Mazda 323 1988 Workshop Manual page 747

TROUBLESHOOTING GUIDE 1 1
TROUBLESHOOTING GUIDE
Problem Possible cause
Remedy Page
Poor braking
Leakage of brake fluid
Repair
-
Air in system
Air bleed 11-11
Worn pad or lining
ReplaCe
l l -26,29,36
Brake fluid, grease, oil or water on pad or lining
Clean or replace li-26.29,38
Hardening of pad or lining surface, or poor Grind or replace 1 l-26,29.36
contact
Malfunction of disc brake piston
RepI.
1 l-27.41
Malfunction of master cylinder or wheel cylinder
Repair or replace 11-14.30
Malfunction of power brake unit
Repair or replace 11-21
Malfunction of check valve (vacuum hose)
Repair or replace 11-21
Damaged vacuum hose
Replace
-
Deterioration of flexible hose
ReplGS
-
Malfunction of dual proportioning valve
ReplaCe
11-48
Brakes pull to one
Worn pad or lining
ReplaCe
11-26,29,38
ride
Brake fluid, grease, oil or water on pad or lining Clean or replace 1 l-26,29,36
Hardening of pad of lining surface, or poor Grind or replace 1 l-26,29,38
contact
Abnormal wear. distortion of disc or lining Repair or replace
Malfunction of automatic adjuster Repair or replace
-
Looseness or deformation of backing plate mount-
ing bolt
Tighten or replace 11-34
Malfunction of wheel cylinder Repair or replace 11-30
Improper adjustment of wheel bearing preioad, Refer to Section 9
-
or wear
Improper adjustment of wheel alignment Refer to Section 10
-
Unequal tire air pressures Refer to Saction 12
-
3rakes do not No brake pedal play Adjust ll- 7
.etease Improper adjustment of operating rod or push rod Adjust 11-15
Clogged master cylinder return port
Cleafl
-
Shoe does not return properly Adjust
-
Wheel cylinder does not return properly Clean or replace
11-30
Improper return due to malfunction of piston seal Replace
1 l-27,41
of disc brake
Excessive runout of disc plate Replace
Improper return of parking brake cable, or im- Repair or adjust 11: a
proper adjustment
Improper adjustment of wheel bearing preload Refer to Section 9
-
'edal goes too far Air in system due to insufficient brake fluid Add fluid and bleed 11-11
Too much pedal
air.
stroke)
Improper adjustment of pedal play Adjust
ll- 7
Worn pad or lining
R&-lCe
1 l-26.29,36
Air in system Air bleed
11-11
lbnormal noise or
Worn pad or lining
ReplaCe
11-26,29,36
ribration during Deterioration of pad or lining surface Grind or replace
ll-26,29,38
xaking Brakes do not release Repair
-
Foreign material or scratches on disc plate or Clean
drum contact surface
Looseness of backing plate or caliper mounting Tighten
11-34
bolts
Damage or deviation of disc or drum contact
Replace
-
surface
Poor contact of pad or lining
Repair or replace 11 -.x,29,38
Insufficient grease on sliding parts Apply grease.
-
'arking brake Excessive lever stroke Adjust
ll- 8
foes not hold well Brake cable stuck or damaged Repair or replace
11-50
Brake fluid or oil on pad or lining Clean or replace
ll-26,29,36
Hardening of pad or lining surface. or poor
Grind or replace
contact
mu1 1xoa
11-5