Fuel System Pressure Release
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.
- Remove the fuel pump relay.
- Start the engine and allow it to idle until it stalls.
- After the engine stalls, crank the engine for approximately 5 seconds to make sure the fuel injection supply manifold pressure has been released.
- Turn the ignition switch to the OFF position.
- When fuel system service is complete, install the fuel pump relay.
- Cycle the ignition key and wait three seconds to pressurize the fuel system. Check for leaks before starting the engine.
- Start the vehicle and check the fuel system for leaks.NOTE: If fuel system pressure testing is necessary, carry out the following steps.
- Release the fuel tube clip at the fuel supply manifold.
- Install the special tool on the spring lock coupling at the fuel supply manifold.
- Close and push the special tool into the open side of the cage.
- Separate the fuel tube fitting.
- Install the special tool between the fuel supply tube and the fuel supply manifold.
NOTE:
The fuel pump relay is located in the engine compartment fuse box location K4/C-1051.
NOTE:
It may take more than one key cycle to pressurize the fuel system.