I recently bought a 1992 full size Bronco 4WD, 5.8L eng, with 129K on it. Last week I changed all the fluids, plus the rotor, distributor cap and serp belt. It road like a champ. Since that time I put about 60 miles on it and now I am experiencing problems. The tach does not register, the voltage meter does not register, the truck pulsates when driving almost surging.. I am not sure what it could be.. can you think of anything? I thought perhaps I messed up the wires when putting them on the new cap?? But I took my time and really paid attention. It did however rotate slightly to line up when I put it on. The old one did not fit in the grove like the new one did so it rotated slightly. Thoughts??