Re: '94 gt shaking!!!!
EGR....TPS...... They both can cause this. Dont know if your car has a MAF, but it will cause this also. But it only shakes while your in the cabin... Have you checked the trans mount? Mabey you just dont know its shaking cause your not in there. Also, a borken exhaust mount will cause it to vibrate against cabin.
1993 Thunderbird LX, Stroked 4.2L Complete Cold Air Intake, AOD w/stage 2 shift kit(soon to be 5speed)