Hello I have a 1977 280z and the RPM needle gets stuck from time to time. when I park the car and leave it off over night it will reset back to zero. This is my first post so I don't know if I am explaining myself correctly. I am looking for some guidance of what steps I should take first to check it without having to dismantle the dash. I know there has to be someone else that may have or had this problem. Thank you and I hope I am posting this correctly. Open to some feed back.