Mitsubishi 3000GT 1991 Service Manual page 727

SERVICE BRAKES - Special Tools / Troubleshooting
Symptom Probable cause
Vehicle pulls to one Grease or oil on pad or lining surface
side when brakes are
Inadequate contact of pad
applied
Auto adjuster malfunction
Low or deteriorated brake fluid
Insufficient braking
power
Air in brakesystem
Overheated brake rotor due to dragging of pad
Grease or oil on pad surface
Inadequate contact of pad
Brake booster malfunction
Auto adjuster malfunction
Clogged brake line
Proportioning valve malfunction
Air in brake system
Increased pedal stroke
(Reduced pedal to
floorboard clearance) Worn pad
Broken vacuum hose
Brake fluid leaks
Excessive push rod to master cylinder clearance
Faulty master cylinder
Worn brake pedal return spring
Brake drag
Insufficient push rod to master cylinder clearance
Defective master cylinder piston return spring
Clogged master cylinder return port
TSB Revision
Remedy
Replace
Correct
Adjust
Add or refill
Bleed air
Correct
Replace
Correct
Correct
Adjust
Correct
Replace
Bleed air
Replace
Replace
Correct
Adjust
Replace
Replace
Adjust
Replace
Correct