OBDII says bad transmission and EGR
1997 Taurus (115000 miles), check engine light came on yesterday. Took the car to AutoZone today, they said the code came up as bad transmission and EGR problems. The car seems to be running fine. Should I take it to a mechanic so he can charge me tons of $ or just keep driving the car until it stops or is there something I can try to fix (or check) myself? Any input is greatly appreciated.