Toyota Highlander Service Manual: Brake system
PRECAUTION
NOTICE:
- Care must be taken to replace each part properly as it could affect
the performance of the brake
system and result in a driving hazard. Replace the parts with parts having
the same part number
or equivalent.
- It is very important to keep parts and the area clean when repairing
the brake system.
- If the vehicle is equipped with a mobile communication system, refer
to the precaution in the
INTRODUCTION section.
PROBLEM SYMPTOMS TABLE
HINT:
Refer to the table below to help find the cause of the problem. The numbers
indicate the priority of the possible
cause of problem. Check each part in order. If necessary, replace these parts.
Symptom |
Suspected Area |
Low pedal or spongy pedal |
- Fluid leaks in brake system
- Air in brake system
- Piston seals (Worn or damaged)
- Master cylinder (Faulty)
- Booster push rod (Out of adjustment
|
Brake drag |
- Brake pedal free play (Minimal)
- Parking brake pedal travel (Out of adjustment)
- Parking brake wire (Sticking)
- Parking brake shoe clearance (Out of adjustment)
- Pad (Cracked or distorted)
- Piston (Stuck)
- Piston (Frozen)
- Booster push rod (Out of adjustment)
- Vacuum leaks in booster system
- Master cylinder (Faulty)
|
Brake pull |
- Piston (Stuck)
- Pad (Oily)
- Piston (Frozen)
- Disc (Scored)
- Pad (Cracked or distorted)
|
Hard pedal but brake inefficient |
- Fluid leaks in brake system
- Air in brake system
- Pad (Worn)
- Pad (Cracked or distorted)
- Pad (Oily)
- Pad (Glanzed)
- Disc (Scored)
- Booster push rod (Out of adjustment)
- Vacuum leaks in booster system
|
Brake noise |
- Pad (Cracked or distorted)
- Installation bolt (Loose)
- Disc (Scored)
- Pad support plate (Loose)
- Sliding pin (Worn)
- Pad (Dirty)
- Pad (Glanzed)
- Anti-squeal shim (Damaged)
|
BLEEDING
HINT:
If any work is performed on the brake system or if air in the brake lines is
suspected, bleed the air out of the
brake system.
NOTICE:
Wash brake fluid off immediately if it ad ...
More about Toyota Highlander:
Vehicle lift and support locations
1. NOTICE ABOUT VEHICLE CONDITION WHEN JACKING UP THE VEHICLE
The vehicle must be unloaded before jacking up the vehicle. Never
jack up/lift up a heavily loaded vehicle.
When removing heavy equipment such as the engine and transmission,
the center of gravity of the
vehicle ...
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