OK guys, My speedometer has been going crazy lately. I put in a Dallas speed cal last year right before I parked the car so I never really had a chance to see if it worked or not. This year when I took it out it was doing fine. Looked like it was dead on. Then all of a sudden it started reading really high. Like wrapping the needle all the way around to the peg. It was off and on like that for a while. Now it stays rapped up there. It will drop a little with the car off but as soon as you go to start it it hits the peg. Anyone know whats going on?