Ford F150 (1987 - 1991) - fuse box diagram - Auto Genius Jan 10, 2020Ford F150 - fuse box diagram. Ford F150 (1987 – 1991) – fuse box diagram. Year of production: 1987, 1988, 1989, 1990, 1991 Ford F-Series - Wikipedia The Ford F-Series is a series of light-duty trucks marketed and manufactured by Ford since the 1948 model year. Slotted above the Ford Ranger in the Ford truck model range, the F-Series is marketed as a range of full-sized pickup trucks. Alongside the F-150 (introduced in 1975), the F-Series also includes the Super Duty series (introduced in 1999), which includes the heavier nMhSnn [DFRM37] What is nMhSnn. Likes: 1351. Shares: 676.