Justin J
Well-Known Member
- Joined
- December 20, 2021
- Messages
- 144
- Reaction score
- 67
- City, State
- Dallas, TX
- Year, Model & Trim Level
- 2006 Ford Explorer 4.0
Old fuel systems usually have with a returning fuel hose, and need a pressure regulator that’s regulated by vacuum.
However, for the 4.0 SOHC, it’s a returnless system. Then, why does the fuel pressure sensor needs vacuum please? I’m trying to understand how it works! Thanks!
However, for the 4.0 SOHC, it’s a returnless system. Then, why does the fuel pressure sensor needs vacuum please? I’m trying to understand how it works! Thanks!
