High mileage for a duramax?
- Thread starter sean1833
- Start date
I guess they are??
You should start selling them, because you will make a ton of money!
Congratulations, you figured out the solution to the LB7 injector problem! Even the smart engineers at Bosch and GM couldnt figure it out!!! And they've been trying to figure it out/find a solution for the past 12 years!! Hats off to you!!!!!:beerchug:
I vote we make this post about better filters being the fix to LB7 injector failure a sticky.
Ben
Well, what is the most common failure? Mr. D.
Shit design.... Imo the heat the injector sees being under the valve cover affects them some, i dont think ultra low sulfer diesel helps, and contamination but there is NO fix. Between our lb7 trucks we have tried alot of shit and they still eat injectors like a fat kid eats cake.
But i bet you sell alot of "your" kits by claiming a guaranteed fix
Actually I do and they are all still running. On those injectors. If it isn't the cure it sure slows it way down. Better filtration is a must to keep one alive. Fuel lube helps as well. If you remove air bubbles/foam from the fuel that helps with the lubrication.
The cylinder head temp I am sure is higher than the oil temp.
No, the low sulfur doesn't help, but the number #1 thing that rebuilders see is................contamination.
And better filtration doesn't help? Huh
Removing air from fuel supply doesn't help? Huh
Guess the law of averages and physics are diff where y'all live
Maybe we should just run them without filters.
The cylinder head temp I am sure is higher than the oil temp.
No, the low sulfur doesn't help, but the number #1 thing that rebuilders see is................contamination.
And better filtration doesn't help? Huh
Removing air from fuel supply doesn't help? Huh
Guess the law of averages and physics are diff where y'all live
Maybe we should just run them without filters.
You don't realize how far out of your league you are. You got lucky on 2 or 3 trucks . There were thousands that failed with YOUR kit.
Do you really think you discovered something? We are on the cutting edge here on this forum and you come up with " yawl need a better fuel pump and filter " GTFO.
I have a fass and 2 micron cat filters on mine and its even an lly. I still have an occasionally loud injector and smoke. Guess I need to see somebody about a refund! :rofl:
I guess so. I have not put thousands on. Prolly more like 12. And of these 12 the customers were pulling their hair out over this problem. Put the kits on and no More problems. These are people that work them, drive them daily, pull rvs etc with. Not Drag Racing, Pulling a sled, Dual pumps, and etc. Using the trucks for what they were made to do. Most have some type of tuner and exhaust, but not an extreme vehicle. If you get my drift.
I guess I have also been misunderstood or some of you looked right past the obvious. It is still a part with both electrical and moving mechanical parts, it will fail eventually like anything else. But prolonging the life is what we are achieving.
To the OP sorry for hijacking your thread. Was not my intention. I am here to help.
Hey each their own i suppose. I know we never found a fix in 400k on one lb7 and over 250k on the other. I would venture to say our trucks are as real world as they get. Hauling cross country with the 6 horse 48' trailers... I know for a fact your kit would not have fixed much,
You are correct contamination is a HUGE factor i have seen my rails each time with the injector replacements and replaced rails 3 of 5 times no difference... I k ow there is alot more to the system than the rails, but all the mechanics here claimed rail replacement the way too go. We run wix in the stock location and the transfer tanks were filtered by cat twins.
The issue i think fellas are having here is you claiming you found the "cure" and it is not remotely a new idea. Like mike and ben said these guys here are the go to duramax gurus in the world. Alot of innovators are here and if u can think it, these guys have tried it already and found somthing better
Imo a shit design and shit fuel that we are forced to use at the pump now are the issues
The stock Wix Duramax fuel filters are junk in my opinion. Parker/Racor or ACDelco is all I will run in the stock location.
Don't try and run one of those plastic PS filters on a LML. I had some left over when I sold my LB7 and started using them up on my LML. Under hard throttle the engine would cut out at about 80 mph. I finally switched back to a GM filter and it stopped.
I had a couple ac delco filters have the threads for the wif jacked up so i have been on wix since. And we ran out of the bed tanks 90% of the time infigure with twin cats and a wix we were filtering pretty well. 2 micron all around i believe
I did have a wix internally fail and it did the same thing hard throttle it would cut out, you could see where the insides had collapsed
I'm just giving you a hard time. I don't drive the thing much and I know which one it is. It doesn't do it enough to make me want to replace it at this point. I have to agree with others, lift pumps and filters are not a fix for lb7 issues. But they certainly don't hurt and if you've been lucky enough to fix a few that way that is excellent. I have not been that lucky both personally and at work.
OK. Texas guy here. Back on topic. My lbz has 315k on it and going strong. Pretty sure I'm about to start pushing my luck with the added power but she is running great right now.