need advice sound from the top in front of engine . iam a bit lost i hear people talk about piston , water pump and timong chain . i open the valve cover timing chain look good . i remouve acc. belt (water pump is on this belt) sound the same ... so piston ??! can it be the cam hydraulic valve?


http://youtu.be/UYjhzfVefMs

 

We are biting our nails, what did it turn out to be?