Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 07 eecsy insp
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download insp documenatation <<
Text preview - extract from the document
EC-6
EMISSION CONTROL - EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EC0IA-01
INSPECTION
1. INSPECT LINES AND CONNECTORS
Visually check for loose connections, sharp bends or damage.
2. INSPECT FUEL TANK FILLER PIPE
Visually check for deformation, cracks or fuel leakage.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
Gasket
B01082
4. INSPECT EVAP SYSTEM LINE
Vacuum
Gauge (a) Warm up the engine and stop the engine.
Allow the engine to warm up to normal operating tempera-
ture.
(b) Install a vacuum gauge (EVAP control system test equip-
ment vacuum gauge) to the EVAP service port on the
purge line.
B06544
(c) TOYOTA Hand-Held Tester:
TOYOTA
Hand-Held Tester Forced driving of the VSV for the EVAP.
(1) Connect a TOYOTA hand-held tester to the DLC3.
(2) Start the engine.
(3) Push the TOYOTA hand-held tester main switch
ON.
(4) Use the ACTIVE TEST mode on the TOYOTA
hand-held tester to operate the VSV for the EVAP.
A01670
(d) If you have no TOYOTA Hand-Held Tester:
Forced driving of the VSV for the EVAP.
(1) Disconnect the VSV connector for the EVAP.
(2) Connect the positive (+) and negative (-) leads from
the battery to the VSV terminals for the EVAP.
(3) Start the engine.
Battery
B06548
2001 SIENNA (RM787U)
Author : Date : 1066
EC-7
EMISSION CONTROL - EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
(e) Check the vacuum at idle.
Vacuum:
Maintain at 0.368 - 19.713 in.Hg (5 - 268 in.Aq) for over
5 seconds
HINT:
If the vacuum does not change, you can conclude that the hose
connecting the VSV to the service port has come loose or is
blocked, or the VSV is malfunctioning.
B06545 (f) TOYOTA Hand-Held Tester:
Conclude forced driving of the VSV for the EVAP.
(1) Stop the engine.
(2) Disconnect the TOYOTA hand-held tester from the
DLC3.
(g) If you have no TOYOTA Hand-Held Tester:
Conclude forced driving of the VSV for the EVAP.
(1) Stop the engine.
(2) Disconnect the positive (+) and negative (-) leads
from the battery from the VSV terminals for the
EVAP.
(3) Connect the VSV connector for the EVAP.
(h) Disconnect the vacuum gauge from the EVAP service
port on the purge line.
(i) Connect a pressure gauge to the EVAP service port on
the purge line.
(j) Check the pressure.
Air Drain Hose (1) Close off the air drain hose at the marked position
of the canister with a hose clipper or similar instru-
ment.
Hose Clipper
B12647
(2) Add the pressure (13.5 - 15.5 in.Aq) from the EVAP
Pressure
Gauge service port.
Pressure:
2 minutes after the pressure is added, the gauge
should be over 7.7 - 8.8 in.Aq.
HINT:
If you can't add pressure, you can conclude that the hose con-
Pressure necting the VSVXcanisterXfuel tank has slipped off or the
B06546 VSV is open.
2001 SIENNA (RM787U)
Author : Date : 1067
EC-8
EMISSION CONTROL - EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
(3) Check if the pressure decreases when the fuel tank
Fuel Tank Cap
cap is removed while adding pressure.
HINT:
If the pressure does not decrease when the filler cap is re-
moved, then you can conclude that the hose connecting the
service port to the fuel tank is blocked, etc.
(k) Disconnect the pressure gauge from the EVAP service
port on the purge line.
B06547
5. CHECK AIRTIGHTNESS IN FUEL TANK AND FILLER
PIPE
(a) Disconnect the EVAP line hose from the charcoal canister
Air
side and then pressurize and make the internal pressure
in the fuel tank 4 kPa (41 gf/cm2, 0.58psi)
(b) Check that the internal pressure of the fuel tank can be
hold for 1 minute.
(c) Check the connected portions of each hose and pipe.
