Ford 4.6 Engine Problems & Reliability The Ford 4.6 V8 was the first engine in the Ford Modular engine family. It hit the markets back in 1991 and remained in production through 2014. Ford also made three primary variants of the 4.6L engine - the 2-valve, 3-valve, and 4-valve. Horsepower for the Ford 4.6 varies widely from 190hp to 806hp. However, most models fall in the … [Read more...] about The 4 Most Common Ford 4.6 V8 Engine Problems