thatguy69
New member
- Joined
- Jul 31, 2011
- Messages
- 2,023
So I installed a sump on my friends truck along with a fass 150. Anytime his tank is below 1/2 the sump starts sucking air when coming to a stop sign etc. I installed the same exact sump on my truck and I don't have this issue until I get down under 1/4 tank. The only differance is his truck is shorted and mine is long so I think my tanks bigger than his. What am I missing?