Suzuki Liana RH413, Service Manual

Page: 290 / 1302

1G-6 Fuel System:
Fuel Pressure Relief Procedure
S3RH0A1706002
CAUTION
!
This work must not be done when engine is
hot. If done so, it may cause adverse effect to
catalyst.
After making sure that engine is cold, release fuel
pressure as follows.
1) Place transmission gear shift lever in “Neutral” (Shift
selector lever to “P” range for A/T model), set
parking brake, and block drive wheels.
2) Remove relay box cover.
3) Disconnect fuel pump relay (1) from relay box.
4) Remove fuel filter cap to release fuel vapor pressure
in fuel tank and then reinstall it.
5) Start engine and run it till it stops for lack of fuel.
Repeat cranking engine 2 – 3 times for about 3
seconds each time to dissipate fuel pressure in lines.
Fuel connections are now safe for servicing.
6) Upon completion of servicing, connect fuel pump
relay (1) to relay box and install relay box cover.
Fuel Leakage Check Procedure
S3RH0A1706003
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 (till fuel pressure is felt by
hand placed on fuel return hose).
2) In this state, check to see that there are no fuel
leakages from any part of fuel system.
Fuel Lines On-Vehicle Inspection
S3RH0A1706004
CAUTION
!
Due to the fact that fuel feed line is under
high pressure, use special care when
servicing it.
Visually inspect fuel lines for evidence of fuel leakage,
hose crack and deterioration, or damage.
Make sure all clamps are secure.
Replace parts as needed.
Fuel Pipe Removal and Installation
S3RH0A1706005
WARNING
!
Before servicing fuel system, be sure to
observe “Precautions on Fuel System
Service”.
Removal
1) Relieve fuel pressure in fuel feed line according to
“Fuel Pressure Relief Procedure”.
2) Disconnect negative cable at battery.
3) Disconnect fuel pipe joint and fuel hose from fuel
pipe at the front and rear of each fuel pipe.
For quick joint (2), disconnect it as follows:
a) Remove mud, dust and/or foreign material
between pipe (1) and joint by blowing
compressed air.
b) Unlock joint lock by inserting special tool
between pipe and joint.
Special tool
(A): 09919-47020
c) Disconnect joint (2) from pipe (1).
1
I2RH0B170006-01
I2RH01170005-01