Re: '88 F-150 5.0L 4X4 - EGR not getting any Vacuum
I'm not certain if the system's are the same, but I had the same problem with my 92 Ranger. It turned out that the small filter located in the bottom of the EVG was clogged. It's not reccomended to open this item, but I did. Cleaned it out and problem was corrected. I hope this help's.
When in doubt :DON'T
Valley Station, Kentucky
Dream EXPression Racing