| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VIXK |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: BRAKE SYSTEM (OTHER): BRAKE SYSTEM: PROBLEM SYMPTOMS TABLE; 2016 - 2020 MY Sienna [12/2015 - ] | ||
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Brake System
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Low or spongy pedal |
Fluid leaks in brake system |
- |
|
Air in brake system |
|
|
|
Piston seals (Worn or damaged) (Front) |
|
|
|
Piston seals (Worn or damaged) (Rear) |
|
|
|
Master cylinder (Faulty) |
|
|
|
Booster push rod (Adjustment necessary) |
|
|
|
Brake drag |
Brake pedal free play (Insufficient) |
|
|
Parking brake pedal travel (Out of adjustment) |
|
|
|
Parking brake cable (Sticking) |
|
|
|
Parking brake shoe clearance (Out of adjustment) |
|
|
|
Pad (Cracked or distorted) (Front) |
|
|
|
Pad (Cracked or distorted) (Rear) |
|
|
|
Piston (Stuck) (Front) |
|
|
|
Piston (Stuck) (Rear) |
|
|
|
Piston (Seized) (Front) |
|
|
|
Piston (Seized) (Rear) |
|
|
|
Vacuum leaks in booster system |
|
|
|
Master cylinder (Faulty) |
|
|
|
Booster push rod (Adjustment necessary) |
|
|
|
Brake pull |
Piston (Stuck) (Front) |
|
|
Piston (Stuck) (Rear) |
|
|
|
Pad (Oily) (Front) |
|
|
|
Pad (Oily) (Rear) |
|
|
|
Piston (Seized) (Front) |
|
|
|
Piston (Seized) (Rear) |
|
|
|
Disc (Scored) (Front) |
|
|
|
Disc (Scored) (Rear) |
|
|
|
Pad (Cracked or distorted) (Front) |
|
|
|
Pad (Cracked or distorted) (Rear) |
|
|
|
Hard pedal but brake inefficient |
Fluid leaks in brake system |
- |
|
Air in brake system |
|
|
|
Pad (Worn) (Front) |
|
|
|
Pad (Worn) (Rear) |
|
|
|
Pad (Cracked or distorted) (Front) |
|
|
|
Pad (Cracked or distorted) (Rear) |
|
|
|
Pad (Oily) (Front) |
|
|
|
Pad (Oily) (Rear) |
|
|
|
Pad (Glazed) (Front) |
|
|
|
Pad (Glazed) (Rear) |
|
|
|
Disc (Scored) (Front) |
|
|
|
Disc (Scored) (Rear) |
|
|
|
Vacuum leaks in booster system |
|
|
|
Noise from brakes |
Pad (Cracked or distorted) (Front) |
|
|
Pad (Cracked or distorted) (Rear) |
|
|
|
Cylinder mounting bolt (Loose) (Front) |
|
|
|
Cylinder mounting bolt (Loose) (Rear) |
|
|
|
Disc (Scored) (Front) |
|
|
|
Disc (Scored) (Rear) |
|
|
|
Pad support plate (Loose) (Front) |
|
|
|
Pad support plate (Loose) (Rear) |
|
|
|
Sliding pin (Worn) (Front) |
|
|
|
Sliding pin (Worn) (Rear) |
|
|
|
Pad (Dirty) (Front) |
|
|
|
Pad (Dirty) (Rear) |
|
|
|
Pad (Glazed) (Front) |
|
|
|
Pad (Glazed) (Rear) |
|
|
|
Anti-squeal shim (Damaged) (Front) |
|
|
|
Anti-squeal shim (Damaged) (Rear) |
|
![2016 - 2020 MY Sienna [12/2015 - ]; BRAKE SYSTEM (OTHER): BRAKE FLUID: BLEEDING](/t3Portal/stylegraphics/info.gif)
|
|