lift pump question

c20elephant

C20ELEPHANT
Apr 25, 2013
2,065
0
0
Phoenix, Arizona
Don't take this wrong as some might and don't want to make this a warranty thread but it is something to consider before drilling a hole in a perfectly good tank. What would the dealer have to say regarding the warranty after drilling and installing the sump and for a stock truck I don't believe you need one...
 

drperry

New member
Jan 4, 2015
21
0
1
I have no sump on my 2011... You only really need one if you need high volume, or the internal pickup is otherwise impaired.

The 1/4 tank problem only happens when there's a large amount of debris in the tank that plugs off the factory screen. I bought my truck used, so I puckered before I got it fired up... I had less than 1/8 of a tank, lol
 

pavetim

Member
Jan 10, 2011
299
5
18
You don't need one but wouldnt' it be better to have one? They are pretty cheap and very easy to install. And you would make use of pretty much every drop of fuel. I am thinking about putting one one my LML when I install my lift pump.
 

Troysalm71

Member
Feb 28, 2016
286
0
16
Bemidji, MN
I'll say this my truck on a hill will only drop pressure on my gauge at 1/8 tank. Other then that just fine 260 fass an a draw straw.
 

SoCalMike

Member
Dec 12, 2010
758
16
18
SoCal
What lift pump are you guys running?

I hate the idea of having to drill a hole in the tank for a sump to quiet the lift pump and not have 1/4 tank issues.
 

Hoffie

New member
Mar 10, 2015
212
1
0
Far East LA - aka Phoenix
I have an Air Dog II 165 mounted on the crossmember just in front of the fuel tank on my extended cab. That puts the lift pump between the front and rear seats. I can not hear it running (before the start of my engine or after starting the engine) at all and without crawling under the truck and actually putting my hand on it would be the only way to know if it is working.
 

clrussell

pro-procrastinator
Sep 23, 2013
5,928
399
83
Had a customer with a 11 with a fass 150.. It was terribly loud, put a beans sump on it and you can barely hear the fass now.
 

Brshan01

New member
Aug 19, 2013
55
0
0
Zimmerman, MN
I had an airdog 165:rofl: for about 3.5yrs before it went out, have a fass 150 now. Both were loud but can't hear them while driving. Sump was installed when the truck was new, had a leak last year. Look into fass's draw straw options if you're worried about it.
 

830king

Member
Oct 24, 2013
191
0
16
Central MN
I have no sump on my 2011... You only really need one if you need high volume, or the internal pickup is otherwise impaired.

The 1/4 tank problem only happens when there's a large amount of debris in the tank that plugs off the factory screen. I bought my truck used, so I puckered before I got it fired up... I had less than 1/8 of a tank, lol
×2! When I put a lift pump on my lly it was loud and always under a heavy load. In the winter around -10 and colder it wouldn't run...(before and after the lift pump). After I installed a beans sump it is so quite and smooth, plus it runs in the cold with no issues. I'm assuming my factory pickup straw was cracked or partially plugged. So if your lift pump is nice and quite I wouldn't add a sump....only if your having issues.

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