2001 TOYOTA AVALON engine coolant

P12982
Length = 240 mm (9.45 in.)
Join
Line
Join
Line
Length = 460 mm
(18.11 in.)
A04693
SST
P18816
- ENGINE MECHANICALTIMING BELT
EM-25
1009 Author
: Date
:
2001 AVALON (RM808U)
14. INSTALL NO.1 TIMING BELT COVER
(a) Check that the timing belt cover gaskets have cracks or
peeling, etc.
If the gasket has cracks or peeling, etc., replace it using these
steps:

Using a screwdriver and gasket scraper, remove all
the old gasket material.

Thoroughly clean all components to remove all the
loose material.

Remove the backing paper from a new gasket and
install the gasket evenly to the part of the timing belt
cover shaded black in the illustration.
NOTICE:
When joining 2 gaskets, do not leave a gap between them.
Cut off any excess gasket.

After installing the gasket, press down on it so that
the adhesive firmly sticks to the timing belt cover.
(b) Install the timing belt cover with the 4 bolts.
Torque: 8.5 N´m (85 kgf´cm, 74 in.´lbf)
15. INSTALL CRANKSHAFT PULLEY
(a) Align the pulley set key with the key groove of the pulley,
and slide on the pulley.
(b) Using SST, install the pulley bolt.
SST 09213-54015 (91651-60855), 09330-00021
Torque: 215 N´m (2,200 kgf´cm, 159 ft´lbf)
16. INSTALL NO.2 GENERATOR BRACKET
Install the generator bracket with the pivot bolt and nut. Do not
tighten the bolt yet.
Torque: (Nut): 28 N´m (290 kgf´cm, 21 ft´lbf)
17. INSTALL NO.2 RH ENGINE MOUNTING BRACKET
AND ENGINE MOVING CONTROL ROD
(See page EM-77)
18. CONNECT GROUND STRAP CONNECTORS
19. CONNECT ENGINE COOLANT RESERVOIR HOSE TO
WATER OUTLET
20. INSTALL PS PUMP DRIVE BELT
21. INSTALL GENERATOR DRIVE BELT
(See page CH-16)
22. INSTALL RH FENDER APRON SEAL
23. INSTALL RH FRONT WHEEL
24. VEHICLE ROAD TEST
Check for abnormal noise, shock, slippage, correct shift points
and smoothly operation.

EM03Z-03
P18754
P18816
P18817
SST
P18819
SST
- ENGINE MECHANICALTIMING BELT
EM-15
999 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE RH FRONT WHEEL
2. REMOVE RH FENDER APRON SEAL
3. REMOVE GENERATOR DRIVE BELT
(See page CH-6)
4. REMOVE PS PUMP DRIVE BELT
Loosen the 2 bolts, and remove the drive belt.
5. DISCONNECT ENGINE COOLANT RESERVOIR HOSE
FROM WATER OUTLET
6. DISCONNECT GROUND STRAP CONNECTORS
7. REMOVE ENGINE MOVING CONTROL ROD AND
NO.2 RH ENGINE MOUNTING BRACKET
(See page EM-72)
8. REMOVE NO.2 GENERATOR BRACKET
(a) Loosen the generator pivot bolt.
(b) Remove the nut and bracket.
9. REMOVE CRANKSHAFT PULLEY
(a) Using SST, remove the pulley bolt.
SST 09213-54015 (91651-60855), 09330-00021
(b) Using SST, remove the pulley.
SST 09950-50012 (09951-05010, 09952-05010,
09953-05010, 09953-05020, 09954-05020)

EM03V-03
P18805
A05273
RH EX
RH IN
LH IN
LH EX 3 3
11Front
2266 EM-4
- ENGINE MECHANICALVALVE CLEARANCE
988 Author
: Date
:
2001 AVALON (RM808U)
VALVE CLEARANCE
INSPECTION
HINT:
Inspect and adjust the valve clearance when the engine is cold.
1. REMOVE RH FENDER APRON SEAL
2. DRAIN ENGINE COOLANT
3. 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.
4. REMOVE AIR INTAKE CHAMBER ASSEMBLY (See
page EM-31)
5. REMOVE IGNITION COILS
6. DISCONNECT UPPER RADIATOR HOSE FROM WA-
TER OUTLET
7. REMOVE CYLINDER HEAD COVERS
(See page EM-31)
8. SET NO.1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley, and align its groove with the
timing mark º0º of the No.1 timing belt cover.
(b) Check that the valve lifters on the No.1 (IN and EX) are
loose.
If not, turn the crankshaft 1 revolution (360°) and align the mark
as above.
9. INSPECT VALVE CLEARANCE
(a) Check only those valves indicated in the illustration.
(1) Using a feeler gauge, measure the clearance be-
tween the valve lifter and camshaft.
(2) Record out of specification valve clearance mea-
surements. They will be used later to determine the
required replacement adjusting shim.
Valve clearance (Cold):
Intake0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust0.25 - 0.35 mm (0.010 - 0.014 in.)

