I recently swapped out my cluster for a white sport trac cluster. Everything was peachy keen for a week or so, but now my speedometer stopped working correctly. I followed the guide for making sure it worked while swapping the odometer and that went fine.
Yesterday, however, it sits between 40-60 even with the truck off. When I turn it on it stays up in that area instead of going down to 0. It also does not move smoothly or predictably. It doesn't move for a while, then it jumps up 5-10 mph, then sits, then jumps, etc, etc...
Any ideas on how to fix this would be outstanding, luckily I can tell roughly how fast I'm going based on what gear I'm in, but that won't be even close to accurate on the highway...
2003 Ranger 4Cyl 2.3L XL Styleside bed
Pioneer DEH-3100UB, Lund Genesis Tonneau, grill painted black, black front emblem, clear corners, ultra-guage, LED cluster.