air condition TOYOTA AVENSIS 2003 Service Workshop Manual

1209I±02
±
EMISSION CONTROL EGR SYSTEM (1CD±FTV)
12±17
AVENSIS REPAIR MANUAL (RM1018E)
EGR SYSTEM (1CD±FTV)
ON±VEHICLE INSPECTION
HINT:
In a malfunction where the EGR system is always on, black smoke or white s\
moke may be emitted from the
exhaust pipe. If this occurs, inspect the EGR system as well.
1. INSPECT SEATING OF EGR VALVE
(a) Start the engine and check that it starts and runs at idle.
2. INSPECT HOT ENGINE CONDITION (WHEN USING HAND±HELD TESTER)
(a) Connect the hand±held tester to the DLC3.
(b) Start the engine and run it at idle.
(c) Select the ACTIVE TEST mode on the hand±held tester.
HINT:
Refer to the hand±held tester operator's manual for further details.
(d) Warm up the engine, the coolant temperature should be above 75
C (109
F) and bellow 90
C
(194
F).
(e) Check that the AFM reading is 5
ega
8 g/s with the engine idling.
(f) Operate the EGR valve with a hand±held tester. Regulate the valve opening angle to 0, and check that the AFM reading is 11
ega
17 g/s..
If the AFM reading is out of range in either (e) or (f), replace the\
EGR valve.
If the AFM is out of range in both (e) and (f), replace the air flow m\
eter (air cleaner) and check the EGR valve
operation again.
3. INSPECT HOT ENGINE CONDITION (WHEN NOT USING HAND±HELD TESTER)
(a) Install the vacuum gauge. (1) Using a 3±way connector, connect a vacuum gauge to the hose between the intake manifold andthe turbo pressure sensor.
(b) Warm up the engine, the coolant temperature should be above 75
C (109
F) and bellow 90
C
(194
F).
(c) Check that the vacuum gauge indicates about more than 2.5 kPa (19 mmHg 0.7 i\
n Hg).
(d) Stop the engine (IG OFF), remove the EGR valve connector, restart the engine, and check that load under idling is less than 2.5 kPa (19 mmHg 0.7 in Hg).
If the load pressure exceeds the above value, replace the EGR valve.
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1302G±03
A77131
Vacuum Gage
35.7 3700
100
Throttle Valve Open Position


