Primary Fuel Tank Module; Secondary Fuel Tank Module; Fuel Pump - Suzuki XL7 2007 Service Manual

CAUTION
!
If a fuel tank filler cap requires replacement,
use only a fuel tank filler cap with the same
features. Failure to use the correct fuel tank
filler cap can result in a serious malfunction
of the fuel and EVAP system.
The fuel tank filler pipe is equipped with a turn to vent
screw on the type cap which incorporates a ratchet
action in order to prevent over-tightening. The turn to
vent feature allows the fuel tank pressure relief prior to
removal. Instructions for proper use are imprinted on the
cap cover. A vacuum safety relief valve is incorporated
into this cap. To install the cap, turn the cap clockwise
until you hear audible clicks. This indicates that the cap
is correctly torqued and fully seated. A fuel filler cap that
is not fully seated may cause a malfunction in the
Emission System.

Primary Fuel Tank Module

The primary fuel tank module is located inside of the
right side of the fuel tank and contains a reverse flow
check valve. The check valve and the fuel pressure
regulator maintain fuel pressure in the fuel feed pipe and
the fuel rail in order to prevent long cranking times. The
primary fuel tank module also consists of the following
major components:
• The fuel level sensor (4)
• The fuel pump and reservoir assembly
• The fuel strainer
• The primary jet pump
• The secondary jet pump
• The fill limiter vent valve (6)
• The fuel tank pressure sensor (1)
• The fuel filter (3)
• The fuel pressure regulator (5)
• The fuel transfer pipe (2)

Secondary Fuel Tank Module

The secondary fuel tank module is located inside of the
left side of the fuel tank. The secondary fuel tank module
consists of the following major components:
• The fuel level sensor (1)
• The fuel pick-up (2)

Fuel Pump

An electric turbine style fuel pump (2) attaches to the
primary fuel tank module inside the fuel tank. The fuel
pump supplies high pressure fuel through the fuel filter
(1), past the fuel pressure regulator, and through the fuel
feed pipe to the Fuel Injection System. The fuel pump
delivers a constant flow of fuel to the engine even during
low fuel conditions and aggressive vehicle maneuvers.
The control module controls the electric fuel pump
operation through a fuel pump relay.
Fuel System: 1G-3