Hear knocking at14-1500 rpm. Under load.
When engine at normal operating temp sound better. Also a little vibration at 1500 rpm. Oil pressure good, no smoking no oil consumption. Any ideas?
2012 dd15 low tone knocking at 1400-1500 rpm under load. Pdf deleted, getting better when engine at
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Reedbooks, Dec 9, 2019.