'96 Discovery with issues...

[discoverychannel]

Hello all,

Any help you can give me on this subject will be appreciated because I am at a loss. When I am driving at any speed usually anywhere between 45-75 my Rover will start to shake and slow itself down. Then it feels like it is accelerating by itself even though I am not pressing any harder on the gas pedal. The RPMs will move when it tries to accelrate by itself but then it just stops and starts shaking again, then it does the accelerating thing....then a little more shaking and by shaking I mean you can feel it in the steering wheel and you can see things moving ex. cups in the cup holders. I am not sure what it is and don't even know where to begin beacuse it doesnt do it all the time and may run 500 miles between it's "episodes" seizures I guess you could call them. So it's difficult to explain and even harder to diagnose.

I basically wanted to see if anyone else had experienced this problem before.

Thanks guys and gals.