Achieva V6-3300 3.3L (1992)
Brake Caliper: All Technical Service Bulletins
Brakes - Corrosion at Front Caliper Mounting Bolt Area
NUMBER:
92-T-18
CORP. REF. NO.: 135017
DATE:
December 1991
SECTION:
5B
SUBJECT
FRONT DISC BRAKE CALIPER
BOLT BORE CORROSIONREPLACE BOLT
AND SLEEVE ASSEMBLY/BUSHINGS
MODELS/YEARS
1990-92 EIGHTY EIGHT, NINETY EIGHT,
1990-91 CUTLASS CALAIS,
1992 ACHIEVA
CONDITION: Some 1990-92 Eighty Eight and Ninety Eight, 1990-91 Cutlass Calais, and 1992 Achievas may exhibit a condition of a caliper not
sliding freely or moving on the mounting bolts, inward toward the center of the vehicle.
CAUSE:
This condition is due to corrosion in the caliper mounting bolt area caused by contaminates seeping past the mounting bolt rubber bushing.
See the illustration below.
CORRECTION:
Inspect the caliper suspension mounting bolts and sleeves for corrosion. Also, inspect the bushings for cuts, nicks and/or excessive
wear. If damage to either part is found, replace with new parts.
Important:
Do not attempt to polish away corrosion from the bolt or sleeve assemblies. Lubricate the bushing bore with silicone grease, contained in
Bushing Kit, P/N 18017226 or equivalent and install bolt and sleeve assembly. The bolt and sleeve assembly should slide through the
bushing without the use of mechanical assistance. If the force required to slide the bolt and sleeve exceeds hand assembly pressure,
remove the bushings and inspect the mounting bores for corrosion.
^
If bores show signs of corrosion, clean the bores with a one inch wheel cylinder honing brush.
Important:
Replace rubber bushings with new parts contained in service kit, P/N 18017226 whenever they are removed from housing. All parts are
currently available from GMSPO.