Engine Speed [r/min.]
ON
OFF
A59594
SCV VSV
±
INTAKE INTAKE AIR CONTROL SYSTEM (1AZ±FSE)
13±1
AVENSIS REPAIR MANUAL (RM1018E)
INTAKE AIR CONTROL SYSTEM (1AZ±FSE)
ON±VEHICLE INSPECTION
1. INSPECT INTAKE AIR CONTROL SYSTEM
(a) Using a 3±way connector, connect vacuum gauge to the
actuator hose.
(b) Connect the hand±held tester to the DLC 3.
(c) Start the engine.
(d) Select the active test mode according to the message on the hand±held tester.
Vacuum:
VSV ONApprox. 27 kPa (200 mm Hg, 7.9 in. Hg)
VSV OFF0 kPa (0 mm Hg, 0 in. Hg.)
(e) Shift the transmission into the P range and control the ac-
celerator pedal.
(f) Check the VSV operation using the hang±held tester.
HINT:
The value in the illustration is only for reference; the throttle
valve may operate diversely depend on the engine running
condition.
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13030±02
A60591
A60592
A60593
Air
E G
A60594
Air
Filter Battery
E
±
INTAKE TURBO CHARGER SYSTEM (1CD±FTV)
13±7
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. VACUUM SWITCHING VALVE ASSY NO.1
(a) Inspect VSV for open circuit.
(1) Using an ohmmeter, check that the there is continu-ity between the terminals.
Resistance: 37 ± 44
at 20
C (68
F)
(b) Inspect VSV for ground. (1) Using an ohmmeter, check that there is no continu-ity between each terminal and the body.
Specified condition: No continuity
(c) Inspect VSV operation. (1) Check that air flows from port E to G.
(2) Apply battery voltage across the terminals.
(3) Check that air flows from port E to filter.
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1302Y±03
A77119
A77120
A77121
±
INTAKE TURBO CHARGER SYSTEM (1CD±FTV)
13±3
AVENSIS REPAIR MANUAL (RM1018E)
TURBO CHARGER SYSTEM (1CD±FTV)
PRECAUTION
1. MAINTENANCE PRECAUTION
(a) Do not stop the engine immediately after pulling a trailer,
or after driving at a high speed, or uphill drive. Let the en-
gine Idle for 20 to 120 seconds before turn the ignition
switch OFF (According as the driving condition, the idling
time varies).
(b) Avoid quick acceleration or quickly accelerating the en- gine RPM immediately after the starting a cold engine.
(c) If the turbocharger is found to be defective, it must be re-
placed. Also, inspect a source of the trouble including
conditions of the turbocharger that having been used. Re-
pair or replace the followings as necessary:
(1) Engine oil (Level and quality)
(2) Oil lines leading to the turbocharger
(d) Pay due attention when removing and reinstalling the turbocharger assembly. Do not drop, or do not give shock,
or do not grasp easily±deformed assembly parts such as
the actuator or push rod in removal and reinstallation.
(e) Before removal, cover both the intake and exhaust ports
and the oil inlet to prevent dirt or foreign objects from be-
ing introduced.
(f) If replacing the turbocharger, check for deposits in the oil pipe. If necessary, replace the oil pipe too.
(g) Thoroughly remove old gasket sticking to the lubrication oil pipe flange and the turbocharger oil flange.
(h) If replacing the bolt(s) or nut(s), must use Toyota genuine parts to prevent breakage or deformation.
(i) If replacing the turbocharger, put 20 cm
3 (1.2 cu in.) of
fresh oil into the turbocharger oil inlet hole and turn the tur-
bine wheel by hand to spread oil to the bearing.
(j) If overhauling or replacing the engine, cut the fuel supply after reassembly and crank the engine for 30 seconds to
feed oil throughout the engine then run the engine at idle
for 60 seconds.
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A31032
A32639
A77414
Straight
Pin
Key
Groove
14±174
±
ENGINE MECHANICAL CAMSHAFT (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(c) Put air pressure into the oil port with 150 kpa (1.5 kgf/cm2
21 psi), and turn the camshaft timing gear to the advance
direction (counterclockwise) by hand.
CAUTION:
Cover the paths with shop rag to avoid oil splashing.
HINT:
Depending on the air pressure, the camshaft timing gear will
turn to the advance angle side without applying force by hand.
Also, under the condition that the pressure can be hardly ap-
plied because of the air leakage from the port, there may be the
case that the lock pin could be hardly released.
(d) Remove the fringe bolt of camshaft timing gear.
NOTICE:

Be sure not to remove the other 4 bolts.

If reusing the camshaft timing gear, release the
straight pin lock first, and then install the gear.
13. INSTALL CAMSHAFT TIMING GEAR OR SPROCKET (LEADED GASOLINE) Torque: 54 N
m (551 kgf
cm, 40 ft
lbf)
14. INSTALL CAMSHAFT TIMING GEAR ASSY (UNLEADED GASOLINE)
(a) Put the camshaft timing gear and the camshaft together with the straight pin off the key groove.
(b) Turn the camshaft timing gear assembly to the left direc- tion (as shown in the illustration) while lightly pushing it to-
ward the camshaft. Push further at the position where the
pin gets into the groove.
NOTICE:
Be sure not to turn the camshaft timing gear to the retard
angle side (to the right direction).
(c) Check that there is no clearance between the gear's fringe and the camshaft.
(d) Tighten the fringe bolt with the camshaft timing gear fixed. Torque: 54 N
m (551 kgf
cm, 40 ft
lbf)
(e) Check that the camshaft timing gear can move to the re- tard angle side (to the right direction), and is locked at the
most retarded position.
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A77309
15973
481062
A56228
A77413
Advance
Side Port
A31032
14±242
±
ENGINE MECHANICAL CAMSHAFT (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
15. REMOVE CAMSHAFT
(a) Using several steps, loosen and remove the 10 camshaft bearing cap bolts uniformly in the sequence shown in the
illustration.
(b) Remove 5 camshaft bearings.
(c) Remove the camshaft.
(d) Tie the timing chain as shown in the illustration.
NOTICE:

Be careful not to drop anything inside the timing
chain cover.

