For those of you out there with GM Duramax training and/or experience, if you have a 2 micron pre or post OEM fuel filter installed, how long SHOULD a Duramax owner expect the injectors and fuel injection pump to last (on average of course) -

Other than adding additional fuel filtration, what else can the average owner do to maximize those component's service lives?
:confused:

.

Thats the MILLION DOLLAR question,Its a matter of luck.The members on this site have tried everthing to prevent it,but the injectors continue to fail.IMHO PISS POOR DESIGN. ANIMAL 4500 RV TRANSPORTER

Most abrasive wear is caused by 5-7 micron particles. If you have a 2 micron filter, use good quality fuel, a good additive, and keep the condesation out of the fuel system, the injectors and high pressure pump SHOULD last the life of the engine. But everyone here knows that's not likely to happen. Do a search on injectors and additive, you'lll have enough reading to keep you busy for awhile

Added Nictane system early on, ran additives, and still they went out at 60,000 miles.

Added Nictane system early on, ran additives, and still they went out at 60,000 miles.

"Speedracer" - Thanks for the honest response. :)

Although I liked "Diesel66's" answer much more, I guess by your response, Dmax owners are left at the mercy of GM/Bosch's poor injector & fuel filtering system design. :(

That being said, If you are a living example of what going the extra mile by adding extra fuel filteration and using good fuel additives gets (injector failure anyway), I think all Dmax owners who have experienced or are now experiencing injector failure have only one alternative left... that is to start an active campaign of reporting all injector & fuel system failures to someone other than GM. Like a government agency such at the NHTSA who deals in vehicle problems :eek:

Try the NHTSA at: www.nhtsa.dot.gov/ (http://www.nhtsa.dot.gov/) to file an online problem report or call the NHTSA at: 1-888-327-4236.

:exactly:

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Get over it. We had a total engine replacement at 11,000 and you don't hear me carrying on about it. **** happens. Buy someother truck if you have such a bug about the Dmax and go away.

Iam not trying to be a smart A-- ,when you pay 55K for atruck some trouble free miles would be nice. Being complacent wont get problems solved . Buying another truck is out of the picture,when your running a small business. ANIMAL 4500 RV TRANSPORTER

Iam not trying to be a smart A-- ,when you pay 55K for atruck some trouble free miles would be nice. Being complacent wont get problems solved . Buying another truck is out of the picture,when your running a small business. ANIMAL 4500 RV TRANSPORTER


Animal - I agree with you.

Maybe "Mrsspoolin" (the comments just above this) can afford to accept major costs and/or mechanical reliability problems, but many of us Duramax owners can't. And shouldn't have to. -:t

When you pay reasonable BIG BUCKS for any vehicle, you have the RIGHT to expect a decent level of reliability. GM has FAILED miserably in correcting their problems.
:exactly:

Reporting the problems are the only way to force them to CORRECT their design problem!!

:(

.

Oh yeah, being a military wife we have soooo much extra cash lying around. We get the point already, you're pissed at GM. We all get it, so quite posting it.

EVERY vehicle is going to have issues, hence a warranty. Suck it up and drive on, in PEACE. GM doesn't even make the injuector, Bosch does. Go b***h to them. Or better yet, go make your own.

Animal - I agree with you.

Maybe "Mrsspoolin" (the comments just above this) can afford to accept major costs and/or mechanical reliability problems, but many of us Duramax owners can't. And shouldn't have to. -:t

When you pay reasonable BIG BUCKS for any vehicle, you have the RIGHT to expect a decent level of reliability. GM has FAILED miserably in correcting their problems.
:exactly:

Reporting the problems are the only way to force them to CORRECT their design problem!!

:(

. You should go buy a Cummins. Oh yea, they also use Bosch Injectors and are also having issues.

EXCUSE ME I thought this site was created for discussion,good or bad about the dmax.I WILL NOT GO AWAY. ANIMAL 4500

injectors are apparently a problem and should be discussed. Go for it!!!

Animal, will you ever have anything good to say? If you weren't so negative people may want to listen what you have to say.

Haven't been following many of your posts but are you having issues with your injectors or are you just stirring the pot?

If you have had injector issues, sorry to hear that.

Peace.

Well let me put my $.02 in...my '02 truck (built 11/01) has almost 125k miles on it running the factory filter only. I do use Primerose 409 additive and to this day no injector issues. No failures and no fuel knock.

