2000 Mercedes Benz E430 Base 8 Cyl 4.3L
Engine knocking rattle noise at idle when warm
I have a noise that sounds like a rod, but someone else told me that it might be lifters. The engine has 150,000 miles on it and has never had any major internal maintenance, such as timing chain or valve work.
Yes that is right, it could be a worn Lifters that causing the problem. The spring maybe weak or damage and it can return the valves into closed position. And it could be the Push rods that bends and cause a knocking or ticking noise to the engine.