2001 TOYOTA AVALON low oil pressure

A05225
EM0ZG-02
A05226
A05230
A05233
A05232
EM-42
- ENGINE MECHANICALCYLINDER HEAD
1026 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. CLEAN TOP SURFACES OF PISTONS AND CYL-
INDER BLOCK
(a) Turn the crankshaft, and bring each piston to top dead
center (TDC). Using a gasket scraper, remove all the car-
bon from the piston top surface.
(b) Using a gasket scraper, remove all the gasket material
from the cylinder block surface.
(c) Using compressed air, blow carbon and oil from the bolt
holes.
CAUTION:
Protect your eyes when using high pressure compressed
air.
2. REMOVE GASKET MATERIAL
Using a gasket scraper, remove all the gasket material from the
cylinder block contact surface.
NOTICE:
Be careful not to scratch the cylinder block contact sur-
face.
3. CLEAN COMBUSTION CHAMBERS
Using a wire brush, remove all the carbon from the combustion
chambers.
NOTICE:
Be careful not to scratch the cylinder block contact sur-
face.
4. CLEAN CYLINDER HEADS
Using a soft brush and solvent, thoroughly clean the cylinder
head.

A02338
5th4th3rd
2nd
6th
1st
A05064
1.27 mm
Hexagon
Wrench
A05065
A05066
1.27 mm
Hexagon
Wrench
- ENGINE MECHANICALTIMING BELT
EM-23
1007 Author
: Date
:
2001 AVALON (RM808U)
7. INSTALL TIMING BELT
NOTICE:
The engine should be cold.
(a) Remove any oil or water on the pulleys, and keep them
clean.
NOTICE:
Only wipe the pulleys; do not use any cleansing agent.
(b) Face the front mark on the timing belt forward.
(c) Align the installation mark on the timing belt with the tim-
ing mark of the crankshaft timing pulley.
(d) Align the installation marks on the timing belt with the tim-
ing marks of the camshaft timing pulleys.
(e) Install the timing belt in this order:
1st: Crankshaft timing pulley
2nd: Water pump pulley
3rd: LH camshaft timing pulley
4th: No.2 idler pulley
5th: RH camshaft timing pulley
6th: No.1 idler pulley
8. SET TIMING BELT TENSIONER
(a) Using a press, slowly press in the push rod using 981 -
9,807 N (100 - 1,000 kgf, 200 - 2,205 lbf) of pressure.
(b) Align the holes of the push rod and housing, pass a 1.27
mm hexagon wrench through the holes to keep the set-
ting position of the push rod.
(c) Release the press.
(d) Install the dust boot to the tensioner.
9. INSTALL TIMING BELT TENSIONER
(a) Temporarily install the tensioner with the 2 bolts.
(b) Alternately tighten the 2 bolts.
Torque: 27 N´m (280 kgf´cm, 20 ft´lbf)
(c) Remove the 1.27 mm hexagon wrench from the tension-
er.

IG0152
B06521
Ohmmeter
P14244
Ohmmeter
- IGNITIONIGNITION SYSTEM
IG-3
1246 Author
: Date
:
2001 AVALON (RM808U)
(f) Clean the spark plugs.
If the electrode has traces of wet carbon, allow it to dry and then
clean with a spark plug cleaner.
Air pressure: Below 588 kPa (6 kgf/cm
2, 85 psi)
Duration: 20 seconds or less
HINT:
If there are traces of oil, remove it with gasoline before using the
spark plug cleaner.
(g) Using a 16 mm plug wrench, install the 6 spark plugs.
Torque: 18 N´m (180 kgf´cm, 13 ft´lbf)
(h) Reinstall the 6 ignition coil (See page IG-5).
3. INSPECT IGNITION COILS (WITH IGNITERS)
(See step 1.)
4. INSPECT CAMSHAFT POSITION SENSORS
(a) Remove the V-bank cover.
(b) Remove the air cleaner hose w/ resonator.
(c) Disconnect the sensor connectors.
(d) Using an ohmmeter, measure the resistance between ter-
minals.
Resistance:
Cold835 - 1,400 W
Hot1,060 - 1,645 W
If the resistance is not as specified, replace the sensor.
(e) Reconnect the sensor connectors.
(f) Reinstall the air cleaner hose w/ resonator.
(g) Reinstall the V-bank cover.
5. INSPECT CRANKSHAFT POSITION SENSOR
(a) Remove the sensor (See page IG-9).
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance:
Cold1,630 - 2,740 W
Hot2,065 - 3,225 W
If the resistance is not as specified, replace the sensor.
(c) Reinstall the sensor (See page IG-9).

