Hey guys , I have a 1988 RS, 305TBI, 700R4 as my daily driver. I have started having a prob with the car jerking back and forth as if the tranny is going in and out of gears at cruising speeds (20-40 mph)....... any ideas ???

since when did they make the RS in 88? i have a sports coupe i read that the RS didnt come out that year....

Next time it acts up, depress and ride the brake pedal slightly.
If it goes away, it's the converter locking and unlocking (hunting).
Could be a bad lockup solenoid or 3-4 pressure switch on the valvebody.

TBI, then its prob a 1989 ??!!?? Its my second car man ...... Other than keeping it clean and regularly maintained I haven't paid that much attention to it....

F-Bird..... where is the lockup solinoid ?? Will I have to remove the pan ?? Or is it externally mounted ?

Thanks F-Bird....

Yes u have to remove the pan to replace the lockup solenoid
but it's relativly easy.