IDIBRONCO
IDIBRONCO
This is the hard line that runs from the lift pump up to the filter. There's a solid connection on the fitting that actually goes into the filter head, but a nut attaches the line to that fitting. The olive's underneath that nut.
New IP
- Thread starter Snowturtle
- Start date
Classic Diesel Designs sells a real nice kit to delete the hard line from filter to IP and it's only about 45 minutes to install. Worth it in my opinion.
Snowturtle
Registered User
Guess I'll check that out too then. Thanks
Filter to IP Hardline Delete Kit
Snowturtle
Registered User
I ordered it! Modified the lift pump to filter line myself. When the new line comes I'll install that and try a new filter and post the results. Still chugging after fixing the one line. So frustrating!
Snowturtle
Registered User
Update: installed new line from filter to IP and no improvement. The needle on fuel pressure gauge I installed on the kit bounces all over the place and is mostly unreadable. It seems to be in the 4-5 psi range at idle and drops down to 2-3 when I rev it up. I just bought a standard cheap analog gauge, what do I need instead? And are those pressures adequate? Getting so frustrated that I'm close to giving up on this truck. Recap: after replacing IP, lift pump, injectors, and return lines, it sputters and chokes when cruising under 2000 rpm but idles and accelerates smoothly. What did I get wrong? Or what new part isn't working properly?
Snowturtle
Registered User
Thanks. I'll start going back toward the tanks from there. I wonder if my new lift pump is weak and that's been my problem the whole time. I took it out and reinstalled it once in case I had the arm on the wrong side of the lobe. I'll go look for air leaks first, I guess. Maybe try a different new fuel filter too?
I dont think fuel filter would necessarily cause that. I have a 10 micron I installed on the suction side near my fuel tank selector valve, then I have the one at the engine. I'm also running the mechanical lift pump and I see 5-6 normally.
Could be your new pump is defective out of the box, or your cam lobe is no longer a lobe
Could be your new pump is defective out of the box, or your cam lobe is no longer a lobe
Kdo58
Full Access Member
Go electric fuel pump
Snowturtle
Registered User
Where? Back by the tank? Or up front? Leave the lift pump connected or bypass it? What pressure should I be shooting for?
Thanks for the help everybody, this is getting so frustrating!
Kdo58
Full Access Member
Do you have a turbo
Snowturtle
Registered User
Yes, factory turbo, replaced about a year ago.
Snowturtle
Registered User
I've been reading all the posts about electric pumps - a lot to figure out! I'm leaning toward the Moose Diesel kit so I don't have to figure out which parts work together. Or would Russ's booster kit be OK? I'm not having a priming problem, the truck starts right up
Kdo58
Full Access Member
I have a holley electric fuel pump on my turbo engine. I dont use a relay or a fuel pressure regulator.
