Tappet Sound,

[Sunny Pak]

I own a Yaris 1.0 with VVTI engine.Car is fine but for last 2000-3000 Km it has started giving strange sound like Tappet clicking or may be knocking.

When the engine is cold ,its perfect but when it gets to normal temperature after driving 20-25 km sound comes, normally when I try to accelerate.It normally comes between 30-60 Km/hr speed and disappears afterwards.

I am using a CVT transmission and sound does not comes in B or S mode, exists only in D mode.

Can anyone help me????

[Madasafish]

I suggest try an engine flush first. Use Forte Engine Flush (or similar) and follow the instructions CAREFULLY.

It sounds as if you have a slightly blocked oil feed.. hence the flush.

[Sunny Pak]

I suggest try an engine flush first. Use Forte Engine Flush (or similar) and follow the instructions CAREFULLY.

It sounds as if you have a slightly blocked oil feed.. hence the flush.

I change the oil after every 5000 Km and use Zic,