Speedometer

[Demon Dodge]

I have changed the speed sensor twice and tightened the output shaft nut but the speedometer will work fine for about 3 weeks and then starts jumping all over the place again making it impossible to use the cruise control. Does anyone have any other suggestions? I also cleaned and lubed the adapter.

Thanks, Rod

 

[RDusch]

Demon Dodge,



try cuting off the factory plug and just replace them with a good quality quik connect and seal it, you'll have to try a couple different sizes to get the on that fits tight on the senders pins.



i found that the pin in my plug although it looked good was broken inside and making intermitent contacked,



Rick D

 

[RDBuck]

speedometer troubles

Take the entire sending unit out of the transmission. Separate the pinion gear housing [ the part that bolts directly to the trans. ]from the rest of the unit. Clean the hollow tube end where the square speedo cable slides in. Use a light and inspect the area in the tube that mates to the short square cable. The tube is pinched square about 1/4" from the top, sometimes this "square" becomes rounded and lets the cable slip,grabs again and then slips again until it stops functioning altogether.