I was coming home on the freeway yesterday and noticed that when I kicked my 04 2500 4x4 Ram into passing gear. It accelerated like always, the tach went up like always, but the speedo stayed on 60. After backing off it seemed to work fine until I stopped for gas at which point it went all the way around and the needle is now under the peg where it remains. There are no warning lights on so I don't think it's the rear sensor. There are no other symptoms. Any ideas?

Dave

 

it could be the abs sensor on your rear end.my dads was doing the samething and he went to the dealer and thats what they told him it was.he changed it and it fixed that same problem