F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
Fuel Rail: Service and Repair
Standard Models (Non Bi-Fuel)
FUEL INJECTION SUPPLY MANIFOLD AND FUEL INJECTOR
REMOVAL
WARNING:
-
Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly
flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in personal injury.
-
Fuel in the fuel system remains under high pressure even when the engine is not running. Before working on or disconnecting any of the
fuel lines or fuel system components, the fuel system pressure must be relieved. Failure to follow these instructions may result in personal
injury.
All engines
1. Disconnect the battery ground cable.
2. Partially drain the engine cooling system.
3. Remove the air cleaner outlet pipe.
4. Disconnect the exhaust gas recirculation (EGR) valve vacuum hose and the evaporative emission canister purge valve hose and position them
aside.
5. Disconnect the evaporative emission canister purge valve vacuum hose.
6. Disconnect the fuel pressure regulator valve vacuum hose.