Toyota Tercel 1985 Repair Manual page 561

BR-2
BRAKE SYSTEM - Precautions, Troubleshooting
PRECAUTIONS
1.
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
of the same part number or equivalent.
2,
ltnis very important to keep parts and the area clean
wltsn repairing the brake system.
TROUBLESHOOTING
Problem
Possible cause Remedy
Page
Low or spongy pedal
Linings worn
Leak in brake system
Master cylinder faulty
Air in brake system
Wheel cylinder faulty
Piston seals worn or damaged
Rear brake automatic adiuster faulty
Replace brake shoes or pads
Repair leak
Repair or replace master cylinder
Bleed brake system
Repair wheel cylinder
Repair brake calipers
Repair or replace adjuster
BR-16,22
BR-43
BR-9
BR-7
8R.22
BR-1 6
B,R.22
Brakes drag Parking brake out of adjustment
Parking brake wire binding
Booster push rod out of adjustment
Return spring faulty
Brake line restricted
Lining cracked or distorted
Wheel cylinder or caliper piston sticking
Automatic adjuster broken
Master cylinder faulty
Adjust parking brake
Repair as necessary
Adjust push rod
Replace spring
Repair as necessary
Replace brake shoe
Repair as necessary
Replace adjuster
Repair or replace master cylinder
BR.8
BR.1 5
BR-22
BR-22
BR-18,22
BR-22
BR-9
Brakes pull
Tires improperly inflated
Oil or grease on linings
Brake shoes distorted, linings worn or
glazed
Drum or disc out of round
Return spring faulty
Wheel cylinder faulty
Piston frozen in caliper
Disc brake pad sticking
Inflate tires to proper pressure
Check for cause, replace lining
Replace brake shoes
Replace drum or disc
Replace spring
Repair wheel cylinder
Repair caliper
Replace pads
FA-3
BR-16,22
BR-16,22
BR-l8,22
BR-22
BR-18,22
BR.1 8
BR-1 6
Hard pedal but
brakes inefficient
Oil or grbase on linings
Brake shoes distorted, linings worn
or glazed, drums worn
Disc brake pads worn
Piston frozen in caliper
Brake booster faulty
Brake line restricted
Check for cause, replace lining
Replace brake shoes
Replace pads
Repair caliper
Repair booster
Repair as necessary
BR-I6,22
B R - 1 6 , 2 2
BR-1 6
BR-1 6
BR.1 4