Fuel Pressure Release: Service and Repair

Fuel System Pressure Release

General Procedure

WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

WARNING: Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

WARNING: Before working on or disconnecting any of the fuel tubes or fuel system components, relieve the fuel system pressure to prevent accidental spraying of fuel. Fuel in the fuel system remains under high pressure, even when the engine is not running. Failure to follow this instruction may result in serious personal injury.

WARNING: When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.

1. NOTE: The FP (Fuel Pump) relay is located in the BJB (Battery Junction Box), location F15.
Remove the FP (Fuel Pump) relay.

2. NOTE: The engine will crank and not start.
Crank the engine for approximately 20 seconds.

3. Crank the engine an additional 20 seconds to make sure the fuel system pressure has been released.

4. Turn the ignition switch to the OFF position.

5. When fuel system service is complete, install the FP (Fuel Pump) relay.

6. NOTE: It may take more than one key cycle to pressurize the fuel system. Cycle the ignition key and wait 3 seconds to pressurize the fuel system.
Check for leaks prior to starting the engine.

7. Start the vehicle and check the fuel system for leaks.