The starter on a 1998 Pontiac Sunfire GT 2.4L automatic is located on the
bottom/underside of the engine, typically near the transmission bellhousing. You'll need to get underneath the car to access it. It's usually bolted directly to the engine block.
Because of its location, accessing it can be tricky and may require removing some components for better visibility and access. A repair manual specific to your vehicle's year and model would be invaluable for detailed instructions and diagrams.
