2001 TOYOTA AVALON Service Repair Manual

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.

B09079
B09076
Fuel Hose
Clamp
S04508
Ohmmeter
4
5
S04509
4
5
Battery SF-8
- SFIFUEL PUMP
111 7 Author
: Date
:
2001 AVALON (RM808U)
(p) After checking fuel pressure, disconnect the negative (-)
terminal cable from the battery and carefully remove the
SST and fuel tube connector to prevent gasoline from
splashing.
SST 09268-41047, 09268-45014
(q) Reconnect the No.1 fuel pipe (fuel tube connector).
CAUTION:
Perform connecting operations of the tube connector
(quick type) after observing the precautions (See page
SF-1).
(r) Surely install the hose clamp to the fuel filter with ºclickº
sound.
(s) After installing the clamp, check that the clamp is fixed by
pulling up to the clamp.
(t) Reconnect the negative (-) terminal cable to the battery.
(u) Check for fuel leaks.
3. REMOVE REAR SEAT CUSHION
4. REMOVE FLOOR SERVICE HOLE COVER
5. DISCONNECT FUEL PUMP & SENDER GAUGE CON-
NECTOR
6. INSPECT FUEL PUMP RESISTANCE
Using an ohmmeter, measure the resistance between terminals
4 and 5.
Resistance: 0.2 - 3.0 W at 20°C (68°F)
If the resistance is not as specified, replace the fuel pump.
7. INSPECT FUEL PUMP OPERATION
Connect the positive (+) lead from the battery to terminal 4 of
the connector, and the negative (-) lead to terminal 5. Check
that the fuel pump operates.
NOTICE:

These tests must be done quickly (within 10 seconds)
to prevent the coil burning out.

Keep the fuel pump as far away from the battery as
possible.

Always do the switching at the battery side.

- SFIFUEL PUMP
SF-9
111 8 Author
: Date
:
2001 AVALON (RM808U)
If operation is not as specified, replace the fuel pump or lead
wire.
8. RECONNECT FUEL PUMP & SENDER GAUGE CON-
NECTOR
9. REINSTALL FLOOR SERVICE HOLE COVER
10. REINSTALL REAR SEAT CUSHION

SF0LH-01
SF-14
- SFIFUEL PUMP
1123 Author
: Date
:
2001 AVALON (RM808U)
REASSEMBLY
Installation is in the reverse order of disassembly (See page SF-12).

SF0LF-01
S04583
B02519
Vinyl Bag
- SFIFUEL PUMP
SF-1 1
1120 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
CAUTION:
Do not smoke or work near an open flame when working on
the fuel pump.
1. REMOVE REAR SEAT CUSHION
2. REMOVE FLOOR SERVICE HOLE COVER
(a) Take out the floor carpet.
(b) Remove the 5 screws and service hole cover.
HINT:
At the time of installation, please refer to the following items.
Check for fuel leakage.
3. DISCONNECT FUEL PUMP & SENDER GAUGE CON-
NECTOR
NOTICE:
Do not lift the fuel pump up with the wire harness picking.
4. REMOVE NO.1 FUEL TANK PROTECTOR
Remove the 2 bolts and No.1 fuel tank protector.
Torque: 4 N´m (40 kgf´cm, 35 in.´lbf)
5. DISCONNECT FUEL TUBE (FUEL TUBE CONNEC-
TOR)
CAUTION:

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

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the vehicle compart-
ment.
6. REMOVE FUEL PUMP ASSEMBLY FROM FUEL TANK
(a) Remove the 6 bolts and fuel tank vent tube set plate.
Torque: 4 N´m (40 kgf´cm, 35 in.´lbf)
(b) Pull out the fuel pump assembly.
(c) Remove the gasket from the pump assembly.
NOTICE:

Do not damage the fuel pump filter.

Be careful that the arm of the sender gauge should
not bent.
HINT:
At the time of installation, please refer to the following items.
Install a new gasket to the pump assembly.