Condition | Possible Cause | Action |
---|---|---|
Not enough braking force
|
Brake fluid leakage from brake lines
|
Locate leaking point and repair.
|
Brake disc or pads stained with oil
|
Clean or replace.
|
|
Overheated brakes
|
Determine cause and repair.
|
|
Poor contact of shoes on brake drum
|
Repair for proper contact.
|
|
Brake shoes linings stained with oil or wet with water
|
Replace.
|
|
Badly worn brake shoe linings
|
Replace.
|
|
Defective wheel cylinders
|
Repair or replace.
|
|
Malfunctioning caliper assembly
|
Repair or replace.
|
|
Air in system
|
Bleed system.
|
|
Maladjusted sensor spring length of LSPV
|
Check or adjust.
|
|
Broken sensor spring of LSPV
|
Replace.
|
|
Defective cooler of LSPV
|
Replace.
|
|
Malfunctioning ABS (Antilock brake system), if equipped
|
Check system and replace as necessary.
|
|
Brake pull (Brakes not working in unison)
|
Pad and/or shoe linings are wet with water or stained with oil in some brakes
|
Replace.
|
Drum-to-shoe clearance out of adjustment in some brakes (Malfunctioning auto adjusting mechanism)
|
Check for inoperative auto adjusting mechanism.
|
|
Disc and/or drum is out of round in some brakes
|
Replace.
|
|
Wheel tires are inflated unequally
|
Inflate equally.
|
|
Malfunction in wheel cylinders
|
Repair or replace.
|
|
Disturbed front wheel alignment
|
Adjust as prescribed.
|
|
Unmatched tires on same axle
|
Tires with approximately the same amount of tread should be used on the same axle.
|
|
Restricted brake tubes or hoses
|
Check for soft hoses and damaged lines. Replace with new hoses and new double-walled steel brake tubing.
|
|
Malfunctioning caliper assembly
|
Check for stuck or sluggish pistons and proper lubrication of caliper slide bush.
|
|
Loose suspension parts
|
Caliper should slide.
Check and torque bolts to specifications.
|
|
Loose calipers
|
Check and torque bolts to specifications.
|
|
Noise (high pitched squeak without brake applied)
|
Front lining worn out
|
Replace brake pads.
|
Rear brake locked prematurely
|
Maladjusted sensor spring length of LSPV
|
Check or adjust.
|
Malfunction LSPV assembly
|
Replace assembly.
|
|
Brake locked (For vehicle equipped with ABS)
|
Malfunctioning ABS, if equipped
|
Check system referring to
ABS Check
.
|
Excessive pedal travel (Pedal stroke too large)
|
Partial brake system failure
|
Check brake systems and repair as necessary.
|
Insufficient fluid in master cylinder reservoirs
|
Fill reservoirs with approved brake fluid.
|
|
Air in system (soft / spongy pedal)
|
Bleed system.
|
|
Rear brake system not adjusted (malfunctioning auto adjusting mechanism)
|
Repair auto adjusting mechanism.
|
|
Bent brake shoes
|
Replace brake shoes.
|
|
Worn rear brake shoes
|
Replace brake shoes.
|
|
Dragging brakes (A very light drag is present in all brakes immediately after pedal is released)
|
Master cylinder pistons not returning correctly
|
Replace master cylinder.
|
Restricted brake tubes or hoses
|
Check for soft hoses or damaged tubes and replace with new hoses and/or new brake tubes.
|
|
Incorrect parking brake adjustment on rear brakes
|
Check and adjust to correct specifications.
|
|
Weakened or broken return springs in the brake
|
Replace.
|
|
Sluggish parking brake cables or linkage
|
Repair or replace.
|
|
Wheel cylinder or caliper piston sticking
|
Repair as necessary.
|
|
Malfunctioning ABS, if equipped with ABS
|
Check system and replace as necessary.
|
|
Pedal pulsation (Pedal pulsates when depressed for braking)
|
Damaged or loose wheel bearings
|
Replace wheel bearings.
|
Distorted steering knuckle or rear axle shafts
|
Replace knuckle or rear axle shaft.
|
|
Excessive disc lateral runout
|
Check per instructions. If not within specifications, replace or machine disc.
|
|
Parallelism not within specifications
|
Check per instructions. If not with specifications, replace or machine disc.
|
|
Rear drums out of round
|
Check runout.
|
|
Braking noise
|
Glazed shoe linings, or foreign matters stuck to linings
|
Repair or replace shoe linings.
|
Worn or distorted shoe linings
|
Replace shoe lining (or pad).
|
|
Loose front wheel bearings
|
Replace wheel bearings.
|
|
Distorted backing plates or loose mounting bolts
|
Replace or retighten securing bolts.
|
|
Brake warning lamp lights after engine start
|
Parking brake applied
|
Release parking brake and check that brake warning lamp turns off.
|
Insufficient amount of brake fluid
|
Add brake fluid.
|
|
Brake fluid leaking from brake line
|
Investigate leaky point, correct it and add brake fluid.
|
|
Brake warning lamp circuit faulty
|
Repair circuit.
|
|
Brake warning lamp turns on when brake is applied
|
Brake fluid leaking from brake line
|
Investigate leaky point, correct it and add brake fluid.
|
Insufficient amount of brake fluid
|
Add brake fluid.
|
|
Faulty P & Differential valve (Differential switch)
|
Replace.
|
|
Brake warning lamp fails to turn on even when parking brake is applied
|
Bulb burnt out
|
Replace bulb.
|
Brake warning lamp circuit open
|
Repair circuit.
|
|
ABS warning lamp does not turn on for 2 sec. after ignition switch has turned ON
|
Bulb burnt out
|
Replace bulb.
|
ABS warning lamp circuit open, if equipped with ABS (including check relay)
|
Check system referring to
ABS Check
.
|
|
ABS warning lamp remains on after ignition switch has turned on for 2 sec.
|
Malfunctioning ABS, if equipped with ABS
|
Check system referring to
ABS Check
.
|