Do not expose the chain to water, and prevents dust.
16. REMOVE CAMSHAFT TIMING GEAR ASSY
(a) Clamp the camshaft in a vise, and make sure the cam- shaft timing gear does not rotate.
(b) Cover all the oil ports with vinyl tape except an advance side port shown in the illustration.
(c) Put air pressure into the oil port with 150 kpa (1.5 kgf/cm
2
21 psi), and turn the camshaft timing gear to the advance
direction (counterclockwise) by hand.
CAUTION:
Cover the ports with shop rag to avoid oil splashing.
HINT:
Depending on the air pressure, the camshaft timing gear will
turn to the advance angle side without applying force by hand.
Also, under the condition that the pressure can be hardly ap-
plied because of the air leakage from the port, there may be the
case that the lock pin could be hardly released.
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A77319
N´m (kgf´cm, ft´lbf): Specified torque

Non±reusable part

Gasket
Cooler Bracket
(LHD (w/ Air Conditioner)
Steering Position Type)
113 (1,152, 83)
Cooler Refrigerant
Suction Hose No. 1
(LHD (w/ Air Conditioner)
Steering Position Type)
8.0 (82, 44 in.
lbf)
8.0 (82, 44 in.
lbf)
8.0 (82, 44 in.
lbf)
52 (530, 38)
Transverse Engine Engine
Mounting Insulator
Vane Pump Oil Reservoir Assy
Return Tube Sub±assy
52 (530, 38)
21 (214, 16)
9.8 (100, 7.2)
Generator ASSY
Exhaust Pipe Assy Front
43 (440, 32)

Gasket
43 (440, 32)
7.0 (71, 62 in.
lbf)
52 (530, 38)
7.0 (71, 62 in.
lbf)
Oil Reservoir Bracket No. 1
52 (530, 38)
52 (530, 38)
Engine Mounting Bracket No. 2 RH
7.0 (71, 62 in.
lbf)
5.0 (51, 44 in.
lbf)
5.0 (51, 44 in.
lbf)
52 (530, 38)
Exhaust Pipe Assy Center
52 (530, 38)
Vane Pump Assy
37 (377, 27)
14±136
±
ENGINE MECHANICAL CHAIN SUB±ASSY (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
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A77303
A77308
A77306
A77307
14±140
±
ENGINE MECHANICAL CHAIN SUB±ASSY (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
13. SEPARATE COOLER REFRIGERANT SUCTION HOSE NO.1 (LHD(W/ AIR CONDITIONER) STEERING
POSITION TYPE)
(a) Remove the 2 nuts and separate the suction hose.
14. SEPARATE VANE PUMP OIL RESERVOIR ASSY
NOTICE:
Do not disconnect the 2 hoses. 15. REMOVE OIL RESERVOIR BRACKET NO.1
(a) Remove the 2 bolts and the oil pump reservoir bracket No.1.
16. SEPARATE ENGINE WIRE
(a) Remove the bolt and separate the clamp and engine wire.
17. REMOVE ENGINE SERVICE COVER BRACKET RH (W/O AIR CONDITIONING)
(a) Remove the bolt and the engine service cover bracket RH. 18. REMOVE COOLER BRACKET (LHD(W/ AIRCONDITIONER) STEERING POSITION TYPE)
(a) Remove the bolt and cooler bracket.
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A77283
A77284
A77285
Unleaded Gasoline
Timing
Marks