P12979
SST (A)
SST (B)
- ENGINE MECHANICALVALVE CLEARANCE
EM-7
991 Author
: Date
:
2001 AVALON (RM808U)
(c) Install a new adjusting shim.
(1) Place a new adjusting shim on the valve lifter, with
imprinted numbers facing down.
(2) Press down the valve lifter with SST (A), and re-
move SST (B).
SST 09248-55040 (09248-05410, 09248-05420)
(d) Recheck the valve clearance.
11. REINSTALL CYLINDER HEAD COVERS
(See page EM-59)
12. CONNECT UPPER RADIATOR HOSE TO WATER OUT-
LET
13. REINSTALL IGNITION COILS
14. REINSTALL AIR INTAKE CHAMBER ASSEMBLY (See
page EM-59)
15. INSTALL 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.
16. REFILL WITH ENGINE COOLANT
17. START ENGINE AND CHECK FOR LEAKS
18. REINSTALL RH FENDER APRON SEAL

DTC No.
Indicates the diagnostic trouble code.

Page or Instructions
Indicates the page where the inspection procedure
for each circuit is to be found, or gives instructions
for checking and repairs.

Detection Item
Indicates the system of the problem or
contents of the problem.
Trouble Area
Indicates the suspect area of the
problem.
Mass Air Flow Circuit MalfunctionDetection Item

Open or short in mass air flow meter circuit

Mass air flow meter

ECM DTC No.
(See page)Trouble AreaMIL* MemoryP0100
(DI-24)
P0101
(DI-28)
P0115
(DI-33)
Open or short in intake air temp. sensor
circuit

Intake air temp. sensor

ECM Intake Air Temp. Circuit
Malfunction P0110
(DI-29)

Open or short in engine coolant temp. sensor circuit

Engine coolant temp. sensor

ECM
Throttle/ Pedal Position Sensor/Switch
ºAº Circuit MalfunctionEngine Coolant Temp.
Circuit Malfunction

Open or short in throttle position sensor circuit

Throttle position sensor

ECM
DTC CHART (SAE Controlled)
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument or other
factors.
If a malfunction code is displayed during the DTC check mode, check the circuit for that code listed in the table
below. For details of each code, turn to the page referred to under the ºSee pageº for the respective ºDTC No.º
in the DTC chart.
Mass Air Flow Circuit
Range/ Performance Problem
Mass air flow meter

Throttle position sensor Throttle/ Pedal Position Sensor/ Switch
ºAº Circuit Range / Performance Prob-
lem P0116
(DI-37)Engine Coolant Temp.
Circuit Range/ Performance Problem
Engine coolant temp. sensor

Cooling system
IN-26- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
26 Author
: Date
:
2001 AVALON (RM808U)
4. DIAGNOSTIC TROUBLE CODE CHART
The inspection procedure is shown in the table below. This table permits efficient and accurate troubleshoot-
ing using the diagnostic trouble codes displayed in the diagnostic trouble code check. Proceed with trouble-
shooting in accordance with the inspection procedure given in the diagnostic chart corresponding to the
diagnostic trouble codes displayed. The engine diagnostic trouble code chart is shown below as an example.

