The PCM is located on the top right side of the bulkhead. The PCM receives battery power from the PCM power relay through the chassis…
Category: 6.7L Power Stroke
Each injector has a unique 10 digit code representing the flow characteristic of that injector. The IQA code is located on each injector head and…
When the high pressure is relieved from the top of the nozzle needle, high pressure on the lower surfaces force the needle up and allows…
The lower hydraulic coupler piston moves the control valve down to relieve high pressure from the top of the nozzle needle (the control chamber). When…
The piezo stack is linked to the control valve of the fuel injector via a fuel-filled hydraulic coupler. The upper piston of the coupler is…
The piezo actuator is a stack of piezo crystals. When current is applied to the crystals, the crystals expand. When the PCM supplied current is…
There are eight fuel injectors; four mounted on each cylinder head. They are serviced without removing the valve covers. The Injector Quantity Adjustment (IQA) must…
The high pressure fuel lines run between the: • high pressure fuel pump and left fuel rail. • right and left fuel rails. • fuel…
The fuel rails on the 6.7L Power Stroke® diesel engine are on the outside of the valve covers. The left fuel rail has the FRP…
The FRP is threaded into the front of the left fuel rail. The FRP sensor is a three-wire variable capacitance sensor. The PCM supplies a…