May have replaced the wrong sensor or you have a bad wire in that curcuit.
gm Jim
There is no fuse just for the speedometer. If the speedometer is not working, you may have a problem in the dash gauges cluster, or a vehicle speed sensor problem.
We had the same problem, and our 1998 F150 needed a new instrument cluster.
The odometer on a 96 Ford Explorer is tied into the speedometer. If the speedometer is working then there is a gear problem inside of the speedometer causing the odometer to not work.
The small stepper motor in the cluster probably is about to fail. It can be ordered and replaced if you have the patience and skill by removing the cluster from the dash. Or you can replace the cluster as a unit. www.usspeedo.com may be able to help you solve the problem. Join our enthusiasts forum at www.trailvoy.com The place where you can get all the answers to your questions about these trucks.
check the wiring to the speedometer. Check the sending unit as well. If the problem is internal then the speedometer will have to be replaced.
If both the speedometer and the odometer work on and off, I would blame the vehicle speed sensor. If only the speedometer is acting up, I would blame the cluster.
Answeri HAVE THE EXACT SAME PROBLEM WITH MY '92 BONNEVILLE. IT IS AN INTERNAL SHORT IN THE INSTRUMENT CLUSTER WHICH MEANS THE CLUSTER MUST BE REPLACED-VERY EXPENSIVE. SINCE THE SPEEDOMETER AND TAC BOTH WORK ALL THE TIME (IN MY CASE), I HAVEN'T REPLACED AND AM NOT PLANNING ON IT. I FIND THAT DISCONNECTING THE FUSE AND RECONNECTING IT CAUSES THE CLUSTER TO WORK FOR SEVERAL DAYS, BUT IT SHORTS OUT EVENTUALLY.You can have the dash cluster redone. I had the same problem with the dash on my 93 SSEI. The dash clusters on the SSE's and SSEI's have extra bells and whistles. I sent it to a place in NJ and they redid it for a surprisingly reasonable cost and it works great now. Part of the problem had to do with burnt out bulbs and a bad circuit on the back. It can be a little complicated to removed the dash cluster. If you need the info for the dash cluster rebuild place, I can get it for you.
If the speedometer and the odometer are not working, I would suspect the VSS (vehicle speed sensor). If only the speedometer is not working I would suspect the instrument cluster has problems.
You would fix it by replacing the instrument cluster. The speedometer itself may not be faulty, it is more likely to be a problem with the speed sensor.
My 94 had the same problem. Had to replace cluster. Got one off ebay for $40.
Helo my name is erik, My truck is a 1992 f250 I have the same problem. I put in a new sensor and pigtail in rear and it still is not working. I have checked and removed and replaced fuses and still no go. I am going to check the wiring for continuity, and voltage. I pulled the speedo cluster out and checked it and the speedo worked for a while and quit again. I have a friend at fords and he thinks it is the wiring from the rear axle sensor to speedo or the speedometer itself. I am looking for a speedometer cluster to borrow to try that. Should be a diesel cluster. let me know if you get yours working and what you did. Thanks. Mail me at ehansen@cleaninter.net
you need to replace dash illumination bulbs only problem the speedometer cluster has to be removed