Mitsubishi 1989-1993 GALANT Service Manual page 1134

Probable cause
Symptom
Insufficient braking Low or deteriorated brake fluid
power
Air in brake system
Overheated brake rotor due to dragging of pad or
lining
Inadequate contact of pad or lining
Brake booster malfunction
Clogged brake line
Grease or oil on pad or lining surface
Proportioning valve malfunction
Auto adjuster malfunction
Increased pedal stroke Air in brake system
(Reduced pedal to floor-
Worn lining or pad
board clearance)
Broken vacuum hose
Faulty master cylinder
Brake fluid leaks
Auto adjuster malfunction
Excessive push rod to master cylinder clearance
Incomplete release of parking brake
Brake drag
Clogged master cylinder return port
Incorrect parking brake adjustment
Improper push rod to master cylinder clearance
Faulty master cylinder piston return spring
Worn brake pedal return spring
Broken rear drum brake shoe return spring
Lack of lubrication in sliding parts
Insufficient parking Worn brake lining or pad
Grease or oil on lining or pad surface
Parking brake cable sticking
Stuck wheel cylinder or caliper piston
Excessive parking brake lever stroke
Auto adjuster malfunction
SERVICE BRAKES - Troubleshooting
TSB Revision
Remedy
Refill or change
Bleed air
Correct
Replace
Adjust
Bleed air'
Replace
Correct
Adjust
Correct
Adjust
Replace
Lubricate
Replace
Adjust the parking brake lever
stroke or check the parking brake
cable routing
Adjust