Toyota Sienna Service Manual: Brake
GENERAL MAINTENANCE
1. INSPECT BRAKE LINE PIPES AND HOSES
HINT:
Check the entire circumference and length of the brake hoses using a mirror as required in a well-lighted area.
Turn the front wheels fully right or left before checking the front brakes.
(a) Check all the brake lines and hoses for:
- Damage
- Wear
- Deformation
- Cracks
- Corrosion
- Leaks
- Bends
- Twists
(b) Check all the clamps for tightness and connections for leakage.
(c) Check that the hoses and lines are clear of sharp edges, moving parts and the exhaust system.
(d) Check that the lines are installed in grommets passing through the center of the grommets.
2. INSPECT FRONT BRAKE PADS AND DISCS
HINT:
(See page BR-26)
(a) If a squealing or scraping noise is heard from the brakes while driving, check the pad wear indicator.
If there are traces of the indicator contacting
3. INSPECT REAR BRAKE PADS AND DISCS
HINT:
(See page BR-32)
4. REMOVE REAR BRAKE LININGS AND DRUMS
HINT:
(See page BR-39)
Engine
GENERAL MAINTENANCE
HINT:
Inspect these items when the engine is cold.
1. INSPECT DRIVE BELT
HINT:
(See page EM-6)
2. REPLACE SPARK PLUGS
HINT:
(See page IG-8)
3. INSPECT AIR FILTER
(a) ...
Chassis
GENERAL MAINTENANCE
1. INSPECT STEERING LINKAGE
(a) Check the steering linkage for looseness or
damage.
Check that:
Tie rod ends do not have excessive play.
Dust seals and boots are not da ...
Other materials:
Reassembly
1. INSTALL INPUT SHAFT OIL SEAL RING
(a) Compress a new input shaft oil seal ring from both
sides to reduce dimension A.
Dimension A:
5 mm (0.197 in.)
(b) Coat the oil seal ring with ATF and install it to the
input shaft.
NOTICE:
Do not expand the end gap of the oil seal ring
too much. ...
Auto Up Operation does not Fully Close Power Window (Jam
Protection Function is Activated)
DESCRIPTION
If AUTO UP operation does not fully close the power window, the following
conditions may be the cause.
The reset of the power window motor has not been completed,
resulting in activation of the jam
protection function.
The memory of the power window switch misse ...
On-vehicle inspection
HINT:
The type of ignition switch on this model differs according to
the specifications of the vehicle. For the expressions used in
this section, refer to the "EXPRESSIONS OF IGNITION
SWITCH" precaution (See page ES-1).
1. CHECK AIR FUEL RATIO COMPENSATION SYSTEM
(a) Connect the inte ...
