Lift pump questions
 

Ok so I'm pretty sure my lift pump is bad but I am not 100 percent sure but if I were to replace what would be better..... Getting another mechanical one or going with an electrical one. I turned up my afc a little bit and I didn't wanna do it too much in order not to hurt the transmission. I don't wanna do anything that will hurt it cause I don't have the money to just go get another one lol so I wanna knownthe benefits of both please let mr know! I just want a little more smoke and power.

you dont need electric one unless your doing serious fuel mods, rack plug, stix dv's
relavivaly stock engine mechanical one is just fine

Ok sweet and where could I get it? And what kind would be the best?

thats true to an extent there are huge advantages to a nice electric pump. you get a nice fuel filter, a good water in fuel filter. if you ever have to bleed your fuel system its easy as a click of a button to fill the lines. plus you can get much better higher pressure with a good pump. i will never go to a mechanical pump again after having an airdog pump.

if your on a big budget a mechanical replacement will do just fine. but if you can afford the extra coin, youll be happy for a long time. plus all the name brand pumps have lifetime warranties

How wll the electrical lift pump affect my motor and tranny??

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What do you think of the air dog 2?? Just trying to get all the info possible lol

you may not NEED one but they are a great investment for reliability. i would almost pay just to not have to fudge around with the stock filter. and it wont affect your motor or tranny.

And yourtalking about the air dog 2 correct j rad?

any of them. airdog fass all good products. they just bring the fuel from your tank to your injection pump. the injection pump is what actually delivers the fuel to your engine. you could have the worlds biggest lift pump but if you havent touched your p-pump you wont notice anything.

I thought the p pump was the lift pump?

nope. p-pump is your injection pump. heres how the cycle works...
fuel in tank, lift pump draws fuel from tank to filter to injection pump. injection pump sends highly pressurized fuel down injector lines to injectors.

Ok so your saying I need a different injection pump too?

no. p-pumps rarely go bad. what exactly is wrong with your truck? it may not have anything to do with any of the pumps.

Well I turned my star wheel a little bit hoping for a little better timing and smoke and it did give me some more get up and go and a little more smoke but my buddy said that when he did his same truck it was supposed to give more and since my lift pump has never been replaced it was thought I might as well get another one any way. And I'm wanting a little more smoke and power with out damaging anything .

well every truck runs a little different. i would say read up on tuning the afc and you can get a lot more outta it. stock lift pumps can last a long time. and you cant add much power before you start damaging trannys so be careful.

Yeah that's what I'm worried about. I'm pretty sure that my lift pump is bad but I would like to replace it anyway and I just wanna make sure that if I get the air dog if it would damage anything someone else also told me that it wouldn't damage the tranny and as long as I don't bump it up too much and stuff before I get my torque converter and valve body checked out not to tune it up much

Unless youre going to end up above 500 hp you dont need an electric lift pump. Spend your money on something else. If you want extra filtration, you can put that on without spending $500+ on an airdog or FASS.

What could I do to get a little more power and a little more smoke without damaging anything??

An Airdog isnt going to give you any more power either.

Get a pyrometer and boost guage and slide your fuel plate full forward, tune your AFC and see how you like it. And bump your timing up to 16 degrees or so.

And none of that will affect my tranny???

depends on how you drive your truck and what condition your tranny is in already, if you drive it nice and the tranny is in good shape then you will be ok with the above state mods

Ok cool I need to get my tranny checked =/ I have no idea what condition it's in

i doubt there is anything wrong with factory lift pump. I thaught the same so i got a airdog 150 and i HATE it. Dont know how but duel mileage went fromm 22 to 15-16 and thats all i did at the time so thats the only thing that could have droped it. I tried adjusting pressure, star wheel, and even put plate back in for a bit and nothing helped. I WOULD NOT GET AIR DOG!!! If u want to change fuel filters easy get filter housing and fitings to put it on frame like i did. Only thing nice about electric pump is u turn the key and it fills filter when chaning.

a stock lift pump is perfect for any truck that will be driven on the street . all it has to do is keep the filter full and it takes a lot of hp to drain that filter . If you want smoke take out the fuel plate completely move afc full forward , your tranny will be fine , my daily driver has 468000 with original tranny .

