Where is the coil located on a 1991 Chevy S10 4.3?

Well honey, the ignition coil on a 1991 Chevy S10 4.3 is typically located on the driver's side of the engine, near the firewall. It's that little spark plug-looking thing with wires coming out of it. Just follow the spark plug wires from the distributor and you'll find it. Don't be afraid to get your hands dirty, darling.