I replaced the bulbs and applied white gauge faces on my 2003 Edge 4.0. Now the speedometer and tachometer are inoperative. They both move erratically and stick in place when ignition is turned off. Truck runs fine and all gauges worked accurately when my "improvements" began. Any ideas?PS I just noticed the oil pressure is pegged all the way up.

__________________
2003 Ranger Edge Ext. Cab. 4.0
Texas Ranger Edge EBay baby. Added Explorer(white) instrument panel,Tonnopro bed cover, Bushwacker side rails, Precision fit seat covers ,Bedrug Bilstein shocks and Wrangler tires.