dineshmanjula

I have a toyota vitz (2003) I have two problems to clarify 1. It has a VVT-I engine. However i feel the noice of the engine is little high compared to other cars. Can there be any issue with the engine? Or else is this normal for this type of engines? 2. Even if there is a small level differance in the ground(or road), the car hit the ground. Now this happenes more often than earlier. Is there any problem with the suspenstion ? What will be side effects of this. Thanks