Hi Folks I got 5.7 hemi that is misfiring on # 5 cylinder only at high rpms and cruises speed .
Its not the plugs ,coil pack or injector all new I even moved them all to #3 cylinder and still comes up #5. Compression is the same in all cylinders at 175 psi 90,000 miles on it any Ideas? I heard that it might be a lifter problem but there is no ticking.
Kevin
I'm far from an expert on these, but I do know the MDS lifters can be a bit problematic, but since you have no noise, I don't know. I hope someone chimes in soon with some help for you. You might try some of the LX forums. Some very knowledgeable people there when it comes to the 5.7's.
