I am getting slight metallic ticking noise on my 2.4D EURO 4 engine on idle and higher rpm. No matter if car is hot or cold -it's always there. Goes togother with rpm but kinda dissapears with higer rpm?
Hard to hear with engine cover off and bonnet open, but when car is stationary with bonnet closed it's very audible.
How to determine if it's injector or lifters or something else? Should I be worried about this or just ignore?
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