How do you bleed the air out of the fuel lines

James, If it is a fuel injected car, probably no air in fuel lines, have car scanned for trouble codes to assist diagnosing problem, could be dirty fuel injectors.

we dont have this engine here, USA.
but i have the WG jeep book,
starting page 12 , chapter 14


FUEL INJECTION PUMP BLEEDING
(1) If the fuel injection pump has been replaced,
air should be bled at the overflow valve before
attempting to start engine.
(a) Loosen the overflow valve (Fig. 18) at the
rear of the injection pump.
(b) Place a towel below the valve.
WARNING: WHEN CRANKING THE ENGINE TO
BLEED AIR FROM THE INJECTION PUMP, THE
ENGINE MAY START. PLACE THE TRANSMISSION
IN NEUTRAL OR PARK AND SET PARKING BRAKE
BEFORE ENGAGING THE STARTER MOTOR.
CAUTION: Do not engage the starter motor for
more than 30 seconds at a time. Allow 2 minutes
between cranking intervals.
(2) Crank the engine for 30 seconds at a time to
allow air trapped in the injection pump to vent out
the fuel injector drain tubes. Continue this procedure
until the engine starts. Observe the previous WARNING
and CAUTION.
(3) Tighten overflow valve.
HIGH-PRESSURE FUEL LINE BLEEDING
WARNING: THE INJECTION PUMP SUPPLIES HIGH-
-PRESSURE FUEL OF APPROXIMATELY 45,000 KPA
(6,526 PSI) TO EACH INDIVIDUAL INJECTOR
THROUGH THE HIGH-PRESSURE LINES. FUEL
UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE
THE SKIN AND CAUSE PERSONAL INJURY.
WEAR SAFETY GOGGLES AND ADEQUATE PROTECTIVE
CLOTHING AND AVOID CONTACT WITH
FUEL SPRAY WHEN BLEEDING HIGH-PRESSURE
FUEL LINES.
WARNING: DO NOT BLEED AIR FROM THE FUEL
SYSTEM OF A HOT ENGINE. DO NOT ALLOW FUEL
TO SPRAY ONTO THE EXHAUST MANIFOLD WHEN
BLEEDING AIR FROM THE FUEL SYSTEM.
Bleed air from one injector at time.
(1) Loosen the high-pressure fuel line fitting at
the injector (Fig. 19).
(2) Crank the engine until all air has been bled
from the line. Do not operate the starter motor
for longer than 30 seconds. Wait 2 minutes
between cranking intervals.
(3) Start the engine and bleed one injector at a
time until the engine runs smoothly.

end quote.
pump timing is on next page
or tank filter line priming before. above.

1 Blocked fuel filter = fit new filter and bleed fuel lines
2 Air in fuel lines = check fuel lines for cracks, repair and bleed fuel lines
3 No fuel = fuel car, bleed fuel lines

you shouldn't need to bleed the air out-if you filled back up with fuel and its not starting you probably have a bad fuel pump-sorry- to bleed the fuel line look where the fuel line connects to the fuel injector rail-on the rail there should be a thing that looks like a tire inflator valve-turn the key on and push in the center of the valve and fuel should come out of it -if not then for sure pump isn't working- cheers Denny

It is not necessary to bleed air in your system as the fuel flow through the lines will pass the air back to the tank. have a fuel pressure test done on the fuel manifold and it will check fuel pump/ filter and fuel pressure regulator.

If you have air in your fuel line it may have a crack in your line ,do you have a clear fuel filter ? How are you seeing the air If you just reinstalled a new line bleeding is not nessary..

how to bleed fuel line on a 86 f800 for 8.2 powerbuilt