Question about 2007 Toyota Sienna

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After taking van in for a major service, it started smoking thru exhaust. Smokes when you start it and when accellerating after a stop. They changed the oil and filter again and flushed with transmission fluid then changed oil and filter again. It seems to have gotten a lot better but still smoking inconsistantly. I can hear a clicking noise in the engine right before it lets out a large cloud of smoke.

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If you are talking about something like a 60 or 90,000 it is possible that they used a injector cleaner which is sucked in throught he intake manifold. 1st, they should have used a manufacturer oil filter which will prevent the clicking from occuring(most manufacturers have some form of TSB regarding this issue). This is lack of oil pressure being retained to the hydraulic lifters(valve tap). Look at your invoice and make sure they used the proper oil weight. 2nd, if they did use some form of intake cleaner, they should have driven it around the block until the risidual cleaner has burned out. 3rd thing to check is whether or not a new kid was put on this project. If it was started without oil even for a moment, it is possible it has done internal engine damage and needs to be addressed with the service manager and possibly the GM. Don't wait on this issue until something big happens. With that receipt/invoice in your hands, this is a contract stating that they have addressed your concerns, performed all agreed upon work and that it was performed professionally and to manufacturers specificatons. Not to mention, to your satisfaction. Let me know if you need anything further.

Posted on Aug 08, 2010


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