another stock lift pump question

[zzman]

I replaced my first failed pump at 105,000 miles. Now I have the little pre-filter in the line. My question is, when the pump goes out again, can I replace the filter with a universal pump and pump through the bad lift pump? I noticed that when the old pump went out, I could blow throught the pump and thought that maybe I could piggy back another pump. Has anyone tried this yet? It seems like a quick fix to get off the highway at least. $250. toe truck bill hurts. I have a universal pump that will fit but haven't bought a stock replacement yet. What's your thoughts?

 

[rbattelle]

I believe the general consensus is that you can't pump sufficient volume through a failed stock lift pump.



Ryan

 

[Kirwin]

One more question

Has anyone had an issue with fuel gelling in the inlet fuel filter before the 03-04. 5 replacement lift pump that Geno's sells in their kit. Just wondering if it will clog that filter due to it being in the cold weather under the truck. Pumps are designed to push fuel, and an inlet restriction is a sure way of ruining one. What do yo think Ryan? Ken Irwin

 

[jelag]

We had a failed lift pump on our 04 with the engine mounted lift pump..... the electric pump at the tank, rated at 15 psi and 10 gal a minute wouldn't push fuel passed the failed lift pump...

We've since installed the tank lift pump and that truck now has over 200K miles after the change...

We also have an inline filter set on all our trucks... 10 micron and than a second stage of 2 micron between the current lift pump in the tank and the engine...

On our 05 we just had a wire failure, picture and story to follow when I get a minute... but the basis of this was a crack in the wiring loom, and the chemicals doing damage to the copper wire... thus turning off the life pump in the tank...

Once the fuel gels it will not pump out or pass until its fully melted... we've had to on early trucks put them in a shop(outside it was -15*F) and warm them up to 50*F to get them to start... . usually 6-8 hours of sitting and heat soaking... .

We now treat all fuel in the winter unless we buy it in CANADA. . where blending and treating to -35*F is country wide on all diesel sold...

 

[rbattelle]

Has anyone had an issue with fuel gelling in the inlet fuel filter before the 03-04. 5 replacement lift pump that Geno's sells in their kit.

Good question. I doubt there's been any trouble. If you think about it, the OEM 2003-2004 trucks had quite a long distance between the tank and the lift pump, and this didn't seem to cause a high rate of gelling in the line. What's the micron rating on the little inline filter? If it's fairly coarse (say 40 micron or more), I would suspect it will be fine even in very cold weather. You could also run a fuel additive in winter if you were really worried.

As an aside, I last refueled my truck on September 24th. The weather here recently turned cold (as low as 25°F in the morning). Last week I drove an hour at 27°F and had no fuel issues, even though I suspect the station I fueled at hasn't yet switched over to winterized fuel.

I do think the direct replacement pump offered by Geno's is a pretty good option for people who are running a completely stock fuel system. It can be changed on the side of the road, it's quiet, and can probably be relied upon for at least 50k miles.

Ryan