Also check your fuses, number 14 under the hood should be a 30 amp for Generator Voltage Regulator. Check the small wires on the alternator for corrosion if they feel brittle or look green they need to be replaced. Also dont rely on the dummy light or gauge, use a volt meter to get the voltage at the battery.
Originally Posted by rcmustang
Check for the fusible link from the alt to the solenoid.
The solenoid on the fender died in 98.