Where is the starter on an 03 Tahoe?

On a 2003 Chevrolet Tahoe, the starter is located on the passenger side of the engine, generally towards the bottom. You'll need to get down low and look up to see it. It's usually bolted directly to the engine block. Access can be somewhat difficult depending on the specific engine (4.8L, 5.3L, or 6.0L) and modifications to the vehicle.