1.33 DUAL VVT-I 2012 Toyota Yaris Vibrating at idle

[andy64]

Have similar in my 2012 . Started 3 mths ago (11k km) . Was H frequency very annoying vibrations.
Complained at 3th service . Dealer cleaned sensors but did not find cause.
After the H frequency vibration decreased to low frequency what is less annoying but exists.
After ticking/tapping at idle (what agree to dealer is a normal noise ) is the next Toyota surprise for a new car.
What next????

[dobrik]

Originally Posted by andy64

Have similar in my 2012 . Started 3 mths ago (11k km) . Was H frequency very annoying vibrations.
Complained at 3th service . Dealer cleaned sensors but did not find cause.
After the H frequency vibration decreased to low frequency what is less annoying but exists.
After ticking/tapping at idle (what agree to dealer is a normal noise ) is the next Toyota surprise for a new car.
What next????

so 1nr-fe tapping at idle is not only our local issue.... I had also 've been to dealer with this tapping sound when the engine is warmed up. toyota representative found it just regular engine VVT-i system sound. i wonder why it happens only on warmed up engine though (when the oil viscosity is low). btw most of the cars with that engine I've heard - have this sound...