EVAP Line Hose B12648 (d) Check the installed parts on the fuel tank.
if there is no abnormality, replace the fuel tank and filler pipe.
(e) Reconnect the EVAP line hose to the charcoal canister.
6. INSPECT FUEL CUTOFF VALVE AND FILL CHECK
EVAP Line Hose
VALVE
(a) Disconnect the purge line hose and EVAP line hose front
the charcoal canister.
(b) Plug the cap to the air drain hose.
Plug Purge
(c) Pressurize 4 kPa (41 gf/cm2, 0.58psi) to the purge port
and check that there is ventilation through the EVAP line
Purge Port hose.
Line Hose
Air B12649 HINT:
In the condition that the fuel fuel is full, as the float valve of the
fill check valve is closed and has no ventilation, it is necessary
to check the fuel amount (volume).
(d) Check if there is any struck in the vent line hose and EVAP
line hose.
If there is no struck in hoses, replace the fuel cutoff valve and
fill check valve.
(e) Reconnect the purge line hose and EVAP line hose to the
charcoal canister.
2001 SIENNA (RM787U)
Author : Date : 1068
EC-9
EMISSION CONTROL - EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
7. CHECK AIR INLET LINE
Air Inlet Hose (a) Disconnect the air inlet line hose from the charcoal canis-
ter.
(b) Check that there is ventilation in the air inlet line.
(c) Reconnect the air inlet hose to the charcoal canister.
8. REMOVE CHARCOAL CANISTER ASSEMBLY
(a) Disconnect the VSV connector for the pressure switching
valve.
Air B12650 (b) Disconnect the vapor pressure sensor connector.
(c) Disconnect the fuel hose from the vapor pressure sensor.
(d) Disconnect the purge line hose, EVAP line hose and air
inlet line hose from the charcoal canister.
(e) Disconnect the vent line hose from the charcoal canister.
(1) Push the connector deep inside.
Push
(2) Pinch portion A.
Pinch (3) Pull out the connector.
(f) Remove the 3 charcoal canister mounting nuts.
(g) Remove the vapor pressure sensor mounting bolt.
A A (h) Remove the charcoal canister assembly.
Pinch
B01253
9. INSPECT CHARCOAL CANISTER
(a) VIsually check the charcoal canister for cracks or dam-
age.
B12651
Purge Port (b) Inspect the charcoal canister operation.
Cap (1) Plug th event port with the cap.
Air Drain Port (2) While holding the purge port closed, blow air (1.76
kPa, 18 gf/cm2, 0.26 psi) into the EVAP port and
check that air flows from the air drain port.
EVAP Port
Air B12652
2001 SIENNA (RM787U)
Author : Date : 1069
EC-10
EMISSION CONTROL - EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
Purge Port (3) While holding the purge port and the air drain port
Air Inlet Port
Cap closed, blow air (1.76kPa, 18 gf/cm2, 0.26 psi) into
the EVAP port and check that air does not flow from
Air Drain Port the air inlet port.
EVAP Port
Air B12653
Air Inlet Port (4) Apply vacuum (3.43 kPa, 25.7 mmHg, 1.01 in.Hg)
Cap to the purge port, check that the vacuum does not
decrease when the air inlet port is closed, and
check that the vacuum decreases when the air inlet
port is released.
Vacuum
B12654
(5) While holding the air inlet port closed, apply vacuum
Purge Port (3.43 kPa, 25.7 mmHg, 1.01 in.Hg) to the EVAP port
Air Inlet and check that air flows into the purge port.
Port If a problem is found, replace the charcoal canister.
(6) Remove the cap from the vent port.
10. INSPECT VSV FOR EVAP
(See page SF-68 )
Vacuum
EVAP Port 11. INSPECT VSV FOR CANISTER CLOSED VALVE (CCV)
B12655 (See page SF-73 )
12. INSPECT VSV FOR PRESSURE SWITCHING VALVE
(See page SF-75 )
13. INSPECT VAPOR PRESSURE SENSOR
(See page SF-77 )
14. REINSTALL CHARCOAL CANISTER ASSEMBLY
2001 SIENNA (RM787U)
Author : Date : 1070
◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo