1. Check for Fuses:
* Locate the fuse box: Usually under the dash, in the engine compartment, or in the cargo area.
* Find the fuse for the ignition system: It may be labeled "IGN," "Coil," or "Distributor."
* Inspect the fuse: Look for a blown fuse (broken filament). Replace it if necessary with a fuse of the same amperage.
2. Check for Power at the Coil:
* Locate the coil: It's usually attached to the distributor.
* Use a test light or multimeter: Connect the test light or multimeter to the positive terminal of the coil and the negative to a good ground.
* Turn the key to the "ON" position: If the light illuminates or the multimeter shows voltage, you have power to the coil.
3. Inspect the Ignition Switch:
* Check for continuity: Turn the key to "ON" and use a multimeter to test for continuity between the ignition switch terminal and the coil.
* Replace if necessary: If there's no continuity, the switch may be faulty.
4. Inspect the Wiring:
* Check for damage: Look for any cuts, frayed wires, or corrosion on the wiring harness between the ignition switch, fuse box, and the coil.
* Repair or replace: If you find damage, repair or replace the affected wiring.
5. Inspect the Ignition Control Module (ICM):
* Locate the ICM: It's usually near the coil or distributor.
* Check for signs of failure: Look for any burn marks, damage, or corrosion on the ICM.
* Test the ICM: There are specific procedures for testing the ICM using a multimeter. Consult your owner's manual or an automotive repair manual.
6. Inspect the Distributor:
* Check the rotor and cap: Inspect for cracks, wear, or carbon buildup.
* Ensure proper connection: Check the connection between the distributor and the coil.
Important Notes:
* Safety First: Always disconnect the battery before working on the electrical system.
* Professional Help: If you're unsure or uncomfortable with any of these steps, consult a qualified mechanic.
* Specific Model Year: The exact location and wiring configuration for your 1989 Dodge Van may differ slightly from the general information above. Consult your owner's manual or a repair manual specific to your vehicle.
By following these steps, you can narrow down the issue and hopefully resolve the power problem to your coil.