I may be the minority around here but for me this is the best truck on the market. The Cummins is showing some of the same problems with the Bosch system and f*rd has there own issues.

Good luck in your adventures.

MaxRock

Iam a realist,I dont like gm,ford or dodge using us the consumer as crash test dummys.I hope all the owners have good luck with there d-max. When using the trucks for hotshots or trailer delivery the 1000000 mile mark comes fast. Paying 4k to 6k for a set injectors is no fun. If the replacement injectors were improved it would make a bunch of people happy consumers,thats not going to happen. ANIMAL 4500

Stay on them.

Don't let the likes of "mrspoolin" spoil your mission.

Reading her other post's, I gather that her husband/partner "Spoolin Turbo" uses their duramax (which she helped soup up) for street racing in Anchorage, Alaska.
(Alaska, where normally, "men are men and woman win sled dog races")
When "Spoolin Turbo" blows it up at 11K, she must have relied on her Glock to intimidate some GM dealer's service manager to put a new motor in the truck under warranty, ( Called getting by on Army pay) even though she earlier tells us about tricking the truck up way past GM's intended HP and torgue.
(How could any dealership not have questioned the mods.)

It's no wonder that owners, like you and me who have had
legitimate premature failures with our duramax's can't get any satisfaction from GM.

For whatever reason, some people think that GM district reps don't use forums like this one, to read about the modifications every one proudly brags about and displays at the bottom of their posts, and track the abuses duramax's engines are enduring.
Some Police officers do the same and the lame excuse of trying to talk your way out of a ticket, with the stories like the truck is a diesel or the waste gate must have stuck or diesels just naturally put out large black clouds of smoke, have long since gone the way of the DODo bird.

Everyone with a valid warranty claim gets tarred by GM dealer service managers with the same brush, (So! "How did you disquise the mods)

No wonder GM/Bosch are so lackidasical about solving legitimate duramax injector problems.To satisfy GM, dealers are spending more time looking for mods, to justify refusing warranty claims, then they are fixing the valid problems.
Just go to a dealership service area Monday morning and see the crowd of "only drive it hard on the week-ends" trying to bull**** their way into a warranty claim.

Even Keith Black of dragster engine fame wouldn't warrant his strongest built dragster engines, because somebody would take it home and try getting the damm thing into thinking it can produce double the horspower or torque.

The power chip is one of the biggest set backs to modern electronically controlled, diesel injected pickup engines.

Some one has to first seperate the fools who want to be noticed or go fast for no reason, from those who are quite content to own and drive a truck with a engine that would give them 500K of reliability.

WTF are you talking about? We don't street race, I carry a HK, and there were no mods on the truck at the time. We were in Arizona. Getting the engine replaced was GM's call, we were in Nevada at the time. why don't you get your facts straight before you slander someone. We can do what we want with our truck, it has been out of warrenty for some time now.

STFU, you don't know me, or anything about me.

Sorry about that,

There must be another couple in Alaska who are on this forum that go under the nick of "MrsSpoolin" (with 353 posts) and "Spoolin turbo" who loves street racing on his way to the "wally mart in Anchorage"

Stay on them.

Don't let the likes of "mrspoolin" spoil your mission.

Reading her other post's, I gather that her husband/partner "Spoolin Turbo" uses their duramax (which she helped soup up) for street racing in Anchorage, Alaska.
(Alaska, where normally, "men are men and woman win sled dog races")
When "Spoolin Turbo" blows it up at 11K, she must have relied on her Glock to intimidate some GM dealer's service manager to put a new motor in the truck under warranty, ( Called getting by on Army pay) even though she earlier tells us about tricking the truck up way past GM's intended HP and torgue.
(How could any dealership not have questioned the mods.)


Some one has to first seperate the fools who want to be noticed or go fast for no reason, from those who are quite content to own and drive a truck with a engine that would give them 500K of reliability.


One: We don't like Glocks, we own Heckler and Koch pistols.

Two: It has been said again and again that injectors should not fail irregardless of pulse duration, timing, or pressure. The problem is the impurities in the fuel combined with bosch's apparent lack of quality control.

Three: When an injector gets stuck open and subsequently destroy's the piston rod and piston itself, you're going to get a new engine. Duramax'es are not supposed to sound like a Detroit from a '77 Peterbuilt.

Four: I don't appreciate personal attacks on me, or my wife.

