Chrisso2014

Bought a used 2008 LC200 1VD-FTE with 325000 ks on the clock last month. Soon after a very annoying tapping noise developed. Taps at about 282 Hz or bpm in idle and goes up with the revs. When driving under load it is usually unnoticable but can easily be heard inside the car especially when at idle. Warm and cold. I went to a reputable mechanic and he suggested to replace all injectors - two of which came back with readings above 3 (0-3 is ok apparently). $5000 later, the noise is just the same. I'm gutted. Noise is clearly coming from the left lower end of the engine.