B00319
Recommended Viscosity (SAE):
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE10W-30
5W-30 PREFERRED°C °F
-20
-290
-1820
-740
460
1680
27100
38
LU0G0-02
B08674SST
B08675
Oil Pressure
Gauge
- LUBRICATIONOIL AND FILTER
LU-1
1226 Author
: Date
:
2001 AVALON (RM808U)
OIL AND FILTER
INSPECTION
1. CHECK ENGINE OIL QUALITY
Check the oil for deterioration, entry of water, discoloring or thin-
ning.
If the quality is visibly poor, replace the oil.
Oil grade:
API grade SJ, Energy-Conserving or ILSAC multi-
grade engine oil.
SAE 5W - 30 is the best choice for your vehicle, for
good fuel economy, and good starting in cold weath-
er.
2. CHECK ENGINE OIL LEVEL
After warm up the engine and then 5 minutes after the engine
stop, oil level should be between the low level and full level
marks on the dipstick.
If low, check for leakage and add oil up to the full level mark.
NOTICE:
Do not fill with engine oil above the full level mark.
3. REMOVE OIL PRESSURE SWITCH, AND INSTALL
OIL PRESSURE GAUGE
(a) Using SST, remove the oil pressure switch.
SST 09816-30010
(b) Install the oil pressure gauge.
4. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
5. CHECK OIL PRESSURE
Oil pressure:
At idle29 kPa (0.3 kgf/cm2, 4.3 psi) or more
At 3,000 rpm294 - 539 kPa (3.0 - 5.5 kgf/cm2, 43 - 78 psi)

MA001-12
- MAINTENANCEOUTSIDE VEHICLE
MA-1
43 Author
: Date
:
2001 AVALON (RM808U)
OUTSIDE VEHICLE
GENERAL MAINTENANCE
These are maintenance and inspection items which are considered to be the owner's responsibility.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.
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. TIRES
(a) Check the pressure with a gauge. If necessary, adjust.
(b) Check for cuts, damage or excessive wear.
3. WHEEL NUTS
When checking the tires, check the nuts for looseness or for missing nuts. If necessary, tighten them.
4. TIRE ROTATION
Check the owner's manual supplement in which the maintenance schedule is shown.
5. WINDSHIELD WIPER BLADES
Check for wear or cracks whenever they do not wipe clean. If necessary, replace.
6. FLUID LEAKS
(a) Check underneath for leaking fuel, oil, water or other fluid.
(b) If you smell gasoline fumes or notice any leak, have the cause found and corrected.
7. DOORS AND ENGINE HOOD
(a) Check that all doors including the trunk lid operate smoothly, and that all latches lock securely.
(b) Check that the engine hood secondary latch secures the hood from opening when the primary latch
is released.

