Engine Running Rough !!!

[ian4455]

Can anyone help me out, my 2.5 Turbo Diesel Disco is running rough at tick over, the engines vibrating excessively, and tick over speed has dropped by approx 50 rpm and there's a funny noise coming from the air box. I've lower power and there's a very slight amount of brown smoke coming from the exhaust at tick over also. I'm wondering if i've an injector blocked or gone faulty?? - Bosch Rotary Pump. Any suggestions or help appreciated..!!!

[singingcamel]

use some injector cleaner,check your air cleaner and fuel filter.