My 2010 Rav 4 has 53000 easy miles on it, started last week with this whining, roaring sounds, would only last a short time go away, noticed it at 1st start in am when cold, then next day it happened more freq. We called to set up appointment with Toyota dealer! So we drove it to town same as usual, it had rained the sounds stopped OK we thought brakes, as the sounds seems like it is coming from right rear wheel area. So we stopped got brakes Hubby put them on same night,Took the car away drove it noticed high pitch sounds like the wheels on trains screeching and at times it sounded like a flute BUT next day which is actually the 4th day after this whole thing started, Thinking all is well I drove the car 4 mile to town and all of a sudden I heard this awful clunking, roaring, banging sounds coming from again the right rear side, so I parked car, hubby came got it and towed it to the Toyota Garage, That was Friday morning, Today is Tuesday our appointment was at 915 am, they called today to say it would be a couple days need to order parts as the noise was coming from the timing????? we are not to sure on this BUT I wanted to post to see if anyone else had this issue,, OH 1 more thing we also had a funny rattle when we'd start up car in morning , they said that is put of the timing issue,, Please post your ideas please on this matter, does it sound reasonable???