Here's a general procedure. Consult your vehicle's repair manual for specifics as there may be slight variations depending on the exact model and trim level. A repair manual will provide diagrams and torque specifications.
Tools You'll Need:
* Jack and jack stands
* Lug wrench
* Wheel chocks
* Socket wrench with appropriate sockets (likely metric)
* Torque wrench
* Pliers or a brake caliper piston compressor tool
* Wire brush (optional, for cleaning)
* Penetrating lubricant (like PB Blaster)
Procedure:
1. Safety First: Park the Avenger on a level surface, engage the parking brake firmly, and chock the wheels. Use jack stands to securely lift the vehicle after jacking it up. Never work under a vehicle supported only by a jack.
2. Remove the Wheel: Loosen the lug nuts on the wheel you'll be working on using the lug wrench. Then, jack up the vehicle and remove the wheel completely.
3. Remove the Brake Caliper:
* Locate the caliper mounting bolts: These are usually on the back of the caliper.
* Apply penetrating lubricant: Spray penetrating lubricant onto the bolts to help loosen them.
* Remove the bolts: Use the appropriate socket and wrench to carefully remove the caliper mounting bolts.
* Support the caliper: The caliper is heavy and contains brake fluid. Use a bungee cord or wire to hang the caliper from a suspension component or secure it to something nearby to prevent it from dangling and damaging the brake hose. Do not let the brake hose hang freely.
4. Compress the Brake Caliper Piston: The caliper piston needs to be compressed to allow the rotor to slide off. You can do this using a caliper piston compressor tool (recommended) or carefully using C-clamps and a block of wood to push the piston back into the caliper. Be careful not to damage the piston or the caliper seal. As you compress the piston, you'll likely see brake fluid coming out from the bleeder valve at the top of the caliper (use a drain pan). It's also a good time to visually inspect the brake pads for wear.
5. Remove the Rotor:
* Inspect the rotor: Look for rust or corrosion. A wire brush can help to clean it, but often replacement is necessary at this stage.
* Remove the rotor: The rotor should now slide off the wheel studs. If it's stuck, tap it gently with a rubber mallet. Avoid damaging the rotor's surface, especially if you intend to reuse it.
* Inspect the hub: Check the wheel hub for damage or corrosion and clean it if necessary.
6. Install the New Rotor (if replacing):
* Position and Install: Place the new rotor on the wheel studs. The rotor should fit securely.
* Check for Smooth Rotation: Spin the new rotor. It should spin freely without binding.
7. Reassemble:
* Reinstall the caliper: Reinstall the caliper over the rotor ensuring that the caliper slides easily.
* Tighten the bolts: Tighten the caliper mounting bolts to the manufacturer's specified torque.
* Bleed the brakes (if necessary): If you compressed the caliper piston, you may need to bleed the brakes to remove any air that entered the system. Consult your owner's manual or a repair guide for the proper bleeding procedure.
* Reinstall the wheel: Replace the wheel and tighten the lug nuts to the manufacturer's specified torque.
* Lower the vehicle: Carefully lower the vehicle to the ground.
* Test the brakes: Before driving, test the brakes thoroughly to ensure they function correctly.
Important Considerations:
* Rust and Corrosion: Rust and corrosion can significantly hinder rotor removal. Use penetrating lubricant liberally and allow it to soak in before attempting removal.
* Torque Specifications: Always refer to your vehicle's repair manual for the correct torque specifications for the lug nuts and caliper mounting bolts. Over-tightening or under-tightening can lead to damage or failure.
* Brake Fluid: Brake fluid is corrosive. If you get any on your skin or paint, clean it up immediately.
If you are not comfortable performing this task yourself, it's best to take your vehicle to a qualified mechanic. Improperly installed brakes can be dangerous.
