Pike40

Looking for a little advice. My lift pump has slowly been getting weaker. I have a FP gauge, currently running 11-12 cold idle and WOT about 7. I have 50,000 on the original LP. So I am trying to decide when and with what to replace the OEM LP. Looking for pros and cons, I can go with OEM(or similar), after market such as FASS (or others) or in tank. The cost appears to run from around $300 to just over $800. What does the collective wisdom suggest?

Thanks in advance

Pike

tenbrooks

Leave it alone, your pressure is fine. unless you like to spend money. when it below 5 psi, put a $120 walbro on it and kiss fp problems goodbye.

Barry St John

Good Advice. It has been my experience that you might not get any better pressure than that with a new campaign pump right out of the box!

Copenhagenjunkie

I would spend $125 and get a big line/relocation kit from vulcan.

proj4ever

Is it worth replacing (if you don't mind spending the $$$) just for the piece of mind that it won't go out and leave you in a pinch?

I am new to the deisel world but have heard horrible things about the lift pumps. I currently have 61K on the clock, what is the life expectancy of the LP?

Barry St John

Also very good advice. Your numbers, 11 - 12 idle and 7+ wot are really pretty good. You have plenty of pressure to keep your injection pump happy and the intank replacement for your truck will have even less pressure then you have now. The last two campaign pumps that I installed also didn't do any better then that out of the box. The restrictive banjo's in your fuel line imho are more important to you because when your pump starts to fail good flow will keep the pressure up until you can get it changed. The big line kit is great but overkill unless you are going to have a lot of performance mods in your future. I have a 3/8 line from the pump to the filter and I have never noticed less than 13 psi read after the filter with small injectors and a basic box. I'm sure there are others out there that are good but the vulcan relocate basic kit is what I personally recommend. Good Luck

WildBill

Electric pumps are efficient at pushing, not pulling. So your best bet is to install a pump near the fuel tank. I have seen the stock lift pumps go out in less than 12 months. I like the FASS II, way better system than stock, but you still use the stock filter housing, so you keep you water in fuel sensor and fuel heater intact, and use stock fuel filters.

johnh

if you are worried about your ip you should read this, if you haven't already

https://www.dieseltruckresource.com/...d.php?t=149587

bentwings

I think (MHO) that relocation and a larger line kit all the way to the injector pump is a good idea. You can update to a more advanced pump later if it is needed or you want to feel better about the fuel system. Also plan on running the fuel tank down only to about 1/2 way. This will keep the fuel temp down some which seems to help everything live longer.

As noted, these pumps are good pushers but not very good pullers. With them mounted low they are in the best possible position. Simple thing. Why didn't DC do this?? blah blah, it's already been said to death.

Get a new pump and carry it as a spare.

Make your fitting arrangement so you can easily change the pump at road side.

Don't worry too much about it....at least us Dodge guys have fixable problems.

crobtex

Agree. Nearly two years on mine and it has been flawless (now called HPFP). Now idling at 19, down the road at 18, and never below 16.