TOYOTA AVALON 2001 Service Repair Manual

SF0LL-01
SF-18
- SFIFUEL PRESSURE REGULATOR
1127 Author
: Date
:
2001 AVALON (RM808U)
INSTALLATION
Installation is in the reverse order of removal (See page SF-17).

SF0LK-01
B02379
B02380
- SFIFUEL PRESSURE REGULATOR
SF-17
1126 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE FUEL PUMP ASSEMBLY FROM FUEL TANK
(See page SF-1 1)
2. REMOVE FUEL FILTER
(a) Remove the screw, and pull out the fuel filter.
Torque: 2.0 N´m (20 kgf´cm, 17 in.´lbf)
(b) Remove the O-ring from the fuel filter.
HINT:
At the time of installation, please refer to the following items. Ap-
ply a light coat of gasoline to a new O-ring, and install it to the
fuel filter.
3. REMOVE FUEL PRESSURE REGULATOR
(a) Remove the screw, and pull out the pressure regulator.
Torque: 2.0 N´m (20 kgf´cm, 17 in.´lbf)
(b) Remove the O-ring from the pressure regulator.
HINT:
At the time of installation, please refer to the following items. Ap-
ply a light coat of gasoline to a new O-ring, and install it to the
pressure regulator.

SF0LR-02
B09083
Heated Oxygen Sensor (Bank 1 Sensor 2)
Before installing the heated oxygen sensor,
twist the sensor wire counterclockwise
3 and 1/2 turns. HINT:
After installing the heated oxygen sensor,
check that the sensor wire is not twisted,
if it is twisted,remove the heated oxygen
sensor and reinstall it.
The Location of Fuel Tank Cushion
No.1 Fuel Tank
Protector
Fuel Tank Vent
Tube Set Plate
Fuel Pump
Fuel Outlet Tube
Fuel TankFuel Inlet Hose
Fuel Inlet Pipe Fuel Inlet Pipe Shield
Fuel Tank Cap
Fuel Inlet Pipe Protector
Heated Oxygen Sensor
(Bank 1 Sensor 2)Heat Insulator Fuel Tank Band
Center Exhaust Pipe  Gasket Gasket  Gasket
 Non-reusable part
N´m (kgf´cm, ft´lbf): Specified torque
39 (400, 29)
44 (450, 33)
43 (440, 32)
x 8

 Gasket
Compression
Spring
43 (440, 32)
EVAP Line Hose
Vent Line Hose
Charcoal
Canister
- SFIFUEL TANK AND LINE
SF-27
1136 Author
: Date
:
2001 AVALON (RM808U)
FUEL TANK AND LINE
COMPONENTS
CAUTION:
Always use new gaskets when replacing the fuel tank or component parts.
Apply the proper torque to all parts tightened.

SF0LS-01
BO0919
Crack Leakage
Deformation
Z10162
SSTUse SST
28 N´m
(285 kgf´cm, 21 ft´lbf)
Fulcrum
Length
30 cm
(11.81 in.)
SST: 09631-22020
FU0041
PipeHose
Clip 2 - 7 mm (0.08 - 0.28 in.)
0 - 3 mm (0 - 0.12 in.)
SF-28
- SFIFUEL TANK AND LINE
1137 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
INSPECT FUEL TANK AND LINE
(a) Check the fuel lines for cracks or leakage, and all connec-
tions for deformation.
(b) Check the fuel tank vapor vent system hoses and connec-
tions for looseness, sharp bends or damage.
(c) Check the fuel tank for deformation, cracks, fuel leakage
or tank band looseness.
(d) Check the filler neck for damage or fuel leakage.
(e) Hose and pipe connections are as shown in the illustra-
tion.
If a problem is found, repair or replace the parts as necessary.

SF0LE-02
B09787
Rear Seat Cushion

Gasket
4 (40, 35 in.´lbf)
Floor Service Hole Cover
Fuel Pump & Sender
Gauge Connector
No.1 Fuel Tank Protector
Fuel Tank Vent Tube Set Plate
Fuel Filter Fuel Pump Flange
Fuel Pump
Fuel Pump Filter
Rubber Cushion
N´m (kgf´cm, ft´lbf)

Non-reusable partHousing
ºCº Bracket Fuel Sender Gauge
Lead Wire
: Specified torque
Fuel Sender Gauge
Connector
Ground
Plate
Fuel Pump Assembly

Clip
O-Ring
SF-10
- SFIFUEL PUMP
111 9 Author
: Date
:
2001 AVALON (RM808U)
COMPONENTS

