2001 TOYOTA AVALON Service Repair Manual

EM0ZL-02
A10518
5 mm
Hexagon
Wrench
A07300
EM-72
- ENGINE MECHANICALENGINE UNIT
1056 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE BATTERY AND TRAY
2. REMOVE HOOD
3. REMOVE ENGINE FENDER APRON SEALS
4. DRAIN ENGINE COOLANT
5. DRAIN ENGINE OIL
6. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) Remove the V-bank cover.
7. DISCONNECT ACCELERATOR CABLE
8. REMOVE AIR CLEANER CAP ASSEMBLY AND AIR
CLEANER CASE
9. REMOVE CRUISE CONTROL ACTUATOR
10. REMOVE RADIATOR (See page CO-17)
11. REMOVE FRONT EXHAUST PIPE
(a) Remove the 2 bolts holding the support stay to the sup-
port bracket.
(b) Remove the 2 bolts and 2 compression springs holding
the front exhaust pipe to the center exhaust pipe.
(c) Remove the 4 nuts holding the front exhaust pipe to the
exhaust manifolds.
(d) Remove the front exhaust pipe and 3 gaskets.
12. DISCONNECT CONNECTORS, CABLE, CLAMPS AND
HOSES
(a) Remove the bolt and disconnect the ground strap from
the LH fender apron.
(b) Disconnect the 2 ground strap connectors from the RH
fender apron.
(c) Disconnect the ground cable from the A/T.
(d) Disconnect the engine wire protector clamp from the bat-
tery body bracket.
(e) Disconnect the engine wire clamp from the bracket on the
RH fender apron.
(f) Disconnect the brake booster vacuum hose from the
throttle body.
(g) Disconnect the engine coolant reservoir hose from the
water outlet.
(h) Disconnect the heater hose from the intake manifold.
(i) Disconnect the heater hose from the water inlet housing.

S04497
A10833
Bracket
P18775
A07430
- ENGINE MECHANICALENGINE UNIT
EM-73
1057 Author
: Date
:
2001 AVALON (RM808U)
(j) Disconnect the fuel inlet hose from the fuel filter.
CAUTION:
Perform disconnecting operation of the fuel tube connec-
tor (quick type) after observing the precautions (See page
SF-1).
(k) Disconnect the EVAP hose assembly from the pipe on the
emission control valve set.
(l) Disconnect the 2 vacuum hoses from the vacuum tank for
the ACIS.
13. DISCONNECT ENGINE WIRE FROM CABIN
(a) Remove the glove compartment.
(b) Disconnect the 5 ECM connectors.
(c) Disconnect the grommet from the cowl panel, and pull out
the engine wire.
14. REMOVE DRIVE SHAFTS (See page SA-16)
15. DISCONNECT A/C COMPRESSOR FROM ENGINE
(a) Disconnect the A/C compressor connector.
(b) Remove the drive belt.
(c) Remove the 5 bolts, nut and drive belt adjusting bar
bracket.
(d) Disconnect the A/C compressor from the engine.
16. DISCONNECT TRANSAXLE CONTROL CABLE FROM
TRANSAXLE
17. DISCONNECT PS PUMP FROM ENGINE
(a) Remove the 2 nuts, and disconnect the PS pressure tube
from the No.1 engine hanger.
(b) Loosen the 2 bolts, and remove the drive belt.
(c) Remove the 2 bolts, and disconnect the PS pump from
the engine.
18. DISCONNECT TRANSAXLE FROM LH ENGINE
MOUNTING INSULATOR
Remove the 4 bolts holding the transaxle to the mounting insu-
lator.

P18752
A07431
A07432
A07433
Engine
Hanger
EM-74
- ENGINE MECHANICALENGINE UNIT
1058 Author
: Date
:
2001 AVALON (RM808U)
19. DISCONNECT REAR ENGINE MOUNTING BRACKET
FROM FRONT FRAME
(a) Remove the 2 hole plugs.
(b) Remove the 4 nuts holding the front frame to the mount-
ing bracket.
20. REMOVE ENGINE MOUNTING ABSORBER
Remove the 4 bolts and mounting absorber.
21. DISCONNECT FRONT ENGINE MOUNTING INSULA-
TOR FROM FRONT FRAME
Remove the 3 bolts holding the mounting insulator to the front
frame.
22. ATTACH ENGINE SLING DEVICE TO ENGINE HANG-
ERS
(a) Install the No.2 engine hanger in the correct direction.
Part No.:
No.2 engine hanger12282-20020
Bolt90080-1 1331
Torque: 19.5 N´m (200 kgf´cm, 14 ft´lbf)
(b) Attach the sling device to the engine hangers.
CAUTION:
Do not attempt to hang the engine by hooking the chain to
any other part.

