However, here's a general overview of the process. Remember, this is not a substitute for a proper repair manual and attempting this without experience can be dangerous.
Safety First:
* Engage the parking brake firmly.
* Chock the front wheels. This prevents the van from rolling.
* Wear safety glasses and gloves.
* Use jack stands to support the van after lifting it with a jack. Never work under a van supported only by a jack.
* Disconnect the negative battery terminal. This helps prevent accidental shorts.
General Steps (May Vary Widely):
1. Wheel Removal: Loosen the lug nuts before jacking up the van. Lift the van and securely place it on jack stands. Remove the wheel.
2. Brake Drum/Caliper Removal:
* Drum Brakes: You'll need to remove the brake drum. This often requires using a drum puller tool to separate the drum from the backing plate. The wheel cylinder is usually attached to the backing plate.
* Disc Brakes: You'll need to remove the caliper, usually by unbolting it from its mounting bracket. Support the caliper with wire or a bungee cord to prevent it from hanging by the brake line.
3. Brake Shoe/Pad Removal:
* Drum Brakes: The brake shoes are attached to the wheel cylinder. Carefully remove them, noting their position and orientation for correct reassembly. Inspect the wheel cylinder for leaks.
* Disc Brakes: The brake pads are held in place by retaining clips or pins. Carefully remove them.
4. Hardware Inspection and Replacement:
* Inspect the brake shoes/pads for wear. Replace them if they are worn below the minimum thickness specified in your repair manual.
* Inspect the wheel cylinder/caliper for leaks or damage. Replace if necessary.
* Inspect the brake drums/rotors for scoring, cracks, or excessive wear. Replace if necessary.
* Inspect and lubricate the appropriate components as recommended in your manual.
5. Reassembly: Follow the disassembly steps in reverse order, ensuring everything is properly aligned and tightened to the correct torque specifications (found in your repair manual). Bleed the brakes after reassembly (see below).
6. Brake Bleeding: This is crucial to remove air from the brake lines. This usually involves loosening the bleeder valve on the caliper or wheel cylinder while an assistant pumps the brake pedal. There are various methods for bleeding brakes – consult your manual.
7. Wheel Replacement: Reinstall the wheel and tighten the lug nuts to the proper torque.
8. Test Drive: After everything is reassembled, test drive the van to ensure proper braking performance.
Important Considerations:
* Wheel Cylinders/Calipers: These components are often replaced as a unit, even if they seem to be functioning correctly. They are relatively inexpensive compared to the cost of labor and potential brake failure.
* Brake Lines: Inspect brake lines for damage or leaks. Replace if necessary.
* Parking Brake: Don't forget to check and adjust the parking brake mechanism if necessary.
* Torque Specifications: Always use the torque specifications recommended in your repair manual. Over-tightening can damage components.
Disclaimer: This information is for general guidance only. Improper brake repair can lead to serious injury or death. If you are not comfortable performing this repair, take your van to a qualified mechanic.
