Trying to install a distributor where one doesn't belong is impossible and will severely damage your vehicle's ignition system.
If you're experiencing ignition problems, you need to diagnose the specific fault. This might involve:
* Checking for spark: Using an inline spark tester to determine if each cylinder is receiving spark.
* Inspecting ignition components: Visually examine the ignition coils, wires, and connectors for any signs of damage or corrosion.
* Using a diagnostic scanner: A code reader (OBD-II scanner) can retrieve diagnostic trouble codes (DTCs) from the vehicle's computer, pointing directly to the problem.
* Testing sensors: A multimeter can be used to test the crankshaft and camshaft position sensors.
Before attempting any repairs, it's strongly recommended to consult a repair manual specific to your 1998 Astro Van's engine (4.3L V6 is the most common). This will provide diagrams and troubleshooting steps. If you're not comfortable performing these repairs yourself, taking it to a qualified mechanic is the best option.