* Model Variations: There were many engine options available in the 1993 Chevy van line. The location of the spark control module can differ based on the specific engine size and configuration.
* Lack of Specific Model: "Chevy van 20" is not a precise model designation. You need to provide the exact model (like Astro, Express, G-Series, etc.) and the engine size (4.3L, 5.0L, 5.7L, etc.) for a precise answer.
How to Find the Spark Control Module:
1. Consult Your Owner's Manual: This is the most reliable source for specific component locations for your van.
2. Online Service Manuals: Search for a service manual for your specific year, model, and engine.
3. Professional Mechanic: Take your van to a trusted mechanic. They can easily locate the module for you.
4. Visual Inspection: If you have a basic understanding of car components, you can try looking for the module by following these general guidelines:
* Common Location: Spark control modules are often located near the distributor on the engine, or mounted on the firewall.
* Look for a Black Box: The module is typically a small, rectangular black box with electrical connectors.
Remember: When working on automotive systems, always prioritize safety. Disconnect the battery before working on electrical components.