SF0LG-01
S06028
S06033
A
Push
B02379
S06030
(1)
(2)(3)
S06027
SF-12
- SFIFUEL PUMP
1121 Author
: Date
:
2001 AVALON (RM808U)
DISASSEMBLY
1. DISCONNECT FUEL PUMP CONNECTOR
2. DISCONNECT GROUND PLATE
3. DISCONNECT FUEL SENDER GAUGE CONNECTOR
4. REMOVE FUEL SENDER GAUGE
Push down the portion of A with a finger, and push up the send-
er gauge.
NOTICE:
Be careful that the arm of the sender gauge should not
bend.
5. REMOVE FUEL FILTER
(a) Remove the screw, and pull out the fuel filter.
(b) Remove the O-ring from the fuel filter.
HINT:
At the time of installation, please refer to the following items.
Install the pump filter with a new clip.
6. REMOVE FUEL PUMP FLANGE
Using a screwdriver, remove the snap fit portion in the order of
1, 2 and 3 as shown in the illustration.
HINT:
At the time of installation, please refer to the following items. Ap-
ply a light coat of gasoline to a new O-ring, and install it to the
fuel filter.
7. REMOVE FUEL PUMP LEAD WIRE

S06029
(1)
(2)(3)
FI6376
- SFIFUEL PUMP
SF-13
1122 Author
: Date
:
2001 AVALON (RM808U)
8. REMOVE ºCº BRACKET, RUBBER CUSHION AND
FUEL PUMP
Using a screwdriver, remove the snap fit portion in the order of
1, 2 and 3 as shown in the illustration.
9. REMOVE FUEL PUMP FILTER FROM FUEL PUMP
(a) Using a small screwdriver, remove the clip.
(b) Pull out the pump filter.
HINT:
At the time of installation, please refer to the following items.
Install the pump filter with a new clip.

SF0LI-01
- SFIFUEL PUMP
SF-15
1124 Author
: Date
:
2001 AVALON (RM808U)
INSTALLATION
Installation is in the reverse order of removal (See page SF-1 1).

A10838
TOYOTA Hand-Held Tester
DLC3
SF0LD-02
B09075
S05359
Fuel Tube Connector
SF-6
- SFIFUEL PUMP
111 5 Author
: Date
:
2001 AVALON (RM808U)
FUEL PUMP
ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect a TOYOTA hand-held tester to the DLC3.
(b) Turn the ignition switch ON and TOYOTA hand-held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(c) Select the active test mode on the TOYOTA hand-held
tester.
(d) Please refer to the TOYOTA hand-held tester operator's
manual for further details.
(e) If you have no TOYOTA hand-held tester, connect the
positive (+) and negative (-) leads from the battery to the
fuel pump connector (See step 7).
(f) Check that there is pressure in the fuel inlet hose from the
fuel filter.
HINT:
If there is fuel pressure, you will hear the sound of fuel flowing.
If there is no pressure, check these parts:

Fusible link

Fuses

EFI main relay

Fuel pump

ECM

Wiring connections
(g) Turn the ignition switch to LOCK.
(h) Disconnect the TOYOTA hand- held tester from the
DLC3.
2. CHECK FUEL PRESSURE
(a) Check the battery positive voltage is above 12 V.
(b) Disconnect the negative (-) terminal cable from the bat-
tery.
(c) Purchase the new No.1 fuel pipe and take out the fuel
tube connector from its pipe.
Part No. 23801-20070

B09076
Fuel Hose
Clamp
B09077
B09078
SST
SST
Retainer
No.1 Fuel
Fuel tube
Connector (Hose)
Pipe
SST
(Hose)SST
- SFIFUEL PUMP
SF-7
111 6 Author
: Date
:
2001 AVALON (RM808U)
(d) Remove the fuel hose clamp.
(e) Disconnect the No.1 fuel pipe (fuel tube connector) from
the fuel filter outlet.
CAUTION:

Perform disconnecting operations of the fuel tube
connector (quick type) after observing the precau-
tions (See page SF-1).

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the engine compart-
ment.
(f) Install SST (pressure gauge) as shown in the illustration
by using SST and fuel tube connector.
SST 09268-41047, 09268-45014
(g) Wipe off any splattered gasoline.
(h) Reconnect the TOYOTA hand-held tester to the DLC3
(See step 1).
(i) Reconnect the negative (-) terminal cable to the battery.
(j) Measure the fuel pressure.
Fuel pressure:
301 - 347 kPa (3.1 - 3.5 kgf/cm
2, 44 - 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check these parts:

Fuel hoses and connections

Fuel pump

Fuel filter

Fuel pressure regulator
(k) Disconnect the TOYOTA hand- held tester from the
DLC3.
(l) Start the engine.
(m) Measure the fuel pressure at idle.
Fuel pressure:
301 - 347 kPa (3.1 - 3.5 kgf/cm
2, 44 - 50 psi)
(n) Stop the engine.
(o) Check that the fuel pressure remains as specified for 5
minutes after the engine has stopped.
Fuel pressure:
147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure
regulator and/or injectors.