Where does the negative battery cable connect besides on a 1987 G 20 Chevy van to chassis but where?

On a 1987 Chevy G20 van, the negative battery cable's primary connection is to the chassis (ground). However, there might be a secondary connection, though it's not standard practice to have more than one. The secondary connection, if present, would likely be a ground strap connecting the engine block to the chassis. This ensures a good electrical path between the engine and the battery's negative terminal.

Important Note: If you're having electrical problems, don't assume extra ground straps are needed. Instead, check for:

* Corrosion: Clean all battery terminals, cable ends, and ground points. Corrosion is the most common cause of poor electrical connections.

* Loose Connections: Ensure all connections are tight.

* Broken Wires: Inspect the negative cable and any related ground straps for breaks.

Adding extra ground straps without understanding the electrical system could actually create more problems than it solves. Focus on ensuring the existing connections are clean and tight before considering any additional grounds. A multimeter can help confirm good ground paths and identify voltage drops.