This is a new development as of this morning. When i am driving speedo reads fine. When stopped the needle moves around the 15 mph mark, fluctuating as much as down to the ten and up to the twenty, when i start to move it snaps back down to zero and then works normally.
Also my oil pressure guage is stuck below the pin. its been like this since ive gotten the truck.
i feel like checking the connections on the back of the gauge cluster is a good first step, but down want to be ripping my dash apart.