Toyota Sienna Service Manual: Lubrication system
On-vehicle inspection
1. CHECK ENGINE OIL LEVEL
(a) Warm up the engine, stop it and wait 5 minutes. The oil level should be between the dipstick's low level mark and full level mark.
If the engine oil level is low, check for leakage and add oil up to the full level mark.
| NOTICE: Do not add engine oil above the full level mark. |
2. CHECK ENGINE OIL
(a) Check the engine oil for deterioration, water contamination, discoloring or thinning.
If the oil is bad, replace the engine oil and engine oil filter.
3. CHECK OIL PRESSURE
(a) Disconnect the oil pressure switch connector.
(b) Using a 24 mm deep socket wrench, remove the oil pressure switch.
(c) Install the oil pressure gauge with adapter.
(d) Warm up the engine.
(e) Check the oil pressure.
Standard oil pressure 
If the oil pressure is not as specified, check the oil pump (See page LU-13).
(f) Remove the oil pressure gauge.
(g) Apply adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive: Toyota Genuine Adhesive 1344, Three Bond 1344 or equivalent
(h) Using a 24 mm deep socket wrench, install the oil pressure switch.
Torque: 15 N*m (153 kgf*cm, 11 ft.*lbf)
| NOTICE: Do not start the engine within 1 hour after installation. |
(i) Connect the oil pressure switch connector.
(j) Check for engine oil leaks.
Oil and oil filter
COMPONENTS
REPLACEMENT
CAUTION:
Prolonged and repeated contact with engine oil will
result in the removal of natural oils from the skin,
leading to dryness, irritation and derma ...
Other materials:
Disassembly
1. INSPECT PACK CLEARANCE OF FORWARD
CLUTCH
HINT:
(See page AX-242)
2. REMOVE FORWARD MULTIPLE DISC CLUTCH DISC
(a) Using a screwdriver, remove the snap ring.
(b) Remove the flange, 5 discs and 5 plates from the
input shaft assembly.
3. REMOVE FORWARD CLUTCH RETURN SPRING
SUB-ASSEMB ...
Write vin
(a) The VIN writing process is shown in the flowchart
below. This process allows the VIN to be input into
the ECM. If the ECM is changed, or the ECM VIN
and Vehicle VIN do not match, the VIN can be
registered, or overwritten in the ECM by following
this procedure.
(b) Write VIN using the int ...
DTC check / clear
NOTICE:
All the stored DTCs and freeze frame data are erased if:
the ECM is changed from normal mode to check mode
or vice versa; or 2) the ignition switch is turned from ON
to ACC or off while in check mode.
Before changing modes, always check and make a note
of any DTCs and fr ...
