are you certain it has a chain or a belt? (belts are more prone to failure and then the mechanic may indeed be correct.)



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Whats the timing mark on 2009 toyota yaris?

Posted on Sep 22, 2011

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What is the issue you are having? Chains do strech but to to the point of failure there should be some major performance issues. If there is a lack of oil changes this could cause premature chain failure.

Low oil level will cause the tensioner to not work adequitly.

Also I have replaced the VVTi controller on the intke cam a few times for lack of performance, always has trouble codes to go along with poor performance tough.

Posted on May 12, 2009


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Look for some Youtube videos on this repair. If I remember correctly the links on this chain have different color metal for the spots that the cam tooth goes against. When each side is in the proper tooth the right and left colored links will be on the cam mark and the crank mark should be on the timing TDC mark. Sounds like the slack you describe is wrong and a tooth is off because the tensioner is allowing slack.. You need to slip a tooth one way or the other until the tensioner has room to be in a neutral position.

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