RepairPal Certified shops can diagnose and repair your 2002 Chevrolet S10. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Sounds like you are going to need a fuel tank pressure sensor. The sensor is located inside the fuel tank, attached the fuel pump. In most cases the entire fuel pump is replaced.
I just put a new fuel pump in last year at the cost of $239.00.