A07435
A07438
Lift
- ENGINE MECHANICALENGINE UNIT
EM-75
1059 Author
: Date
:
2001 AVALON (RM808U)
23. REMOVE ENGINE MOVING CONTROL ROD AND
NO.2 RH ENGINE MOUNTING BRACKET
Remove the 4 bolts, control rod and mounting bracket.
24. REMOVE ENGINE AND TRANSAXLE ASSEMBLY
FROM VEHICLE
(a) Lift the engine out of the vehicle slowly and carefully.
NOTICE:

Be careful not to hit the PNP switch.

Make sure the engine is clear of all wiring, hoses and
cables.
(b) Place the engine and transaxle assembly onto the stand.
25. REMOVE FRONT ENGINE MOUNTING INSULATOR
FROM ENGINE
Remove the 4 bolts and mounting insulator.
26. REMOVE REAR ENGINE MOUNTING INSULATOR
AND BRACKET ASSEMBLY FROM ENGINE
Remove the 4 bolts, the mounting insulator and bracket assem-
bly.
27. SEPARATE ENGINE AND TRANSAXLE

EM0ZR-02
A10836
 Gasket
 Non-reusable part
N´m (kgf´cm, ft´lbf) : Specified torque Gasket
 Bracket
Front Exhaust Pipe Heat Insulator
Center Exhaust Pipe Gasket Heat Insulator
Heated Oxygen Sensor
(Bank 1 Sensor 2)Tailpipe
Ring Ring
33 (330, 24)
Heat Insulator Heated Oxygen Sensor (Bank 1 Sensor 2)

Before installing the oxygen sensor, twist
the sensor wire counterclockwise 3 and
1/2 turns.
If it is twisted, remove the oxygen sensor
and reinstall it.
After installing the sensor wire is not twisted.HINT:
43 (440, 32)
21 (210, 15)
62 (630, 46)
33 (330, 24)
44 (450, 33)
Stay
Pipe Support
Bracket
39 (400, 29)
22 (220,16)
Pipe Support
Bracket
33 (330, 24)
62 (630, 46)
43 (440, 32)
Compression Spring


Compression Spring
Damper
19 (190, 14)
Heat Insulator
No.1 Exhaust Pipe
Support Bracket
Type A
Type B
Ring
Pipe Support
Bracket
EM-1 10
- ENGINE MECHANICALEXHAUST SYSTEM
1094 Author
: Date
:
2001 AVALON (RM808U)
EXHAUST SYSTEM
COMPONENTS

EM0CF-02
EM-12
- ENGINE MECHANICALIDLE SPEED
996 Author
: Date
:
2001 AVALON (RM808U)
IDLE SPEED
INSPECTION
1. INITIAL CONDITIONS
(a) Engine at normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system connected
(d) All accessories switched OFF
(e) All vacuum lines properly connected
(f) SFI system wiring connectors fully plugged
(g) Ignition timing check correctly
(h) Transmission in neutral position
(i) Air conditioning switched OFF
2. CONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL (See page EM-10)
3. INSPECT IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90 seconds.
(b) Check the idle speed.
Idle speed: 650 ± 50 rpm
If the idle speed is not as specified, check the IAC valve and air intake system.
4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL

A10518
5 mm
Hexagon
Wrench
EM15O-01
A10838
TOYOTA
Hand-Held Tester
DLC3
A10536
Lead Wire
A07285
E1DLC1
TE1
DLC1SST
A05184
EM-10
- ENGINE MECHANICALIGNITION TIMING
994 Author
: Date
:
2001 AVALON (RM808U)
IGNITION TIMING
INSPECTION
1. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) Remove the V-bank cover.
2. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
3. CONNECT TOYOTA HAND-HELD TESTER OR OBDII
SCAN TOOL
(a) Connect the TOYOTA hand-held tester or OBDII scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand-held tester or OBDII
scan tool operator's manual for further details.
4. CONNECT TIMING LIGHT TO ENGINE
Connect the clip of a timing light to the lead wire as shown.
5. CHECK IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90 se-
conds.
(b) Check the idle speed.
Idle speed: 650 ± 50 rpm
6. INSPECT IGNITION TIMING
(a) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
(b) Using a timing light, check the ignition timing.
Ignition timing: 8 - 12° BTDC @ idle
(Transmission in neutral position)
(c) Remove the SST from the DLC1.
SST 09843-18020

- ENGINE MECHANICALIGNITION TIMING
EM-1 1
995 Author
: Date
:
2001 AVALON (RM808U)
7. FURTHER CHECK IGNITION TIMING
Ignition timing: 10 - 25° BTDC @ idle
(Transmission in neutral position)
HINT:
The timing mark moves in a range between 10° and 25°.
8. DISCONNECT TIMING LIGHT FROM ENGINE
9. DISCONNECT TOYOTA HAND- HELD TESTER OR
OBDII SCAN TOOL
10. REINSTALL V-BANK COVER
(a) Using a 5 mm hexagon wrench, install the V-bank cover
with the 3 cap nuts.
(b) Press down the V-bank cover fastener.