We have an 02 TJ with the 2.5 manual transmission. All the sudden it started running rough. It runs fine until you get up to around 55 mph and 2000 rpm. It starts bucking like you are in the wrong gear. We have changed the plugs and wires. Also a new distributor, fuel pump and coil. None of these things has changed anything. We also changed out the crank sensor with other jeep. Has anyone had a similar problem. All help is appreciated
