Hi folks,
I have 2010 toyota innova with 2KD-FTV engine, with 120K kms on the odo. I think I have the dreaded d4d rattle, but the noise is always there even the engine has reached operating temp. But the noise is not as bad as I heard from youtube videos on "D4D rattle". The noise matched with the engine RPM, and the sound is not related whether the engine is under load or not (the volume of the noise not changed whether I rev it under neutral or under load, just the frequency is changed).
The car does not produce any smoke when starting up, no power delivery problems, good fuel economy, never had any limp mode, it runs great! The only problem I had is the NOISE. I bought the car used at 110K and I thought the noise is normal until I ride my friend's car with the same engine and the car noticeably quieter than mine. Now I feel like riding a tractor when I drive mine
I've gone to two different toyota dealers and they acknowledge the noise is a little bit louder than most but all parameters are still within specs
They recommended to check the valve clearance though, as they suggests the noise may be coming from there.
The toyota mechanic also shows me one of their customer's car just got in for servicing for engine/injector problem and OMG the noise is much horrible than mine.
So this morning I just put my car for servicing to check valve clearance, I also request them to inspect/clean the intake, throttle body, EGR, injector seals, clean the fuel tank, etc. Do you guys have any suggestions?