Fuel Pressure Release: Service and Repair

WARNING: Fuel pressure at up to 2.5 bar will be present in the system, even if the engine has not been run for some time. Always depressurize the system before disconnecting any components in the fuel feed line (between fuel pump and pressure regulator). The spilling of fuel is unavoidable during this operation. Ensure that all necessary precautions are taken to prevent fire and explosion.


NOTE: Fuel pressure can be relieved at fuel rail feed union or fuel filter unions.


1. Position cloth around relevant union to protect against fuel spray.
2. Carefully slacken union.
3. Tighten union to correct torque once pressure has relieved.