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  1. General Discussions
    2016 LML, so do they have lift pumps? I've read they do not, but my dealer service department replaced this item: Fuel Pump Module without Fuel Level Sensor, with Seal - GM (13578388) It looks like a lift pump...I'm confused. here is a photo of the part.
  2. 01-04.5 LB7 Duramax Powertrain
    Hi everyone, a while back I got into a discussion with a user named longhorn here who posted a fantastic thread about how he created his own lift pump. I decided to give the process a try myself and documented the process on video. Now 2 years later I have finally set down and edited up a...
  3. General Discussions
    I have a 2005 lly and have had a fuel system issue for a while now. First it died on me while I was driving and wouldnt start until I primed it and the tank would show E even though I had close to a full tank. I did some research and found out it could be getting air in the system through the...
  4. Interior
    I want to add the CAT fuel filter but I don't want the WIF check engine light on. I'm also adding the FASS lift pump. It's my first diesel and I had never heard of this fuel pump issue. I'm a paranoid twat when it comes to vehicles. I can't stand the slightest issue I had read on older models...
  5. Parts For Sale
    Have a dual Kennedy lift pump set up that was on my 08 from July of last yr till Thanksgiving, no longer have the truck, it the dual pumps and the frame mount, and a bout 1.5 ft of hose on each side of pump. Can ship it needed at buyers cost, it should not be to much I get a shipping discount. I...
    $300 USD
  6. 11-16 LML Performance Parts Discussion
    I installed a 165gph fass lift pump. It runs fine but when I turn key to on and let glow plugs warm up it fires right up. When i just turn the key to start instantly when engine is warm or cold after sitting for 20 minutes or so it cranks like 8 times then fires up. I replaced the o-ring on the...
  7. 06-07 LBZ & LLY Performance Parts Discussion
    Let me introduce myself, just hopped on the forum finally… I Installed my Airdog 100 on my lbz. Truck has an HSP cold air kit, 66mm drop in, dsp5 with stock, light tow, heavy tow, eco and race (150hp). on tune 4 & 5 truck acts like it’s cutting out and not getting fuel. Would the PPE fuel rail...
  8. 04.5-05 LLY Performance Parts Discussion
    I’m looking for the right lift pump for my lly, all stock besides 125hp tune, not sure what system to run, thanks!
  9. Aftermarket Mods.
    I’ve been looking at the Airdog 2 4g and 5g. I’m not sure which one to go with or if there is any big difference at all? id like to hear if anyone is running a different lift pump system.Thanks I’m advance for any feedback.
  10. 01-04.5 LB7 Duramax Powertrain
    Vehicle 2003 GMC Sierra 2500HD 6.6 LB7 Just got done changing out the Fuel Injectors and New CP3, all back together and go to start it and nothing. *Replaced the fuel system in the tank *Replaced one of the hard fuel lines which I accidently snapped *New ACDelco fuel filter *Rebuilt the fuel...
  11. 06-07 LBZ & LLY Performance Parts Discussion
    I’m installing a Kennedy lift pump with his full kit; controller, bracket, hoses. . . Had difficulty getting the oem fuel lines apart but got them got everything hooked up according to their directions but when I attach the “on/off” connector to a fuse (any fuse) the pump comes on. This is with...
  12. 04.5-05 LLY Duramax Powertrain
    Hi all, I’ve got an 05 that limps. When I bought the thing in December it limped, and its got a new set of injectors and a new cp3 (under my ownership). My questioning is of the lift pump. The truck works mostly fine around town, I can’t do more than 75 without sending it into limp mode because...
  13. 06-07 LBZ & LLY Duramax Powertrain
    I just fully deleted and tuned my lbz duramax will the HSP high flow bundle kit, and for some reason the truck now gives a check engine light (P0087) after 3,000 rpms. And I cannot figure out the problem. I just brought the truck in august with 275,000 miles on it. And it does have a airdog...
  14. 2011-2016 (Non Powertrain)
    Man I am honestly impressed. Went to change the screen for my inlet valve on the CP4 Today and after 170k miles this is what it looks like with a lift pump on the truck from the beginning. Not gonna say a lift pump saves your fuel pump but I will agree it helps it a ton along with good fuel and...
  15. 11-16 LML Duramax Powertrain
    Hey guys- Question for the masses. I have a 2011 Silverado 2500. It is pretty much bone stock with about 92k. I recently installed an Air Dog 100 (bone stock and not overworking the truck, saw no need for a larger lift pump), and a few days after the pump was installed the truck would not...
  16. 11-16 LML Duramax Powertrain
    Hey guys, long time lurker, but finally created an account due to an issue I'm having that I can't seem to find a solution to (I did search first!!). So, I have a 2015 3500 LML with 285K miles on it. It lived its first life as a race horse puller in the Midewest before I bought it. The truck...
  17. 06-07 LBZ & LLY Performance Parts Discussion
    I am new to the forum and have looked into lift pumps. I was wondering if anyone had any input on the caterpillar fuel filter housing/lift pump unit. Is it any better or worse than getting an air dog or fass pump?
  18. General Discussions
    I'm installing a Fass Lift Pump on my LB7 and I want to combine it with the Beans Sump. I couldn't find any info on what's inside the fuel tank, like slosh chambers or any kind of reinforcement. I would hate to drill the sump hole in the wrong place! For those of you that have done the sump...
  19. 04.5-05 LLY Duramax Powertrain
    I have a 2005 Kodiak C5500 with a Duramax (LLY). Drove it about 200 yards and it died. I could get it to restart if I continuously pumped the primer on top of the stock fuel filter. Got it home and made the following "fixes". New Fuel Filter. I have two DuraMax trucks so I have a lot of...
  20. General Discussions
    My airdog 1 150 went out a couple of months ago, wondering if it is bad on the cp3 to be run without lift? dont want to drain the rail and wear the pump or anything. run stock program dont have a tune
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