OEM 2004 Buick Rainier Brake Disc

2004 Buick Rainier Parts Questions & Experts Answers

• Q: How to replace the rear brake disc on 2004 Buick Rainier?

  A: Check the brake fluid level at the brake master cylinder reservoir before replacing the disc. Use an appropriate tool to lower the fluid when the brake fluid is above the midway point. Lift the vehicle and take off the tire and wheel unit from the ground. Press the Brake Caliper Piston into the caliper housing using a large size c-clamp (J 21177-A) over the top of the caliper while pushing it toward the back Brake Pad until space opens for the caliper to be taken off the disc. Take out the brake caliper mounting bracket from the rear while also removing any Brake Disc retaining clips when present. You should remove any rust and foreign elements from the joint of the axle flange and Brake Disc since this keeps brake pulsation and lateral runout within safe limits. When you keep the disc instead of changing it mark the new disc position for accurate installation. Clean the Brake Disc contact area between the disc and axle flange using the wheel hub resurfacing kit (J 42450-A). Use filtered air to wipe denatured alcohol from park brake shoes before you clean the disc surface and install it correctly. Use high-temperature silicone brake lubricant to coat the part between the park Brake Shoe and backing plate. Also adjust the park brake shoes if required. Line up the disc marks on the axle flange before pushing the Brake Disc into place while gently rotating it. Put back the rear brake caliper mounting bracket and wheel set on the car before lowering it down. Filling the brake master cylinder reservoir when needed is essential before driving again to protect your safety. Press the brake pedal gently with force to make the new brake pads contact the discs properly while thinning the new disc surface.