Suzuki 2006 SX4, Service Manual

Page: 329 / 1478

Fuel System: 1G-8
Fuel Pressure Relief Procedure
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CAUTION
!
This work must not be done when engine is
hot. If done so, it may cause adverse effect to
catalyst.
NOTE
If ECM detects DTC(s) after servicing, clear
DTC(s) referring to “DTC Clearance in
Section 1A”.
1) Make sure that engine is cold.
2) Shift transaxle gear shift lever in “Neutral” (shift
select lever in “P” range for A/T model), set parking
brake and block drive wheels.
3) Remove relay / fuse box cover.
4) Disconnect fuel pump relay (1) from relay / fuse box
(2).
5) Remove fuel filler cap in order to release fuel vapor
pressure in fuel tank, and then reinstall it.
6) Start engine and run it until engine stops for lack of
fuel. Repeat cranking engine 2 – 3 times for about 3
seconds each time in order to dissipate fuel pressure
in lines. Fuel connections are now safe for servicing.
7) After servicing, connect fuel pump relay (1) to relay /
fuse box and install relay / fuse box cover.
Fuel Leakage Check Procedure
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After performing any service on fuel system, check to
make sure that there are no fuel leakages as follows.
1) Turn ON ignition switch for 3 seconds (to operate
fuel pump) and then turn it OFF.
Repeat this (ON and OFF) 3 or 4 times and apply
fuel pressure to fuel line until fuel pressure is felt by
hand placed on fuel feed hose.
2) In this state, check to see that there are no fuel
leakages from any part of fuel system.
Fuel Tank, Cap Gasket and Fuel Line Inspection
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CAUTION
!
Due to the fact that fuel feed line is under
high pressure, use special care when
servicing it.
• Check fuel filler cap (1) and fuel lines for loose
connection, deterioration or damage which could
cause leakage. Make sure all clamps are secure.
• Check fuel tank for damage, cracks, fuel leakage,
corrosion and tank bolt looseness.
• Check fuel filler cap gasket (2) for an even filler neck
imprint or any damage.
• Replace any damaged or deteriorated parts.
There should be no sign of fuel leakage or moisture at
any fuel connection.
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