SS0BM-04
- SERVICE SPECIFICATIONSAUTOMATIC TRANSAXLE
SS-25
141 Author
: Date
:
2001 AVALON (RM808U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Front side engine mounting insulator x Front frame assembly8082059
Rear engine mounting insulator x Front frame assembly6667048
LH transaxle mounting insulator x Front frame assembly8082059
Engine mounting insulator x Front frame assembly4849035
Transaxle x Engine 17 mm bolt
14 mm bolt66
48670
49048
35
Torque converter clutch x Drive plate4142030
Valve body x Transaxle case1111 08
Oil strainer x Valve body Bolt A
(See page AX-35) Bolt B10
11100
11 07
8
Oil pan x Transaxle case7.88069 in.´lbf
Oil pan drain plug4950036
Park/Neutral position switch x Transaxle case Bolt
Nut5.4
6.955
7048 in.´lbf
61 in.´lbf
Connector clamp x Valve body6.66758 in.´lbf
Manual valve body x Transaxle case1111 08
Line pressure test plug x Transaxle case7.58069 in.´lbf
Detent spring x Manual valve body1111 08
Oil pipe bracket x Transaxle case101007
Steering gear housing x Front frame assembly1811,850134
Stabilizer bar bracket x Front frame assembly1919514
Stabilizer bar link x Stabilizer bar3940029
Lower suspension arm x Lower ball joint1271,30094
Tie rod end x Steering knuckle4950036
Drive shaft lock nut2943,000217
Direct clutch speed sensor x Transaxle case1111 08
Exhaust manifold bracket x Transaxle case2020015
Exhaust manifold plate2020015
Front frame assembly x Body 19 mm bolt
14 mm bolt
Nut181
32
361,850
330
370134
24
27
Front exhaust pipe x Exhaust center pipe4344032
Exhaust manifold x Front exhaust pipe6263046
Exhaust front pipe support stay x Exhaust front pipe support bracket3333024
Starter x Torque converter clutch housing3940029
Transaxle control shaft lever x Park/neutral position switch1515011
Throttle cable adjusting nut1515011
Drive plate x Crankshaft8385061
Shift control cable x Transaxle control shaft lever1515011
Throttle cable retaining plate set bolt5.45548 in.´lbf
Shift solenoid valve No. 1, No. 2, SL, SLN x Valve body6.66758 in.´lbf
Front wheel nut1031,05076
Exhaust front pipe support bracket x Body2121015
PS reservoir pipe x Front frame101007

S05054
New Gasket
FI1654
Fulcrum Length
30 cm
SST
FI6372
CORRECT New O-Ring
Delivery Pipe
Injector Grommet
WRONG
B05295
O-Ring
Grommet
Spacer InsulatorDelivery Pipe
O-Ring
- SFISFI SYSTEM
SF-3
111 2 Author
: Date
:
2001 AVALON (RM808U)
(b) When connecting the union bolt on the high pressure pipe
union, observe the following procedures:
(1) Always use 2 new gaskets.
(2) Tighten the union bolt by hand.
(3) Tighten the union bolt to the specified torque.
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)
(c) When connecting the flare nut on the high pressure pipe
union, observe the following procedures:
(1) Apply a light coat of engine oil to the flare nut, and
tighten the flare nut by hand.
(2) Using SST, tighten the flare nut to specified torque.
SST 09023-12700
NOTICE:
Do not rotate the fuel pipe, when tightening the flare nut.
Torque: 28 N´m (285 kgf´cm, 21 ft´lbf)
HINT:
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
(d) Observe the following precautions when removing and
installing the injectors.
(1) Never reuse the O-ring.
(2) When placing a new O-ring on the injector, take
care not to damage it in any way.
(3) Coat a new O-ring with spindle oil or gasoline be-
fore installing-never use engine, gear or brake oil.
(e) Install the injector to the delivery pipe and intake manifold
as shown in the illustration.
(f) Observe these precautions when disconnecting the fuel
tube connector (quick type).
(1) Check if there is any dirt like mud on the pipe and
around the connector before disconnecting them
and clean the dirt away.
(2) Be sure to disconnect with hands.

R14662
Attachment
IN
OUT Pressure Feed Tube SST
Z15498
Oil
Reservoir
PS Vane
Pump PS Gear
SST Closed SR-6
- STEERINGPOWER STEERING FLUID
1469 Author
: Date
:
2001 AVALON (RM808U)
2. CHECK STEERING FLUID PRESSURE
(a) Disconnect the pressure feed tube (See page SR-27).
(b) Connect SST to pressure feed tubes, as shown in the il-
lustration below.
SST 09640- 10010 (09641- 01010, 09641- 01030,
09641-01060)
NOTICE:
Check that the valve of the SST is in the open position.
(c) Bleed the power steering system (See page SR-4).
(d) Start the engine and run it at idle.
(e) Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80 °C (176 °F)
(f) With the engine idling, close the valve of the SST and ob-
serve the reading on the SST.
Minimum fluid pressure:
7,845 kPa (80 kgf/cm
2, 1,138 psi)
NOTICE:

Do not keep the valve closed for more than 10 se-
conds.

Do not let the fluid temperature become too high.