Fuel, Ignition & Engine Control Systems - Removal, Installation & Specifications: Maintenance Volvo V70 II

Draining fuel injection system

Special tools

9812270

9812273

9812282

9995480

9995484

Scheme 9

Remove

1. throttle pulley cover
2. cap from valve on fuel rail.

Draining the fuel tank

Special tools

9812270

9812273

9812282

9985972

9995484

Draining the fuel tank via the fuel rail

HINT: Use this method if the fuel pump works.

Connect adapter 9995484 to fuel draining unit 9812270 , 9812273 , and 9812282 .

The adapter should not be connected to the pump of the draining unit but should lead down into the container.

Connect the adapter to the valve of the fuel rail in the locked position (valve closed).

Start draining.

Open the adapter (valve open).

The fuel pump in the fuel tank will now pump the fuel down into the container.

Draining a lowered fuel tank (AWD only)

HINT: Use this method if the fuel pump does not work.

HINT: If the tank is more than half full, it can take a long time to drain. This method could then be preferable even if the fuel pump works.

Tip the fuel tank slightly upwards so that the openings for the pump and ejector have the highest position.

Remove all fuel lines and fittings, see Changing the fuel tank, AWD .

Suck the fuel from the RH and LH tank halves with an open hose connected to the fuel draining unit.

Draining the coolant

Note. To drain the system the ambient temperature should be higher than 20°C (68°F). If the engine is left running for a while (five minutes) before draining, the draining will be faster.

Scheme 10

1. Draining is done via the service valve on the front
2. The A/C system is drained in approximately 25 minutes
3. Check for oil which may have run out when draining the coolant.

Note. When trouble-shooting: There are no high-pressure/low-pressure connections on the compressor. Therefore it is only possible to check if the pressure sensor works. Connection on vehicle service valve.