eaded Gasoline
Timing
Marks
Timing
Marks
Timing
Marks
±
ENGINE MECHANICAL CHAIN SUB±ASSY (1AZ±FE)
14±141
AVENSIS REPAIR MANUAL (RM1018E)
19. REMOVE ENGINE SERVICE COVER BRACKET RH (RHD(W/ AIR CONDITIONER) STEERING
POSITION TYPE)
(a) Remove the bolt and the engine service cover bracket RH.
20. REMOVE IGNITION COIL ASSY
(a) Remove the 4 bolts and 4 ignition coils.
21. REMOVE CYLINDER HEAD COVER SUB±ASSY
(a) Disconnect the 2 PCV hoses from the cylinder head cov-er.
(b) Remove the 8 bolts and 2 nuts, and then remove the cylin- der head cover and gasket.
22. SET NO. 1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley, and align its timing notch with timing mark 0 of the timing chain cover.
(b) Check that the timing marks of the camshaft timing gear are aligned with the timing marks located on the No. 1 and
No. 2 bearing caps as shown in the illustration.
If not, turn the crankshaft 1 revolution (360
) and align the
marks as above.
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A77399
Seal Packing
A77400NutNut
A
BC
A A
AAB
14±152
±
ENGINE MECHANICALCHAIN SUB±ASSY(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(b)Apply seal packing to the 2 locations as shown in the il- lustration.
Seal Packing: Part No. 08826±00080 or equivalent
NOTICE:

Remove any oil from the contact surface.

Install the cylinder head cover within 5 minutes after
applying seal packing.

Do not expose the seal to engine oil 2 hours after
installing.
(c)install the cylinder head cover with the 8 bolts and 2 nuts. Torque:
Bolt A 11 N
m (112 kgf
cm, 8 ft
lbf)
Bolt B 14 N
m (143 kgf
cm, 10 ft
lbf)
Bolt C 21 N
m (214 kgf
cm, 15 ft
lbf)
Nut 11 N
m (112 kgf
cm, 8 ft
lbf)
55.INSTALL ENGINE SERVICE COVER BRACKET RH (W/O AIR CONDITIONING) Torque: 9.0 N
m (92 kgf
cm,80 in.
lbf)
56.INSTALL COOLER BRACKET (LHD(W/ AIR CONDITIONER) STEERING POSITION TYPE) Torque: 9.0 N
m (92 kgf
cm,80 in.
lbf)
57.INSTALL ENGINE SERVICE COVER BRACKET RH (RHD(W/ AIR CONDITIONER) STEERING
POSITION TYPE)
Torque: 9.0 N
m (92 kgf
cm,80 in.
lbf)
58.INSTALL ENGINE WIRE Torque: 7.0 N
m (71 kgf
cm,62 in.
lbf)
59.INSTALL OIL RESERVOIR BRACKET NO.1 Torque: 8.0 N
m (82 kgf
cm,71 in.
lbf)
60.IN STALL COOL ER REFRIGERANT SUCTION HOSE NO.1 (LHD(W/ AIR CONDITION ER)
STEERING POSITION TYPE)
61.INSTALL RETURN TUBE SUB±ASSY
Torque: 8.0 N
m (82 kgf
cm,71 in.
lbf)
62.INSTALL IGNITION COIL ASSY Torque: 9.0 N
m (92 kgf
cm,80 in.
lbf)
63.INSTALL VANE PUMP ASSY
Torque: 37 N
m (377 kgf
cm,27 ft
lbf)
64.INSTALL EXHAUST PIPE ASSY FRONT (See page 15±7)
65.INSTALL GENERATOR ASSY (See page 19±20)
66.INSTALL FAN AND GENERATOR V BELT (See page 14±105) SST 09249±63010
67. ADD ENGINE OIL
68. CHECK FOR ENGINE OIL LEAKS
69. INSTALL ENGINE COVER SUB±ASSY NO.1 Torque: 7.0 N
m (71 kgf
cm, 62 in.
lbf)
70. INSTALL FRONT WHEEL RH Torque: 103 N
m (1,050 kgf
cm, 76 ft
lbf)
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