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:
Problem symptoms table
HINT:
Before inspecting the suspected areas listed in the table
below, check the fuse and relay.
Before inspecting the suspected areas listed in the table
below, check for DTCs.
Methods used to verify the cause of the problem are listed
in order of probability in the ...
Components
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE FRONT BUMPER ASSEMBLY
3. REMOVE FOG LIGHT ASSEMBLY
Disengage the 2 claws
Disengage the 2 pins and remove the fog light
assembly.
DISASSEMBLY
1. REMOVE FOG LIGHT BULB
Turn in the dir ...
Removal
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
(See page EM-26)
2. REMOVE FRONT DRIVE SHAFT ASSEMBLY LH
HINT:
(See page DS-6)
3. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH
HINT:
(See page DS-6)
4. REMOVE TRANSMISSION CONTROL CABLE CLAMP
(a) Remove the bolt and the transmission control cable
cla ...
