Hi need some help. I have a 99 4x4, 5.2 that jerks under light load after 50 mph. I can't tell if it is a miss or something in the drive train. (the 2 techs. that test drove it can't tell eather) The first time I had it in the shop they replaced and rerouted the plug wires a TSB did apply. Did not fix it. The second time they said its the over drive lockout and its nolmal. Then why does it do when not in over drive? They have had it on the computer and it has no codes. At times it feels like the brakes pulsesating but I can't feel it in the brake pedal. I like my Dakota but I've had ball joints and control arms replaced twice before 46000 miles. I'm loosing faith in it.
Thanks in advance

 

if it's not in your driveline, maybe you cat is clogged? my friend has a 5.2 ram and when he gives it about half throttle at around 45-60, it shakes and jerks back and forth, so he cleaned the cat and it quit. just a suggestion.