CTS V6-3.2L VIN N (2003)
Repair Instructions
Brake Pads Replacement - Front
Caution: Refer to Brake Dust Caution in Cautions and Notices.
Removal Procedure
1. Inspect the fluid level in the brake master cylinder reservoir.
2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the
reservoir before proceeding.
3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the
midway point before proceeding.
4. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
6. Install large C-clamp over the body of the brake caliper with the C-clamp ends against the rear of the caliper body and against the outboard brake
pad.
7. Tighten the C-clamp evenly until the caliper pistons are compressed into the caliper bores enough to allow the caliper to slide past the brake rotor.
8. Remove the C-clamp from the caliper.
9. To loosen the brake caliper lower pin bolt, hold the brake caliper guide pin with a wrench.
10. Remove the brake caliper pin bolt.
Notice: Support the brake caliper with heavy mechanic's wire, or equivalent, whenever it is separated from it's mount and the hydraulic flexible brake
hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may
cause damage to the brake hose and in turn may cause a brake fluid leak.
11. Pivot the brake caliper body (1) upward and secure the caliper out of the way with heavy mechanic's wire or equivalent; ensure that there is no
tension on the hydraulic brake flexible hose. Do NOT disconnect the hydraulic brake flexible hose from the caliper.
12. Remove the brake pads (1) from the caliper bracket.
13. Remove and inspect the brake pad retainers from the caliper bracket.
Installation Procedure
1. Inspect the brake caliper guide pin bolts. If damaged or corroded replace the brake caliper guide bolts.
2. Inspect the brake caliper guide pins. If damaged, or corroded replace the brake caliper guide pin. Do not attempt to clean away any corrosion.
Refer to Disc Brake Hardware Replacement - Front.
3. Inspect the brake caliper guide pin boots for cuts, tears, or deterioration. If damaged, replace the brake caliper guide pin boots. Refer to Disc
Brake Hardware Replacement - Front.
4. Inspect the brake caliper piston boot for deterioration, replace if damaged. Refer to Brake Caliper Overhaul - Front.
5. Install a large C-clamp (1) over the body of the brake caliper (3), with the C-clamp ends against the rear of the caliper body and against an old
inboard brake pad (2) or a wood block installed against the caliper pistons.
6. Tighten the C-clamp (1) evenly until the caliper pistons are compressed completely into the caliper bores.
7. Remove the C-clamp and the old brake pad or wood block from the caliper.
8. Install the brake pad retainers to the caliper bracket.
9. Install the brake pads (1) to the caliper bracket.
10. Pivot the brake caliper (1) downward, over the brake pads and into the caliper bracket.
Important: If reusing the lower caliper pin bolt, the threads of the lower caliper pin bolt and the threads of the caliper bracket mounting holes must