Question #1 - (to BWS 86) Not exactly sure how an Airdog could make your MPG worse, even if it tried really hard (unless you hooked something up wrong). It just can't do it, that I know of. Can someone enlighten me if this is even possible?:humm:

Question #2 - (to Dude_57) Why would a grown man (just assuming that you are, correct me if I'm wrong here) WANT smoke to pour out of the pipe? Afterall, it IS unburned fuel that comprises the majority of that black smoke, if not ALL OF IT. That "cool factor" wears out really quick when you are either at the gas station throwing your paycheck into the tank, or see people looking at you, shaking their heads and snickering at you. :nope::td:

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Dude_57, I just want to appolize for my past assumption. I see now from your profile that you are only 19 years old, and a firefighter! These both would explain your obsesion for "wasting money to make people think that you look cool" and "smoke". :rocking::c:

I dont know how it would make my mileage worse either but it wet down as soon as i put it on. I dont know how u could put it on wrong. I wish i knew what happened to milage if anyone does please let me know. Thanks

Lol I never said pour out smoke lol only when I mash on it. I drive it like a grandma north pole hooker. But of course everyone gets froggy ya know? An every once in awhile you just wanna show that gas
Engine dodge hemi you ain't messin around lol and thank you 94smokewagon. And how many miles did you have on it when you removed the fuel plate?

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Thanks b w 6 I been looking all around about the air dog

I do not hear to many good things about air dog. FASS pumps are a little more money but you get what you pay for. Watch out with moving the fuel plate stock trannys dont like that. Do a search on here alot of advice about AFC and fuel plate adjusting.

Re: Lift pump questions
 

What? First I've ever heard that

Air dog is miles ahead of fass , I have never heard anything bad about airdog

All fass is , is the first airdog

Airdogs are quiter and have longer life spans and are smaller in size because of advances in the design

These are facts not opinions , will a fass do the job yes ...however the air dog will do it better and longer and it will cost you less

You decide

I see it's going to be one of "those" days.... :argh:
Cummins doesn't have a legendary reliability reputation for running electric fuel pumps. That's a Johnny-come-Dodge/FASS/AirDog-lately thing. The early piston pumps are FAR more reliable and durable than any electric is or ever will be.
I'm pretty sure you need to put a fuel pressure gauge on there and find out what's going on. :nope:

Thats BS - Airdog was the first to bring out the pumps with lifetime warranty, they take up less space, are cheaper, and have MUCH better customer service.

have you ever owned one or are you going by a what you hear from the internet thing. i LOVE my airdog 2 and i probably wont ever have a mechanical lift pump again. and never once has it given me a problem

I have to agree with the Airdog being extremely good and reliable. Put a DF-165 of my friends '08 6.7 Cummins, and it has given him about 1-1.5 MPG increase. :tu:

HOWEVER, yes you can hook them up wrong! While I was mounting the pump, he was hooking lines up to the CP3. Stupid truck wouldn't start for a day (would run about 3-30 seconds and then die) but it was because he'd hooked the CP3 inlet line from the Airdog II to the CP3's return line. Yeah, that was a major dumb-butt thing on his part, but we should have caught it before an entire day went by! Talk about dropping your fuel mileage! It went to ZERO until we figured it out! :scare2: Hehehe

As soon as I can scare up the funds, I will be getting myself an Airdog II 165. Along with a fuel pump pressure gauge to keep an eye on things.

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Oh, don't get me wrong, I know what you mean by froggy! I romped the pants off of a vet last summer heading out of Fairbanks, AK heading toward North Pole. However, until we hit 103 MPH and he finally passed me, I didn't belch out hardly any black smoke, and that's with the mods on it. I like my diesel fuel combusted, not stirred!:c:

I guess that is just around here people prefer the FASS pumps.

Ok I definitely will and if it is bad I need to know what to go with hahahahha y'all are making this confusing lol!:argh: mechanical, airdog, fass, ahhhhh hahaha:s:

the fass is the very first original airdog. if you read the family history it will explain the whole story behind it. the fass has stayed the same and the airdog has continued to advance and grow. there is no doubt about it that the airdog is a better unit. they were both designed by the same person

Again, check your fuel pressure first.

No matter what these guys tell you, you dont NEED an airdog if you are going to be less than 500 hp.

I shall agree to that, you do not NEED a FASS, Airdog, or ANYTHING other than to test your current fuel pressure, see if it is up to snuff, and then replace your pump with whatever floats your canoe if it is not! Even if it IS a replacement stock fuel pump, which is all you really NEED to keep your truck from eating an injector pump. However, just about ANYTHING would be more RELIABLE than a replacement OEM pump. Do we all concure to this?:tu::c:

I'm not so sure I do because an oem pump dosn't require elictricity, therfore IMO is more Reliable

No, because he has a '95 with a mechanical piston pump, the most reliable, long lasting fuel pump ever installed on a diesel engine, bar none. The only reason they wear out nowadays is the crappy fuel they are being subjected to. Even so, they still outlast any electric.

Wasn't thinking of a mechanical one, haven't ever had to bomb anything but a Common Rail Cummins. Good point, though.:c:

And stop ganging up on me, I'm about to cry over here!!!