my 2002 ford focus feels like it shifts into neutral while driving... the check engine light came on right when this happened. Could this be a vacuum issue or does it sound more like a transmission problem? It typically happens when I reach about 30 mph
Possibly but since you have a CEL, you can get that checkout and that code will pinpoint you into the right direction of repair.
Search Ford Focus Questions
Ford Focus Experts
Related Models For Sale
Used Cars For Sale