Fuel System: Priming
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.
- After a filter change or running the fuel tank dry, complete the following:
- Key ON vehicle for 90 seconds to prime the fuel system. After 90 seconds, crank the engine for a maximum of 30 seconds or until the engine fires. If it does not fire, verify the following.
- Confirm fuel level is not empty.
- Water-in-fuel drain valve is closed.
- Stage 1 filter housing shell is fully seated on module and stage 2 cap is properly seated on module.
- Stage 1 shell O-ring and stage 2 cap O-ring are properly installed and not damaged.
- Stage 1 fuel filter element (1) "No Filter/No Run" pin (A) is not damaged.
- Stage 2 fuel filter element (1) seal (A) (at bottom of element) is not damaged (seal can be damaged if element is installed incorrectly).
- Then repeat the step above.
- When the engine does start, it may operate erratically and with increased noise levels for a few minutes. This is a normal condition as air is being removed from the system.CAUTION: Repeated dry priming may damage the filter assembly and result in no-start.NOTE:
- It is not necessary to vent air from the high-pressure fuel system before starting the engine.
- It is possible DTCs may become active after fuel filter replacement due to air introduced in the system. Make sure to run the engine until air is purged and use CONSULT to clear any active codes.
- Operate the engine and check for leaks.
- Key ON vehicle for 90 seconds to prime the fuel system. After 90 seconds, crank the engine for a maximum of 30 seconds or until the engine fires. If it does not fire, verify the following.