Fuel System Pressure Release - Diesel Engines
WARNING:
Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related component. Highly flammable mixtures are always present and may be ignited, resulting in possible personal injury.
WARNING:
Fuel in the fuel system remains under high pressure even when the engine is not running. Before servicing or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing personal injury or a fire hazard.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
- Disconnect both battery ground cables. For additional information, refer to BATTERY, MOUNTING AND CABLES .
- Open the fuel/water separator drain valve to release the fuel pressure.