Two problems related to brake disc rotor have been reported for the 1998 Saturn SL. The most recently reported issues are listed below.
1998 Saturn 41,635 miles- bakes pulse and shakey steering- machine rotors new pads 48,343 miles-shakey steering-balance wheels replace suspected bad tire. 64,057 miles-shakey steering-machine rotors, pads okay for now. There is something definitely wrong with the brakes and or the rotors. I have owned many vehicles and never had rotor problems. While at the repair shop I overheard two phone calls from customers with similar complaints.
Rotors warped very frequently after service, causing the brake and the front end of the vehicle to vibrate and creating serious safety hazard. Yh.