6.7L Cummins Injectors and Fuel Lines – Fuel Pressure Relief Valve – Remove
Remove the fuel pressure relief valve.
Category Archives: 6.7L Cummins
6.7L Cummins Injectors and Fuel Lines – Fuel Pressure Relief Valve – Measure
If available , run the engine, use INSITE’M electronic service tool fuel pressure override test. Otherwise , run at idle. Place the end of the fuel drain hose, or pressure gauge adapter, in a bucket and measure the flow. Specification At Idle: No flow. INSITE”‘ electronic service tool override: Maximum of 1 drop per second… Read More »
6.7L Cummins Injectors and Fuel Lines – Fuel Pressure Relief Valve – Setup
The purpose of this test is to check for a fuel rail pressure relief valve (1) that leaks excessive fuel to the fuel drain (2) line. Front Gear Train Fuel Rail Pressure Relief Valve Drain: Isolation of the fuel rail pressure relief valve flow from the injector return flow requires the use of the fuel… Read More »
6.7L Cummins Injectors and Fuel Lines – Fuel Pressure Relief Valve – Initial Check
Check the pressure relief valve for leaks or other damage.
6.7L Cummins Injectors and Fuel Lines – Fuel Pressure Relief Valve – General Information
The fuel rail contains high-pressure fuel from the fuel pump. The fuel pressure relief valve is a cartridge located at the front end of the fuel rail. 1 Fuel pressure relief valve 2 Fuel pressure relief valve drain.
6.7L Cummins Injectors and Fuel Lines – Fuel Rail – Install
Install the fuel rail on the engine. Hand tighten the fuel rail mounting capscrews. Install the injector supply line(s) that connect the fuel rail to the fuel injectors. Refer to Procedure 006-051 in Section 6. Connect the high-pressure supply line that connects the fuel pump to the fuel rail. Refer to Procedure 006-071 in Section… Read More »
6.7L Cummins Injectors and Fuel Lines – Fuel Rail – Clean and Inspect for Reuse
Inspect the fuel line connections at the fuel rail for cracks or scratches. Inspect the inlets of the high-pressure lines for damaged sealing surfaces. Check for a loose or damaged fuel pressure sensor and/ or pressure relief valve. Replace the fuel pressure sensor, if damaged. Refer to Procedure 019-115 in Section 19. Replace the pressure… Read More »
6.7L Cummins Injectors and Fuel Lines – Fuel Rail – Remove
Remove the fuel rail mounting capscrews. Remove the fuel rail.
6.7L Cummins Injectors and Fuel Lines – Fuel Rail – Initial Check
Check the fuel rail for leaks, loose capscrews, or any other problems.
6.7L Cummins Injectors and Fuel Lines – Fuel Rail – General Information
The fuel rail contains high pressure fuel from the fuel pump. • Fuel pressure relief valve • Fuel pressure relief valve drain • High pressure fuel supply fitting from fuel pump • Mounting bracket(s) • High pressure injector supply fitting(s) • Fuel pressure sensor.