How about the Ignition coil? If I remember right, it cost me about 70 bucks. After I replaced that, the idle on my 92 GT was smooth as silk.92gt5spd said:when's the last time u replaced the distributor/plugs/plug wires? They can cause a lot of hesitation. I'm not sure if your definition of hesistation is the same as mine...but thats what mine was. Mine would take about 2 or so seconds after i punched the pedal for it to actually rap out. And on the highway if i punched gas i would get sputter feeling. Mine was caused by old distributor/plugs/plug wires. Replaced them and everything was fine.