One problem related to gas recirculation valve (egr valve) has been reported for the 1998 Hyundai Sonata. The most recently reported issues are listed below.
While driving at any speed egr light stays on. Dealer examined the vehicle twice, and replaced the egr valve and the egr switch.
| Engine Failure problems | |
| Check Engine Light On problems | |
| Gas Recirculation Valve (egr Valve) problems | |
| Engine Belts And Pulleys problems |