Discussion Starter · #1 ·
Just like the title says, I am not maintaining pressure at the HPOP reservoir. I put a new LPOP in today, same problem. Turns out it is just dropping at the HPOP reservoir, when I hooked the guage up at the filter base the pressure looks good. I did some searching and found a mention of the lifter gallery plug at the back of the motor coming out and causing this. They said there was a TSB for it, but I can't find any other info on it. Anyone know anything about this or have any other ideas?