Fuel Tank Page 8A1–1

Page 8A1–1

Section 8A1

Fuel Tank

ATTENTION

Before performing any service operation or other procedure described in this Section, refer to Section 00

Warnings, Cautions and Notes for correct workshop practices w ith regard to safety and/or property damage.

1 General Information............................................................................................................................... 2

1.1 Fuel Level Sender Assembly.................................................................................................................................2

2 Service Operations................................................................................................................................ 3

2.1 Modular Fuel Pump and Sender Assembly..........................................................................................................3

Test..........................................................................................................................................................................3

Techline

Fuel Tank Page 8A1–2

Page 8A1–2

1 General Information

With the following exception, MY 2004 VY and V2 Series Fuel Tank information carries over from MY 2003 VY and

V2 Series vehicles:

• fuel level sender assembly.

For all other fuel tank information, refer to Section 8A1 Fuel Tank in the MY 2003 VY and V2 Series service information.

1.1 Fuel Level Sender Assembly

The MY 2004 VY and V2 Series fuel level sender assembly ceramic resistor card parameters are reversed (that is, the

resistance is 40 Ω when full and 250 Ω when empty). The reversal of the sender card resistance affects only the

following MY 2004 VY and V2 Series vehicles:

• domestic vehicles fitted with a V6 (naturally aspirated) engine,

• vehicles exported to the Middle East fitted with a V6 (naturally aspirated) engine, and

• vehicles fitted with a GEN III V8 engine.

The modular fuel pump and sender assembly used on the MY 2004 VY and V2 Series vehicles defined above and on

MY 2003 VY and V2 Series vehicles are incompatible and affects Service Information documentation.

MY 2004 VY and V2 Series vehicles fitted with the supercharged V6 engine and vehicles exported to Brazil and Brunei

carry over the MY 2003 VY and V2 Series modular fuel pump and sender assembly calibration (that is, 40Ω when

empty and 250Ω when full).

Fuel Tank Page 8A1–3

Page 8A1–3

2 Service Operations

2.1 Modular Fuel Pump and Sender

Assembly

Test

The fuel level sender assembly fitted to all

MY 2004 VY and V2 Series domestic and

Middle East naturally aspirated V6 vehicles

and GEN III V8 vehicles is not compatible

with the fuel level sender assembly fitted to

MY 2003 VY and V2 Series vehicles and

V2 Series II Coupe.

1 For all MY 2004 VY and V2 Series domestic and

Middle East naturally aspirated V6 vehicles and

GEN III V8 vehicles, measure the resistance across

terminals 2 and 3 of the fuel pump motor connector.

Take the following measurements:

a With the fuel level sender assembly in the empty

position, the resistance should be approximately

250 ohms.

b With the fuel level sender assembly in the full

position, the resistance should be approximately

40 ohms.

Figure 8A1 – 1

2 If the resistance at either of these positions is not within tolerance, replace the fuel level sender assembly, refer to

Section 8A1 Fuel Tank in the MY 2003 VY and V2 Series Service information.