Tools you'll likely need:
* Socket wrench set (including a deep socket if needed)
* Screwdriver (likely Phillips head)
* Pliers (needle-nose might be helpful)
* New distributor cap and rotor (ensure they are the correct parts for your engine)
* Wrench for the distributor hold-down clamp (if applicable)
* Safety glasses
* Gloves
* Shop rag
Procedure:
1. Safety First: Disconnect the negative (-) battery cable. This is crucial to prevent electrical shocks and accidental short circuits.
2. Locate the Distributor: The distributor is usually located on the engine, near the firewall. It's a cylindrical component with wires connected to the top.
3. Remove the Distributor Cap: Carefully remove the distributor cap. Note the position of the wires before removing them. Many caps are held on by clips or pressure, and some may twist slightly to remove.
4. Note Rotor Position: Observe the position of the rotor inside the distributor cap. This is important for proper reassembly.
5. Remove the Rotor: The rotor is typically held in place by friction. It might need a slight tug or twist to remove it.
6. Inspect the Old Parts: Examine the old cap and rotor for cracks, wear, or corrosion. Replace them even if they appear to be in good condition to prevent future issues.
7. Install the New Rotor: Carefully install the new rotor, ensuring it's correctly aligned with the distributor shaft.
8. Install the New Cap: Carefully align the new cap with the distributor. Make sure the rotor aligns correctly with the number one spark plug terminal on the cap. Secure the cap.
9. Reconnect Wires: Reconnect the spark plug wires to the distributor cap in the same order as they were originally. Double-check this several times! Incorrect placement can cause misfires and engine damage.
10. Reconnect the Battery Cable: Reconnect the negative battery cable.
11. Test the Vehicle: Start the engine and listen for any unusual sounds or misfires.
Important Considerations:
* Year and Engine: This is a very general guide. The specific location of the distributor, the type of fasteners, and other details will vary depending on your Caravan's year and engine.
* Repair Manual: A repair manual specific to your vehicle's year and engine is invaluable. It provides detailed diagrams and instructions, reducing the risk of error.
* Spark Plug Wires: While you're working in this area, visually inspect your spark plug wires for cracks or damage. Consider replacing them if they look worn.
* Distributor Timing: If you have any problems, you may have to deal with distributor timing, which is a more advanced procedure requiring specialized tools.
If you are not comfortable performing this task yourself, it's strongly recommended to take your Caravan to a qualified mechanic. Incorrectly installing the cap and rotor can lead to significant engine damage.
