Fuel system purging (Fuel delivery system - Td5)

_ADJUSTMENTS

Fuel system purging

$% 19.50.07

If the vehicle runs out of fuel, or the fuel level is so low that the fuel system draws air into the fuel rail, the fuel rail will need to be purged before the engine will start. This can be achieved by following the procedure below.

If this procedure is carried out on a vehicle that has not run out of fuel or otherwise drawn air into the fuel rail, it can lead to the engine flooding and failing to start.

Purge

1. Turn the ignition switch off and wait 15 seconds.
2. Turn the ignition switch to position II and wait 3 minutes (this ensures that the fuel system purges all the air from the fuel rail within the cylinder head).
3. Fully depress the throttle pedal.
4. Keeping the throttle pedal fully depressed, crank the engine.
5. As soon as engine speed exceeds 600 rev/min, release the throttle pedal and the ignition switch.The engine must not be cranked continuously for more than 30 seconds at any one time.
6. If the engine fails to start, repeat the above procedure.

Fuel tank - drain

$% 19.55.02

Drain

1. Disconnect both leads from battery.

WARNING: Always disconnect the negative lead first. Disconnection of the positive lead while the negative lead is connected could result in a short circuit through accidental grounding and cause personal injury.

2. Remove fuel pump. FUEL DELIVERY SYSTEM - Td5, REPAIRS, Pump - fuel.
3. Using a fuel recovery appliance, drain the fuel from the tank into a sealed container. Follow the manufacturers instructions for the connection and safe use of the appliance.

Refill

1. Fit fuel pump. FUEL DELIVERY SYSTEM - Td5, REPAIRS, Pump - fuel.
2. Connect battery leads, positive terminal first.