1. Open the hood of the van.
2. Locate the distributor. It is usually located at the front of the engine, on the passenger side.
3. The ignition module is attached to the side of the distributor. It is a small, black box with several wires connected to it.
4. You may need to remove the distributor cap in order to see the ignition module.
Here is a picture of an ignition module:
[Image of an ignition module]
If you are still unable to locate the ignition module, you may need to consult a repair manual or seek assistance from a qualified mechanic.