1. Safety First:
* Parking brake: Ensure the parking brake is fully released.
* Wheel chocks: Use wheel chocks to secure the vehicle.
* Jack stands: Never work under a vehicle supported only by a jack. Use jack stands for safety.
* Safety glasses: Protect your eyes from flying debris.
2. Preparation:
* Loosen lug nuts: Loosen the lug nuts on the wheel before jacking up the vehicle.
* Raise and support the vehicle: Safely lift the vehicle and securely support it with jack stands.
* Remove the wheel: Remove the wheel.
3. Drum Removal Techniques:
* Rust and corrosion: Rust and corrosion are the primary culprits behind stuck drums. Penetrating oil is your best friend.
* Liberally apply penetrating oil: Spray penetrating oil (like PB Blaster or Liquid Wrench) generously around the edge of the drum where it contacts the backing plate. Focus on the area where the drum meets the wheel studs. Let it soak for at least 30 minutes, or even overnight for really stubborn drums. Reapply several times during this period.
* Heat (use caution): A propane torch can help expand the drum slightly, making it easier to remove. Apply heat carefully and evenly, avoiding overheating the brake components (especially the wheel cylinder). A few minutes of gentle heating should suffice. Never heat to the point of glowing red.
* Mechanical methods:
* Auto Parts Store Tools: Auto parts stores sell drum brake pullers. These tools are designed to safely and effectively remove stuck drums without damage. They grip the drum internally and pull it away from the backing plate. This is the recommended method.
* Improvised methods: If you don't have a puller, you can try using two large screwdrivers as pry bars, but be extremely careful to avoid damaging the backing plate or drum. Insert the screwdrivers into the gaps between the drum and backing plate and gently pry. Use a block of wood to protect the drum's surface and spread out the force.
* After removal: Once the drum is loose, it should slide off relatively easily.
4. Inspect and Repair:
* Inspect the drum: Check the drum for cracks or damage. If damaged, replace it.
* Inspect the brake shoes: Inspect the brake shoes for wear. Replace if necessary.
* Inspect the wheel cylinder: Check the wheel cylinder for leaks.
Important Notes:
* If you're not comfortable working on brakes, take your vehicle to a qualified mechanic. Brake work is crucial for safety, and improper repair can have serious consequences.
* Never use excessive force. If you're struggling to remove the drum, stop and reassess your technique. Further force will likely cause damage.
* Always consult a repair manual specific to your 2002 Dodge Caravan. This will provide diagrams and detailed instructions specific to your vehicle's brake system.
By following these steps carefully, you should be able to safely remove the stuck drum brake. Remember, safety and patience are key when working on your brakes.
