I've said it a hundred times, I'll be the first in line to get one if it will prolong the life of my truck. So far, the "experts" that I've read (Kennedy, Frank Blum among others) say either it isn't recommended, or, it is only needed to stop air from forming in the fuel lines, which, we have learned from Chuntag95, is normal and occurs in stock trucks.
One concern is the flow restriction but George Morrison put that one to rest a long time ago saying our pumps had more than enough pull to deal with an added filter:
In talking with a Racor engineer last week, our Bosch pump is consertavitely rated 60 inches! Our current OEM filter draws less than 8 inches, so an additional filter is no problem; in fact GM is currently working on a primary to put in between the present filter and the tank. What do you think that is telling us
It can therefore easily handle a both a primary and secondary fuel filter, especially if one or both are synthetic or microglass media. Moreover, if it is 'clean' fuel that the pump is processing, THAT is the key to both pump and injector life. i.e. if the pump has twice the load, if the fuel is ultra-clean, the increased load is much better than processing dirty fuel at half the load..
George Morrison, STLE CLS
Did you say those words that I attributed to you? In effect saying, "A lift pump is opening a new can of worms." Isn't teh RACOR the smallest an dpotentially the most restrictive between the CAT, MEGA and RACOR?
I agree if you have driveability problems, stalling etc. you need a lift pump. Experts on teh Aftermarket Fuel Filter thread dismissed teh cavitation and outgassing as not a concern.
Once again mostly negative personal BS but no real diesel-related contribution.
BTW, how can you be a diesel god if you don't even know we have the VP44 injection pumps in our trucks? It is also coupled with a gear type lift pump to feed it.
So, according the experts, unless it's fixing stalling/driveability problems, the lift pump ain't doing jack except introducing a weak link (60,000 service life) in your 225,000+ mile fuel system.
Brokers has two trucks, 800,000 combined miles w/o lift pumps running pre-oem RACORS. He's no more a myth than diesel god or GM smitty aka smitty. But, just becauwse he is saying something you don't want to hear, (that maybe you are barking up the wrong tree with this lift pump), you defame him, assassinate his character and try to ignore his good, positive news about our trucks.
Same "good ole boys" crowd in here doing the same crap as over on TDP. If you go against their line of reasoning, you'll get swarmed with a bunch of personal crap until they force the topic to be closed.
Once again, if you can show me solid evidence that a lift pump actually prolongs the service life of my truck, I'll install one the same day.