Three problems related to transmission slip out of gear have been reported for the 1999 Hyundai Elantra. The most recently reported issues are listed below.
When slowing down to approach a complete stop transmission seems to pop or slip out of gear, causing the car to jerk very hard at times. Only happens when car is decelerating between 20-15 mph.
The automatic transmission slips and jumps out of gear, causing the engine to climb in rpm. At other times the transmission the trans waits to grab then jerks the car forward. As of this time the car has been in for the same problem at 12000, 39000, 42000 and it is going back in. The last time this happened the car was in the shop on 8/24/2000, after picking the car up from repairs the same problem returned on the way home and the car is going back in on 8/28/2000.
While driving vehicle hesitates and then transmission slips out of gear, cause unknown. Dealer cannot identify problem. The vehicle could not start because the charging system failed to maintain the battery. Afeterwards, the vehicle experienced rough acceleration, cutting off in idle, surging back and forward. Brakes pulsing and squealing. Later on, the air system stopped completely due to the heater fan and motor assembly failure. Check the engine light came on due to burned spark plug wires.