I have a 2006 ram 1500 with a 4.7 . My rpms stay at zero while I drive and if I accelerate they go crazy and then come back down to zero. Any one know how to help ?

 

Common issue. If you are good with precision soldering, check you tube for repair. If not, you can send it out for repair. Cluster itself is no longer available, and junkyard part will render your vehicle unusable without dealer flash, and dealers will not do it.