Friday, 20 March 2015

Change Alero Rear Brake Pads

Brake pads are a ordinary wear tool that demand to be replaced periodically.

The Oldsmobile Alero uses a four-wheel CD braking manner for more advantageous stopping endowment than rear drum brakes feed. In a CD braking operation, the Chauffeur pushes the brake pedal, causing the master cylinder to draft brake fluid into the brake caliper under energy. This fluid force forces the brake piston absent and causes the brake pads to squeeze against the brake rotors. This is analogous to how bicycle brakes business. Over extent, the brake pads wear elsewhere and require to be replaced. This normally happens between 25,000 and 45,000 miles. Expect to appropriate approximately two hours to interchange the brake pads on your Alero.


1. Stand the hood of the vehicle. Allot the brake skillful cylinder at the rear of the engine compartment on the Chauffeur's side. Remove the cap of the skillful cylinder. Account the suction part to remove two-thirds of the brake fluid from the crackerjack cylinder. Change the cap on the adept cylinder.

2. Lift the rear of the vehicle with a jack and back it with jack stands.

3. Aim the spin and the heel of one circle stud to stop the orientation of the shove to the axle flange. Remove the trundle nuts ,and remove the tire and spin meeting. Moderate two of the circle nuts to care for the rotor on the vehicle.

4. Compress the brake caliper piston into the caliper. Corner the C-clamp with one heel against the outer brake pad and the other boundary against the back side of the brake caliper. Turn the C-clamp use clockwise to push the piston in Sufficiently to remove the caliper. Employment the correct-sized socket to remove the caliper bolts. Remove the brake caliper by rocking it off the caliper mounting frame. Hang the brake caliper up with a bungee cord or coat hanger to support it.

5. Remove the brake pads from the brake caliper by sliding them out of the clips. Slide the caliper retaining clips from the brake caliper frame. Inspect the brake caliper bolt boots for cracking or tearing. Wipe the surface of the caliper boot with denatured alcohol.6. Push the caliper piston completely into the caliper using the C-clamp. Be careful not to damage the boot or caliper piston. Inspect the caliper bolts for corrosion. If they are corroded, replace the bolts and bushings. Do not try to polish the corrosion off the parts. The boots are between the caliper frame and the caliper. Inspect the caliper piston boot for tears or deterioration. Replace these parts if you find any problems.

Make sure that the piston boot lies completely flat below the surface of the caliper piston. Lift the inner edge of the caliper boot and allow any trapped air to escape. Install the brake pad clips on the caliper bracket.

7. Install the brake pads onto the caliper brackets. Apply silicone grease to the caliper bolts. Install the brake caliper onto the caliper frame. Install the bolts in the brake caliper and tighten them. Remove the wheel nuts from the brake rotor. Install the wheel and tire assembly using the reference mark to make certain that it is in the same position, and tighten the wheel nuts.

8. Remove the jack stands and lower the vehicle to the ground.

9. Fill the master cylinder under the hood with new DOT-3 brake fluid.

10. Press the brake pedal three times to completely push the brake caliper piston out before you operate the vehicle.