Question about 2008 Toyota Sienna

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2008 toyota sienna limitedloud engine noise like tappets or valves forthe firstb 2 miles of driving when engine is cold

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I have a 2009 with the same problem that the dealer told me was "normal" engine noise. BTW, our loaner does not have this noise.

Posted on Nov 29, 2010

  • kenfenske Dec 29, 2010

    My 2008 Sienna has the same loud valve noise when cold. Service informed me that a seal in the upper part of the engine leaks. It is supposed to hold oil in the upper part of the engine so the camshaft and valves are lubricated upon startup. Since it leaks, all the oil drains down when it sits. It takes a few minutes for the oil to pump up and lubricate the valves. Until it does the valves are very noisy. Service dept told me this is a known issue with this engine. The engine has to be removed from the vehicle for the repair to be made. Luckily it happened during the warranty period.

  • Dan1234567 Jan 29, 2014

    I later learned there is a TSB on this. Very expensive to fix because, as kenfenske says, have to remove the engine to fix it, but they should fix it for free.

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