Fuel Tank
Fuel Tank Internal Components - Vehicle with 5 doors
| ITEM | DESCRIPTION |
|---|---|
| 1 | Fuel pump module |
| 2 | Fuel tank breather pipe connection |
| 3 | Liquid Vapor Separator (LVS) |
| 4 | Fuel level sensor - Floater |
| 5 | Suction pipe |
| 6 | Roll-over valve (quantity 4) |
Fuel Tank Internal Components - Vehicle with 3 doors
| ITEM | DESCRIPTION |
|---|---|
| 1 | LVS with Fuel Limit Vent Valve (FLVV) (quantity 2) |
| 2 | Roll-over valve overfill protection (quantity 2) |
| 3 | Suction pipe |
| 4 | Passive - Fuel level sensor 'A'- Float |
| 5 | Passive - Fuel level sensor 'B' - Float |
| 6 | Roll-over valve (quantity 2) |
| 7 | Fuel pump module |
| 8 | Fuel tank breather pipe connection |
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 mounted under the second row seat floorpan, forward of the rear suspension.
The fuel tank is a saddle tank design which is secured into a steel cradle which is bolted to the vehicle floorpan. The fuel filler neck is manufactured from stainless steel.
The fuel tank has a storage capacity of 90 liters (23 (US) gallons).
The fuel tank contains a fuel pump module which collects fuel from both sides of the tank. The pump supplies the engine's fuel demands while also supplying the fuel to power the 2 venturi. The rapid flow of fuel through the venturi nozzle creates a depression which:
- Draws fuel back across the saddle into the pump side of the tank
- Fills the fuel pump module swirl pot.
An internal bracket allows for the attachment of the left fuel pick-up and the fuel level sensor 'B'.
Fuel level inside the tank is monitored by 2 fuel level sensors.
Roll-over Valve
There are differences of roll-over valve between the vehicle of 5 door and 3 door as in the location diagrams. The fuel tank has 4 roll-over valves to allow the fuel vapor to exit and prevent pressurization of the fuel tank in normal operation. In the event of a vehicle rollover, the roll-over valves close to prevent the leakage of fuel from the fuel tank.
The fuel vapor is routed to the evaporative emission canister where it is stored before being purged at intervals to the intake manifold.
For additional information, refer to: EVAPORATIVE EMISSIONS
Fuel Limit Vent Valve
Unwanted pressure in the fuel tank can prevent it from filling to the maximum level. To stop this, the FLVV provides an opening that allows the release of fuel vapors from the fuel tank. The fuel vapors in the fuel tank escape through an internal breather hose connected to a stub port that passes through the fuel tank casing. From this point, the fuel vapors flow through a breather pipe to the fuel filler neck or to the evaporative emission canister.
Fuel level sensors
The fuel level sensors to measure the amount of fuel in the left and right sides of the fuel tank. The left passive fuel level sensor is attached to the fuel tank internal bracket. The right active fuel level sensor is attached to the outside of the fuel pump swirl pot. Both fuel level sensors are connected to the vehicle wiring harness through the wiring harness connector on the fuel pump module top flange assembly.
The fuel level sensors are hardwired to the BCM /GWM through the wiring harness.
For additional information, refer to: EVAPORATIVE EMISSIONS