please help I have a 1998 dodge cummins 3500 12 valve with the nv4500 5 speed and the speedo doesnt work at all. all the other gauges work but the speedo, ive replaced the sensor on diff.. and I looked on the end of the tail housing and there is a place for another speed sensor but its weird because I cant find a plug this truck is all original too no swaps someone please help thanks

 

Check wires coming from rear end, they will will run to drivers side and then begin running up frame will e brake cables. Mine have been rubbed into right infront of rear tire, they were rubbing on something I cant recall what it was. Wish you luck

 

Is your odometer working? If not have you checked the fuse?

 

well thanks ille check the wires tommorro but as for the fuse box inside im missing the panel so I dont know what fuse is what

 

It's the top row, far left, a 10 amp fuse, slot number 3

 

ok thanks ille check tommorro

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I looked at the right fuse today and it was good as for the wires from the sensor couldnt look today raining like crazy but ille look tomorro and keep yall posted thanks

 

ok no rain today I looked and my wires and they was into so I put them back together and drove down the road no speedo still but today I payed close attention when I turn on my switch it moves up to zero like normal and my odometer works so here my thought it could only be the sensor because the speedo moves a little so its not broke so basically its not getting signal so 2-morro im buying a new sensor oh also found out that my rear ends from a 1995 3500 but found out and will have a new sensor tommorro wish me luck

 

If the odometer is working the problem has to be in the speedometer. The odometer and speedometer both use the same signal from the sensor. Ours was doing something similar and I took it out and had it repaired. I don't know if there are any speedometer shops in your area but if you can.t find one I took ours to a shop in Tampa Florida called DNA Speedometers. I don't have their phone number right now but you can do an internet search and find their website. If you need them and can't find them PM me and I will track their number for you.

 

ok well grady c I might just go down to the diesel shop close to me and get another speedo from another truck and try that whatta you think then it should work if not its the sensor I guess

 

If the odometer is working replacing the speedometer will fix it as long as the used replacement isn't bad also.