Tune-up: A regular maintenance function, usually associated with the replacement and adjustment of components in the electrical and fuel systems of a vehicle for the purpose of achieving optimum performance. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostTransverse engine Next PostTurbo-charging