Fuel System Pressure Relief

CAUTION: Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury.

After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.

NOTE: Do not perform this procedure if the engine is hot. Unburned fuel entering the catalytic converter could damage the converter catalyst.




1. Loosen the fuel filler cap in order to relieve the fuel tank pressure.
2. Remove the relay box cover from the relay box.
3. Remove the fuel pump relay (1) from the relay box (2).
4. Crank the engine, and allow the engine to start and to stall.
5. Crank the engine for an additional 3 seconds in order to relieve any remaining fuel pressure.

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

6. Disconnect the negative battery cable in order to avoid any additional fuel discharge.
7. Install the fuel pump relay (1) to the relay box (2).
8. Install the relay box cover onto the relay box.
9. Tighten the fuel filler cap.