Joined
·
78 Posts
Hey Burner, I just replaced my stock pump with the FASS DDRP last thursday and had kinda the same problem with my truck. After the initial test run of about 30 minutes it ran great for about 25 of them then I was about 4 miles from home and lost fuel pressure. made it home very gingerly. Long story short I tried many things the rest of the day gave up at midnight got back on it saturday took the pump off and noticed at the pump head one of the screws didn't look right, wasn't seated down and looked cockeyed just a little bit. I took the 4 screws out and the end plate off to check the o-ring seal, it looked fine then I put it back together making sure to tighten them down like you would a tire on your truck. Put it back on and now have 17 psi at idle, drops to 8 psi full throttle 0 to 70mpg but jumps back up to 17/18 psi now every time. Normal driving it doesn't drop below 12 psi. My psi's were about the same as yours on my first test run, I believe the pump was sucking air at the pump head causing my low fuel pressure. Now I can just flat out run it like a dog and it just keeps on going. Hope this helps!!!
Talked to my supplier (the diesel store.com) they talked to FASS, FASS is supposed to call me back, waiting on FASS to call me to give them the good news
Talked to my supplier (the diesel store.com) they talked to FASS, FASS is supposed to call me back, waiting on FASS to call me to give them the good news