Mitsubishi 1989-1993 GALANT Service Manual page 1135

Symptom Probable cause
Scraping or grinding Worn brake lining or pad
noise when brakes are
applied Caliper to wheel interference
Dust cover to disc interference
Bent brake backing plate
Cracked drums or brake disc
Squealing, groaning or Disc brakes-missing or damaged brake pad anti-
chattering noise when squeak shim
brakes are applied
Brake drums and linings, discs and pads worn or
scored
Improper lining parts
Disc brake-burred or rusted calipers
Dirty, greased, contaminated or glazed linings
Drum brakes-weak, damaged or incorrect shoe
hold-down springs, loose or damaged shoe hold-
down pins and springs
Incorrect brake pedal or booster push rod
Squealing. noise when Bent or warped backing plate causing interference
with drum
Drum brakes-weak, damaged or incorrect shoe-to-
shoe spring
Poor return of brake booster or master cylinder or
wheel cylinder
Loose or extra parts in brakes
Improper positioning of pads in caliper
Improper installation of support mounting to caliper
body
Improper machining of drum causing interference
with backing plate or shoe
Disc brakes-rusted, stuck
Worn, damaged or insufficiently lubricated wheel
bearings
Incorrect brake pedal or booster push-rod
Stones or foreign material trapped inside wheel
ling noise when brakes covers
Loose wheel nuts
Disc brakes-loose installation bolt
Worn, damaged or dry wheel bearings
Disc brakes-failure of shim
Disc brakes-wear on sleeve
Incorrect brake pedal or booster push-rod
SERVICE BRAKES - Troubleshooting
Remedy
Replace
Correct or replace
Replace
Correct or replace
Clean or deburr
Clean or replace
Correct or replace
Adjust
Replace
Retighten
Correct
Replace drum
Lubricate or replace
Adjust
Remove stones, etc.
Retighten
Lubricate or replace
Replace
Adjust