so i bought a 2004 1500 in September a week driving into it was revving up and stalling on me. took it back to the dealership because i had a very limited warranty on it and they thought they fixed the problem. cleaned the throttle out. after that the the rocker fell off cylinder 4 took it back they put it back in place and i went on my way. 2 months later same thing but cylinder 8 they fix the lifter and the rocker and i hope to never see the dealership again 2 weeks later, same problem but back to number 4. i'm tired of these guys saying it just a faulty lifter them fixing it and it going back to the shop again anyone have the same problem?