Fuel Tank
| ITEM | DESCRIPTION |
|---|---|
| 1 | Right side fuel tank mounting bracket |
| 2 | Fuel pump module flange |
| 3 | Check valve |
| 4 | Breather pipe |
| 5 | Support bracket |
| 6 | Fuel level sensor 'B' |
| 7 | Fuel tank bracket - Left side |
| 8 | Low Pressure (LP) fuel line |
| 9 | Roll-over valve |
| 10 | Fuel delivery line |
| 11 | Float - Fuel level sensor 'B' |
| 12 | Fuel Limit Vent Valve (FLVV) |
| 13 | Roll-over valve |
| 14 | Fuel tank breather pipe |
| 15 | Fuel pump module |
| 16 | Roll-over valve |
The fuel tank is manufactured using 6 layer co-extruded blow molding technology providing both high mechanical strength and complete emissions integrity. The fuel tank is a saddle tank design which is mounted under the second row seat floorpan, forward of the rear suspension subframe. The fuel tank is secured with 2 straps which are bolted in position and a center fixing held in place with a nut. The fuel filler neck is produced from stainless steel.
The fuel tank provides the following:
- Storage of fuel. The system must contain a given quantity of fuel and must avoid leakage and limit evaporative emissions.
- Filling. The fuel tank must be filled in a secure way, without sparks.
- Provide a method for measuring the level of fuel in the fuel tank.
- Venting. The over-pressure is not allowed, the fuel vapors must be managed through valves.
- Provide a method for delivering the fuel to the engine.
The fuel tank has a storage capacity of 82 liters (18 gallons).
The fuel tank contains a fuel pump module which collects fuel from both sides of the fuel tank. The pump supplies the engine's fuel demands while also supplying the fuel to power the 2 jet pump venturi's. The rapid flow of fuel through the venturi nozzle creates a depression. This pressure difference draws fuel back across the saddle into the pump side of the fuel tank and fills the fuel pump module.
An internal bracket allows for the attachment of the left fuel pick-up pipe and the fuel level sensor 'B'.
An internal breather hose is connected to a stub port passing through the fuel tank casing. An external pipe and hose connect this port to the top of the fuel filler neck. This enables the fuel tank to be filled and controls the fuel cut off during filling.
Fuel level inside the tank is monitored by 2 fuel level sensors.
Roll-over valve
Roll-over valve allows vapor to escape to prevent tank pressurization in normal vehicle operating modes. This valve is designed to close to prevent fuel leakage through the breather in the event of a vehicle roll over. An internal breather hose connects the roll-over valve to a fuel vapor pipe connection on the fuel pump module flange. The fuel vapor is then routed to the evaporative emissions canister where it is stored before being purged at intervals to the engine's intake manifold.
Fuel Limit Vent Valve
The Fuel Limit Vent Valve (FLVV) allows the fuel tank to be filled to its maximum. The FLVV expels the air within the fuel tank through an internal breather hose connected to a stub port passing through the fuel tank casing. An external pipe and hose connect this port to the top of the fuel filler neck.
For additional information, refer to: EVAPORATIVE EMISSIONS