Bouncing speedometer on 95 f150
At any speed my speedometer will jump around about 5-10 mph over nad under what im actually going. I tried changing the speed sensor in the rear end but that did not help. Do you all have any suggestions i think either my comp is going cazy or my gauge is messed up. Also at the same time my fuel gauge quit working i have dual tanks on the same gauge and 1 registers and the other doesnt but even the one that registers gives me faulty readings. Plz help.