One problem related to engine noise has been reported for the 1997 Jeep Wrangler. The most recently reported issues are listed below.
Oil pressure guage drops to zero, warning buzzer sounds. Hazardous to pull over to shoulder in traffic, stop engine. Dealer reports oil pressure is fine, sender unit at fault. It's been repaired 3 times, still happens. I still feel it necessary to immediately reduce speed or stop until pressure guage reads normal to protect engine. This has caused some traffic safety issues for myself and other motorists.