Ford F150 Pickup. Instruction — part 1136

Fig. 6: Locating Fuel Tank Shield Bolts
Courtesy of FORD MOTOR CO.

3. Disconnect the connectors.

2003 Ford Pickup F150

2003 GENERAL INFORMATION Fuel System-General Information-Bi-Fuel - F150 Pickup

Fig. 7: Disconnecting connectors
Courtesy of FORD MOTOR CO.

4. Set the fuel selector switch to "ALT" and run the vehicle until the indicator lamp goes out.

2003 Ford Pickup F150

2003 GENERAL INFORMATION Fuel System-General Information-Bi-Fuel - F150 Pickup

Fig. 8: Locating Fuel Selector Switch
Courtesy of FORD MOTOR CO.

5. To pressurize the system, reverse the procedure.

FUEL TANK EVACUATION - LIQUID PROPANE GAS

WARNING:

Avoid inhaling propane gas or occupying confined areas containing
propane. Propane is heavier than air. The heavier gas can displace or
push fresh air out of an area. In large quantities, propane can displace
enough oxygen to make the surrounding air unfit to breathe and possibly
cause illness. If a person breathes propane gas or air that lacks oxygen
due to the presence of propane gas, headache, dizziness, and weakness
in the extremities can occur. In severe cases, prolonged breathing of
propane-fouled air can cause suffocation. In the event of illness from
inhaling propane gas, move the victim immediately to fresh air and
contact a physician or medical emergency personnel for artificial
respiration or other required treatment.

WARNING:

Do not needlessly vent propane fuel during service, and do not open the
80% stop-fill valve while a vehicle is inside a building. When servicing the
fuel system, follow the recommended procedures to shut off the fuel

2003 Ford Pickup F150

2003 GENERAL INFORMATION Fuel System-General Information-Bi-Fuel - F150 Pickup

1. Relieve the propane fuel system pressure. Refer to PRESSURE RELIEF - Liquid Propane Gas Bi-

Fuel System .

tanks and run the engine out of fuel before disconnecting the fuel system
components. If the fuel tank(s) are being serviced, have the fuel
evacuated by trained personnel at a local propane fuel station. Liquid
propane fuel vaporizes at normal barometric pressure at temperatures
above -42°C (-44°F), and expands to 270 times its volume as a liquid.
Unnecessary venting of propane fuel can create fire and health hazards
which could cause personal injury or death.

WARNING:

Be alert for situations that may cause the propane fuel system to vent
fuel. These include extremely hot days, parking near a space heater, or
hoisting a vehicle up near a ceiling heater. Release of propane fuel in a
confined area through the pressure relief valve could occur. The release
of propane fuel in a confined area could result in an accumulation of
flammable vapors. If fuel is vented near a heat source, a fire or explosion
could occur.

WARNING:

Do not use paint drying ovens for propane fueled vehicles. The heat of
paint drying ovens will increase the pressure in the fuel tanks. This could
cause venting of propane fuel vapor into the oven and result in a fire from
the heat or sparks in the electrical equipment. If the fuel is confined inside
an oven an explosion may occur. When refinishing the body panels of a
propane fueled vehicle use spot painting and drying methods.

WARNING:

If a confined area, such as a lubrication pit, has been subjected to
propane gas the area should be inspected for adequate oxygen levels by
a local health department before being entered or personal injury or death
may occur.

WARNING:

The fuel system pressure must be relieved before any component can be
removed. The fuel tanks must be evacuated prior to tank removal.
Removal of components without pressure relief or tank evacuation can
cause propane fuel to escape into the air and cause injury or death.

NOTE:

In high ambient temperatures, such as those experienced in desert locations,
the fuel system is designed to vent excess fuel vapor pressure. The pressure
relief valve will vent fuel and automatically reset itself.

NOTE:

If no approved propane holding tank is available at the repair facility have the
tanks evacuated by an approved local propane distributor.

NOTE:

This step must be carried out outside, and according to local regulations.

2003 Ford Pickup F150

2003 GENERAL INFORMATION Fuel System-General Information-Bi-Fuel - F150 Pickup