hey guys new to forum hopefully you can help me out.
i have a 91 toy pickup with a a340F tranny. the truck will start off fine then around 5 mph it will buck and rpms will drop if i give it more gas it will rev kind of high. when cruising around 30 you will feel the rpms going up and down very erraticly while the bucking is occuring. a couple of time it will shudder untill i release the accelerator pedal. i figured it was the torque converter but not quite sure. i replaced both shift solenoids and lock up solenoid. fluid level is correct and nice and red. i have replaced the tps but no luck. the tv cable as also been adjusted to spec. any ideas will greatly be aprecciated.
Sounds like engine performance rather than transmission but it's hard for me to diagnose without actually experiencing the complaint.