SL L4-1.9L SOHC VIN 9 (1991)
Perform a brake system inspection according to the procedure in this bulletin on any vehicle exhibiting brake pulsation, brake vibration, or brake
roughness. Corrections should be made according to the procedures in this bulletin.
Service Procedures
Important:
Refer to "1991-1994 Brakes Service Manual" or first or second edition "1995 Brakes Service Manual" for further service procedures and
specifications as required.
FRONT AND REAR DISC
Brake System Inspection
1.
Remove the front and rear wheels.
2.
Visually inspect the brake rotors for signs of corrosion or wear. If brake rotor surfaces are severely blistered, corroded, or flaking, the brake rotors
must be replaced.
Important:
Check brake fluid level in master cylinder reservoir and remove fluid if necessary to prevent overflow when retracting caliper piston(s).
3.
Manually check caliper movement; make sure calipers are not restricted. Calipers should move freely on the caliper pins.
4.
Remove caliper pins and then remove calipers. Do not allow caliper to hang by the brake hose; suspend caliper with a metal wire attached to the
strut spring. Inspect calipers and caliper hardware for the following:
4.1.
Lock pin and guide pin for damage or corrosion. Replace if damaged or corroded. DO NOT ATTEMPT TO REMOVE CORROSION OR
STRAIGHTEN LOCK PIN OR GUIDE PIN.
4.2.
Lock pin and guide pin boots for deterioration. Replace any damaged parts.
4.3.
Piston boot for deterioration following the "Front Caliper" and "Rear Caliper" disassembly and assembly procedures in the appropriate year
service manual, and overhaul caliper if piston boot is damaged or malformed.
5.
Check brake pads for freedom of movement in caliper brackets; pads should move freely in the caliper brackets.
