Hi everyone! My '04 Dakota V8 4.7 4x4 with 180k miles has been "sputtering" lately - particularly going uphill and on gradual acceleration. It's like it either doesn't want to accelerate or it feels like I'm off-roading because it's sputtering so badly. Once I get to my deisred speed, it runs more smoothly. The truck is well maintained, but obviously there's something that needs attention - I just don't know what that might be with the symptoms.Plugs and coil packs are relatively new and the transmission was recently service. Any thoughts would be appreciated!!!