Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Problem Symptoms Table

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.

Symptom

Suspected Area

See page

Low pedal or spongy pedal

Fluid leakage in brake system

-

Air in brake system (for Hydraulic brake booster)

Air in brake system (for Vacuum brake booster)

Piston seal (Worn or damaged)

Cylinder cup

Rear brake (Shoe clearance out of adjustment)

Brake master cylinder (Faulty) (for Vacuum brake booster)

Hydraulic brake booster (Faulty) (for Hydraulic brake booster)

Booster push rod (Out of adjustment) (for Vacuum brake booster)

Brake drag

Brake pedal free play (Minimum)

Parking brake pedal travel (Out of adjustment)

Parking brake wire (Sticking)

Rear brake (Shoe clearance out of adjustment)

Pad (Cracked or distorted)

Brake shoe (Cracked or distorted)

Front disc brake piston

Piston (Stuck)

Front disc brake piston (Frozen)

Piston (Frozen)

Tension or return spring (Faulty)

Booster push rod (Out of adjustment) (for Vacuum brake booster)

Booster system (Vacuum leakage) (for Vacuum brake booster)

Brake master cylinder (Faulty) (for Vacuum brake booster)

Hydraulic brake booster (Faulty)

Brake pull

Front disc brake piston (Stuck)

Piston (Stuck)

Pad (Oily)

Brake shoe (Oily)

Front disc brake piston (Frozen)

Piston (Frozen)

Front disc (Scored)

Pad (Cracked or distorted)

Brake shoe (Cracked or distorted)

Firm pedal but braking inefficient

Fluid leakage in brake system

-

Air in brake system (for Hydraulic brake booster)

Air in brake system (for Vacuum brake booster)

Pad (Worn)

Brake shoe (Worn)

Pad (Cracked or distorted)

Brake shoe (Cracked or distorted)

Rear brake (Shoe clearance out of adjustment)

Pad (Oily)

Brake shoe (Oily)

Pad (Glazed)

Brake shoe (Glazed)

Front disc (Scored)

Booster push rod (Out of adjustment) (for Vacuum brake booster)

Booster system (Vacuum leakage) (for Vacuum brake booster)

Noise from brakes

Pad (Cracked or distorted)

Brake shoe (Cracked or distorted)

Installation bolt (Loose)

Front disc (Scored)

Pad (Dirty)

Brake shoe (Dirty)

Pad (Glazed)

Brake shoe (Glazed)

Tension or return spring (Faulty)

Anti-squeal shim (Damaged)

Shoe hold-down spring (Damaged)

Precaution
PRECAUTION 1. Necessary care must be taken to replace each part properly as it could affect the brake system performance. This could cause driving hazards. Replace each part with an identical par ...

Front Brake
...

Other materials:

Inspection
INSPECTION PROCEDURE 1. INSPECT FRONT SUSPENSION LOWER ARM (a) Flip the ball joint stud back and forth 5 times, as shown in the illustration, before installing the nut. (b) Using a torque wrench, turn the nut continuously at a rate of 2 to 4 seconds per turn and take the torque reading on ...

Fuel Receiver Gauge Malfunction
DESCRIPTION The meter CPU uses the fuel sender gauge assembly to determine the level of the fuel in the fuel tank. The resistance of the fuel sender gauge will vary between approximately 13.5 Ω with the float at the full position, and 414.5 Ω with the float at the empty position. The meter ...

Front Radar Sensor Region Code Mismatch (C1A0A)
DESCRIPTION When the destination information in the millimeter wave radar sensor assembly and forward recognition camera do not match, DTC C1A0A is stored. DTC No. Detection Item DTC Detection Condition Trouble Area MIL C1A0 ...

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