Fuel Pressure: Testing and Inspection

Fuel System Pressure Check

Special Service Tools






Gauge fuel pressure

310-116-01





Adapter - fuel pressure check

310-116(LRT-19-006A)

NOTE:
This procedure only checks the supply pressure to the high pressure pump.
1 Disconnect the battery ground cable. For additional information, refer to Specifications
2 Remove the engine cover. For additional information, refer to Engine Cover - 2.7L Diesel
3 Remove the fuel rail Schraeder valve cap.




4 Install the special tool to the fuel rail Schraeder valve.
5
WARNING: Do not carry or operate cellular phones when working on or near any fuel related components. Highly flammable vapors are always present and may ignite. Failure to follow these instructions may result in personal injury.
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related components. Highly flammable vapors are always present and may ignite. Failure to follow these instructions may result in personal injury.
WARNING: The spilling of fuel is unavoidable during this operation. Ensure that all necessary precautions are taken to prevent fire and explosion.
Start and run the engine.
- Open the valve on the special tool.
- Note the fuel pressure readings.
6 For fuel pressure data, refer to specifications. For additional information, refer to Specifications
7 Close the special tool valve.
8 Disconnect the special tool from the Schraeder valve.
9 Install the Schraeder valve cap.

10 Install the engine cover. For additional information, refer to Engine Cover - 2.7L Diesel

11 Connect the battery ground cable. For additional information, refer to Specifications