crazymikey
+1y
When you replace the needle for the speedometer,make sure not to push it on too hard,otherwise it can stick and not move as freely as it should. I know with some vehicles,you have to put the key in the 'on' position with the cluster plugged in to replace the needles.
I was doing some work on the gauge cluster in my previous Mercury Mystique and I think I pressed the needle back on too tight,because it would stick at certain speeds and then free up,so sometimes it would stick at say 40kmh while I was still accelerating and then it would free up and go to 70 after a couple of seconds. It was kinda weird. So I pulled it out,took the needle off and pushed it back on lightly and it was fine after that.