Crankcase (pcv) Problems of Toyota Matrix

I started noticing a knocking in my engine. I reported it to the Toyota service department on 9-9-14. I was told by the Toyota service department( the one that has done all of my scheduled maintenance) " no abnormal sounds heard at this time. " in hind sight maybe they didn't hear the noise because she was low on oil and only listend for the noise after the oil change. I was never told that I should check my oil for leakage in between my scheduled maintenance! I checked my oil one day at random after I heard knocking again and she was very low on oil. I took her to Toyota and told them she was consuming oil. They suggested a fuel induction service for which they did on 1-12-17, which didn't fix the problem. On 9-12-17 at her next appointment I reported again the oil usage. Outcome; " performed inspection, found slight oil seepage at engine oil pan. Pcv system is working. Engine must be burning oil. Pistons and rings would need to be replaced. " big surprise there. I was so naive but I did take her to different Toyota service place for a second opinion. And yes you guessed it another engine oil cleaner service. And suggested piston and rings replaced. It was a mechanic friend that we took her to that kindly did some searching and found that Toyota had issued a TSB on August 11, 2011[1](# fn:1) to dealerships which says: " some 2006-2011 model year vehicles equipped with the 2az-fe engine may exhibit engine oil consumption. The piston assembly has been changed to minimize oil consumption. " and that po3o# (cylinder # misfire detected) dtc may also be set as a result of oil consuption" obviously there was there is a design error of the pistons.

See all problems of the 2009 Toyota Matrix 🔎.