Hi,
Have a truck in the shop Cascadia with DD S60 with DPF.
Truck is choking when pressing accelerator and black smoke coming out ( rpms jump from 100 to 600 ). Once released gas pedal everything is working.
History:
Did overhaul and put old head ( per customer ). After 2 months head failed and valve broke. Changed liner and piston on cylinder #1 and #4. Changed injector on cylinder #1. And cylinder head.
Issue started after this happened then:
Changed ecm, injector #1, injector harness, turbo ( old actuator ) calibrated and passed, oil filter, fuel filter changed, checked timing twice, check valve adjustment...
I notice when I turn off injector on cylinder #1 everything is working fine. The time I turn on the injector on cylinder #1 RPM starts jumping 100-600 rpm up and down, smokes black and acts like wants to turn itself off.
Also - no codes active.
Engine "choking" when pressing accelerator
Discussion in 'Freightliner Forum' started by amazingrepairman, Nov 14, 2022.