2000 Durango Accelerator problems/Help!!

[martin75]

I have a 2000 durango 4x4 with 47k on it. Recently I've noticed that my engine will rev from around 2000-2400 rpm when I'm going upwards of 45 mph. It feels like its shifting between gears, even in cruise control I cant get the rmp's to "mellow out" and stay on a certain rpm reading.
On occasion, the check engine light will come on.
Any help on what's going wrong would be greatly appreciated

[tommychau]

Sounds like a speed control sensor problem. Speed sensor cost something like $20-$20 bucks and located near the rear of the tranny and can be easily changed out yourself if you have some basic mechanical knowhow.

[dano 360]

Throttle position sensor is bad. You can pick one up at any parts store for $25. Just unplug it and 2 screws to remove it from the drivers side of the throttle body.

danny