GM 89027184
Brake Pads

Before starting check the brake master cylinder reservoir for brake fluid level; if the level exceeds midway between maximum and minimum range pull off excess fluid using a brake fluid extractor to reach the midpoint. Lift the vehicle and take off both tire and wheel parts from their position. The Brake Caliper Piston moves back when you tighten a large c-clamp on top of the caliper sticking out into the Brake Pad. Once the piston is in position, remove the c-clamp and slide the caliper off its spot. After taking off the lower mounting bolt from the guide pin you should turn the brake caliper upward to its stopping point. Get rid of both types of Brake Pad together with attachment clips from both brake caliper mounting hardware and the caliper itself. Also use denatured alcohol to wash all foreign particles from the brake caliper. Set new brake pads in their proper position by adding fresh Brake Pad retaining clips first to both brake caliper parts and mounting bracket to achieve right alignment. Mount the brake pads inside and outside the braking surface before placing the brake caliper into its proper position. Fasten the lower guide pin bolt into position and thread it to 42 nm torque value. Return the tire and wheel parts then let the vehicle lower before topping up the brake master cylinder reservoir. Press the brake pedal gradually while applying force to let the brake pads take their position before conducting new pad burnishing.

Start the Brake Pad replacement by checking your brake master cylinder reservoir fluid level. If it stands higher than the middle mark between the acceptable range, use a brake fluid extractor to lower it until it reaches the middle position. Lift the vehicle and take off the tire and wheel unit. Press down the brake caliper pistons by pushing a large c-clamp over the brake caliper case onto the back of the outer Brake Pad until the pistons create room to move the caliper away from the rotor. Take out the caliper by removing first the c-clamp then loosening the bolt that secures the guide pin and moving the caliper upward until it stops. Clean the brake caliper with denatured alcohol before you remove its inboard and outboard brake pads. Keep the Brake Pad retaining clips from the brake caliper mounting bracket for later use. New brake pads must go with fresh retaining clips during replacement. Place Brake Pad retaining clips on the brake caliper mounting bracket first before positioning the new brake pads properly. Keep the spreader springs from getting highly warped during this process. Place the brake caliper back where it belongs. After that, tighten the lower brake caliper guide pin bolt to 64 n.m (47 lb ft). Reposition the wheel and tire parts before letting the car down and topping up the brake fluid tank. Press the brake pedal gently but firmly to allow the brake pads to rest in place before using Brake Pad burnishing.

Check brake fluid level in the master cylinder tank before starting. If fluid level is above the specified range, use a brake fluid extractor until it hits the correct position. Lift the vehicle and take off the tire and wheel unit. Push the rear brake caliper pistons towards the rotor with a large c-clamp on the top of the housing before sliding off the brake caliper by tightening the clamp until the pistons move back enough. To start, unscrew the top brake caliper bolt. Next push the brake caliper down until it stops before taking out both brake pads and retaining clips from the brake caliper mount. Finally remove the caliper retaining clip from the brake caliper. Dampen the brake caliper mounting bracket with denatured alcohol and dry it with filtered air that does not contain any lubricant. During Brake Pad installation use only new Brake Pad retaining clips and put them on the brake caliper mounting bracket first before adding new brake pads. Place the Brake Pad retaining clip onto the brake caliper piece before elevating the rear brake caliper into its right position. Secure the brake caliper mounting bolt above by turning it 31 nm (23 ft. Lbs.) before rehanging the wheel and tire. The driver should raise or lower the vehicle while filling the brake fluid tank as needed. Press the Brake Pedal gently and fully until new pads make contact with the rotor to burnish the surface correctly.

Use a brake fluid extractor to bring it down to the midway point.

Tighten it to 31 Nm (23 ft. lbs.).

Inspect the brake fluid level in the brake master cylinder reservoir.

Use a brake fluid extractor to bring it down to the midway point.

Pump the brake pedal slowly and firmly.

Install a large C-clamp over the top of the brake caliper housing against the back of the outboard brake pad and slowly tighten it until the piston is pushed into the brake caliper.

Use a brake fluid extractor to bring it down to the midway point.

Inspect the fluid level in the brake master cylinder reservoir; if the level is above midway, remove brake fluid to reach the midway point.

Install the retaining clip from the brake caliper, rotate the rear brake caliper upward, and install the upper brake caliper mounting bolt, tightening it to 31 Nm (23 ft. lbs.).

Fill the master cylinder reservoir to the proper level and burnish the pads and rotors.

Take care not to excessively deform the spreader springs.

Pump the brake pedal slowly and firmly to seat the brake pads and burnish the new brake pads.

Pump the brake pedal slowly and firmly to seat and burnish the new brake pads.