Removal and Installation: Removal
WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
The fuel system (fuel pump, high pressure fuel lines, fuel rail, injectors) contain very high pressure fuel. To avoid the risk of personal injury or fire;
- Do not loosen any fittings while the engine is running.
- Wait at least 10 minutes after shutting down the engine before loosening any fittings in the high-pressure fuel system to allow pressure to decrease to a lower level.
- Wear appropriate eye protection and protective equipment as high-pressure fuel spray can penetrate the skin.
- Never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
- Disconnect the battery or batteries. Refer to Battery Disconnect .
- Remove the air duct. Refer to Exploded View .
- Disconnect glow plug harness connector on cylinder number eight and reposition harness.
- Clean the area around the fuel pressure relief valve.
- Disconnect harness connector from fuel pressure relief valve.
- Using a suitable tool, loosen the fuel pressure relief valve inner nut while holding the outer nut and remove the fuel pressure relief valve (1).CAUTION: Do not reuse the fuel pressure relief valve.NOTE: After removing the fuel pressure relief valve, install Tool on all open fuel system components.
Tool
:-- - (J-54427)