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Installing Brake Pads on a 2002 GMC Envoy?

Here's a general guide to installing brake pads on a 2002 GMC Envoy:

Please note: This is a general guide, and the specific steps and procedures may vary depending on your vehicle's exact make, model, and year. Refer to your vehicle's repair manual or consult a professional mechanic if you're unsure about any step.

Tools and Materials:

- Lug wrench

- Chock or wheel wedge (to prevent the vehicle from rolling)

- Jack and jack stands (to raise the vehicle safely)

- C-clamp or brake caliper spreader tool

- Flat-head screwdriver or brake pad spreader tool

- New brake pads (specific to your vehicle's model)

- Brake grease

- Safety glasses and protective gloves

- Wire brush or sandpaper (for cleaning)

Procedure:

Step 1: Prepare and Park:

- Engage the parking brake, chock the rear wheels, and turn off the engine.

Step 2: Raise the Vehicle:

- Use the jack and jack stands to safely lift the vehicle off the ground.

Step 3: Remove the Wheel:

- Use the lug wrench to loosen and remove the lug nuts.

- Take off the wheel and set it aside.

Step 4: Remove the Caliper:

- Locate the brake caliper on the back of the wheel hub.

- Remove the bolts holding the caliper in place. These bolts may be covered by rubber caps; remove them first.

- Once the bolts are removed, gently lift the caliper off the brake rotor.

Step 5: Compress the Brake Piston:

- Use a C-clamp or brake caliper spreader tool to compress the brake piston back into the caliper.

- This step is necessary to make room for the new brake pads.

Step 6: Clean the Brake Caliper:

- Use a wire brush or sandpaper to clean any rust, dirt, or grime from the brake caliper.

- Make sure the caliper is clean before installing the new pads.

Step 7: Apply Brake Grease:

- Apply a small amount of brake grease to the caliper's slide pins and the back of the brake pads where they contact the caliper piston.

- This will help prevent squealing and binding.

Step 8: Install the New Brake Pads:

- Place the new brake pads into the caliper. Make sure the pads are properly seated in their place.

Step 9: Reattach the Caliper:

- Slide the caliper back onto the brake rotor. Make sure the caliper bolts align with the holes in the rotor.

- Secure the caliper with the bolts you removed earlier.

Step 10: Test the Brakes:

- Slowly lower the vehicle until it's back on the ground.

- Gently press on the brake pedal several times to ensure proper brake engagement.

Step 11: Test Drive:

- Take the vehicle for a slow test drive and brake several times to check for any abnormalities or noises.

Step 12: Replace Other Side (if Necessary):

- Repeat steps 3 to 10 for the other wheel if you're replacing brake pads on both sides of the vehicle.

Step 13: Clean Up and Dispose:

- Clean up any spilled brake fluid or debris.

- Properly dispose of the old brake pads and any other waste generated during the process.

Remember: Brake work is safety-critical. If you're not confident in your ability to perform these repairs or if you encounter any problems during the process, it's best to consult a qualified mechanic.