IN0CI-02
IN-40
- INTRODUCTIONTERMS
40 Author
: Date
:
2001 AVALON (RM808U)
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE-J1930 terms and abbreviations used in this manual in compliance with SAE rec-
ommendations, as well as their TOYOTA equivalents.
SAE
ABBREVIATIONSSAE TERMSTOYOTA TERMS
( )--ABBREVIATIONS
A/CAir ConditioningAir Conditioner
ACLAir CleanerAir Cleaner, A/CL
AIRSecondary Air InjectionAir Injection (AI)
APAccelerator Pedal-
B+Battery Positive Voltage+B, Battery Voltage
BAROBarometric PressureHAC
CACCharge Air CoolerIntercooler
CARBCarburetorCarburetor
CFIContinuous Fuel Injection-
CKPCrankshaft PositionCrank Angle
CLClosed LoopClosed Loop
CMPCamshaft PositionCam Angle
CPPClutch Pedal Position-
CTOXContinuous Trap Oxidizer-
CTPClosed Throttle PositionLL ON, Idle ON
DFIDirect Fuel Injection (Diesel)Direct Injection (DI)
DIDistributor Ignition-
DLC1
DLC2
DLC3Data Link Connector 1
Data Link Connector 2
Data Link Connector 31: Check Connector
2: Total Diagnosis Comunication Link (TDCL)
3: OBD II Diagnostic Connector
DTCDiagnostic Trouble CodeDiagnostic Code
DTMDiagnostic Test Mode-
ECLEngine Control Level-
ECMEngine Control ModuleEngine ECU (Electronic Control Unit)
ECTEngine Coolant TemperatureCoolant Temperature, Water Temperature (THW)
EEPROMElectrically Erasable Programmable Read Only Memory
Electrically Erasable Programmable Read Only Memory
(EEPROM),
Erasable Programmable Read Only Memory (EPROM)
EFEEarly Fuel EvaporationCold Mixture Heater (CMH), Heat Control Valve (HCV)
EGRExhaust Gas RecirculationExhaust Gas Recirculation (EGR)
EIElectronic IgnitionTOYOTA Distributorless Ignition (TDI)
EMEngine ModificationEngine Modification (EM)
EPROMErasable Programmable Read Only MemoryProgrammable Read Only Memory (PROM)
EVAPEvaporative EmissionEvaporative Emission Control (EVAP)
FCFan Control-
FEEPROMFlash Electrically Erasable Programmable
Read Only Memory-
FEPROMFlash Erasable Programmable Read Only Memory-
FFFlexible Fuel-
FPFuel PumpFuel Pump
GENGeneratorAlternator
GNDGroundGround (GND)

MA01M-02
P00495
Inside Outside
- MAINTENANCEENGINE
MA-5
47 Author
: Date
:
2001 AVALON (RM808U)
ENGINE
INSPECTION
HINT:
Inspect these items when the engine is cold.
1. REPLACE TIMING BELT (See page EM-15)
2. INSPECT DRIVE BELTS
(See pages CH-1, SR-3 and AC-17)
3. REPLACE SPARK PLUGS (See page IG-1)
4. INSPECT AIR FILTER
(a) Visually check that the air filter is not excessively dirty or
oily.
(b) Clean the air filter with compressed air.
First blow from the inside thoroughly, then blow off the
outside of the air filter.
5. REPLACE AIR FILTER
Replace the air filter with a new one.
6. REPLACE ENGINE OIL AND OIL FILTER
(See page LU-3)
7. REPLACE ENGINE COOLANT (See page CO-2)
8. REPLACE GASKET IN FUEL TANK CAP
(See page EC-6)
9. INSPECT FUEL LINES AND CONNECTIONS
(See page EC-6)
10. INSPECT EXHAUST PIPES AND MOUNTINGS
(See page EC-14)
11. ADJUST VALVE CLEARANCE (See page EM-4)

MA003-12
MA-4
- MAINTENANCEUNDER HOOD
46 Author
: Date
:
2001 AVALON (RM808U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item an cause the engine to run poorly and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
Check that the coolant level is between the ºFULLº and ºLOWº lines on the see-through reservoir.
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not blocked with leaves, dirt or bugs.
(b) Check the hoses for cracks, kinks, rot or loose connections.
5. BATTERY ELECTROLYTE LEVEL
Check that the electrolyte level of all battery cells is between the upper and lower level lines on the case.
6. BRAKE FLUID LEVEL
Check that the brake fluid level is near the upper level line on the see-through reservoirs.
7. ENGINE DRIVE BELTS
Check drive belt for fraying, cracks, wear or oiliness.
8. ENGINE OIL LEVEL
Check the level on the dipstick with the engine turned off.
9. POWER STEERING FLUID LEVEL

Check the level.

The level should be in the ºHOTº or ºCOLDº range depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
(a) Park the vehicle on a level surface.
(b) With the engine idling and the parking brake applied, shift the selector into all positions from ºPº to ºLº,
and then shift into ºPº position.
(c) Pull out the dipstick and wipe off the fluid with a clean rag. Re-insert the dipstick and check that the
fluid level is in the ºHOTº range.
(d) Do this check with the fluid at normal driving temperature (70 - 80°C, 158 - 176°F).
HINT:
Wait until the engine cools down (approx. 30 min.) before checking the fluid level after extended driving at
high speeds, in hot weather, in heavy traffic or pulling a trailer.
11. EXHAUST SYSTEM
If any change in the sound of the exhaust or smell of the exhaust fumes is noticed, have the cause located
and corrected.