Five: If the injectors are bothering you, buy something else. We're out of warranty now, without having been under warranty for A WHOLE YEAR because of the mileage we have put on the truck. Guess what? We still drive it, and if the injectors go, big deal. That's when we get Kennedy 20% over's. If things break, replace with better parts... that's what I have always done. Reinforce the failure so it doesn't fail again.

Six: Have you ever looked in the mirror around here?
http://www.dieselplace.com/forum/search.php?do=finduser&u=9131
I mean, every post you have is whining about the duramax. Go buy a frigging dodge or ford or something.

I Give Up, the aftermarket injectors are rebuilt.Why is the only thing some people can say is BUY A FORD OR DODGE,instead of trying to GET THE PROBLEMS SOLVED. I will PISS ,MOAN ,WHIN, AND YES ***** UNTIL THE END OF TIME. Yours truly ANIMAL 4500 RV TRANSPORTER

None of my comments were meant as attacks on you or your wife.
I just used you're nic's and refrences to you're posts on this site.(You with 757 and you wife with 353) as reference of why GM is having such a difficult time dealing with the real honest to god problems that occur with the duramax engine.

I have no quarrel with the duramax itself, I work with Isuzu Diesel engines almost daily and they are one of the most reliable diesel engines built.

I'm grinding my axe on this site, because of the way GM is treating some of it's formerly good customers, by failing to differentiate between the hot rodders and those customers who were led to believe that they were buying duramax trucks, they could drive in stock confiquration with confidence and reliability.
I have owned over 30 GM vehicles in my life time and I never ever had one problem I could'nt fix.

When my 2004 Silverado 3500 d/w 4X4, quit when I was making one of my frequent trips up the Alaska Highway, it had less than 4000 miles on it.
Because a greedy GM dealer in Whitehorse, Yukon found a opportunity to commit fraud, by claiming to have changed all eight injectors in a LB7 in 3.5 hours and the truck quit again less than 200 miles later.
The dealer to cover up their fraud told GM that the failures were due to fuel contamination, GM just slammed the door in my face, and no amount of communicating with GM on my part would get me even so much as one face to face meeting with a GM district Rep.

A year later, the truck still sits, my Lawyer has rounded up everyone involved and a Judge in a courtroom will shortly decide who has to do what.

I'm sorry about the mistaken reference to the "Glock", you have to understand that I live in a police state where every police officer/custom's officer and yes even the guy, shoo-ing bears out of the park garbage can's, has one.
Your wife explicitly stated HK.

Just out of curiousity, did the service manager in Nevada also have to watch his rear view for who followed him when you're Duramax blew.

I stick to what I said earlier about Alaska.

"Where men are men, and women win dog sled races"

Well let me put my $.02 in...my '02 truck (built 11/01) has almost 125k miles on it running the factory filter only. I do use Primerose 409 additive and to this day no injector issues. No failures and no fuel knock.

I may be the minority around here but for me this is the best truck on the market. The Cummins is showing some of the same problems with the Bosch system and f*rd has there own issues.

Good luck in your adventures.

MaxRock

Dumb ? but what does fuel knock sound like cause At work we have an 04 LLY and It is twice as quiet as mine idiling and I noticed when I rode shotgun the other day which never happens when my girlfriend would slightly give it alittle fuel and let off and then do it again I could hear for a second a louder than normal knocking both times. It sounded like an octane knock like in my older 350s. Is that what your talking about? I think that my truck runs great and does seem to be making or loseing and oil with 15,000 miles on the oil on a synthetic oil. Just looking for help.

Thanks
Nathan

P.S. Come on guys and gals let the talk be of the trucks and not of the people owning them!!:)

Based on a survey done a few months ago, there wasn't any difference in failure rate of injectors using the extra filtration or not. Personally, I think if they are going to fail, they will. You won't dodge the bullet with filtration or fuel additives, it's just luck of the draw when you will need them replaced, and they will all need replaced sooner or later. If the injectors were designed correctly, I would think 200,000 miles would be the norm, not the exception which is what that mileage seems to be based on the data on the board so far. Had 2 replaced at 11,000 miles on an '04 myself, and had extra filtration and used stanadyne lubricity since it was new.

Isn't there a TSB extending the warranty on injection system to 200k mi or 7 yrs?

Let's take a second and inhale and exhale!!! :muahaha:

For starters, everyone one here must understand that there are hardcore Duramax owners who can't go with being totally stock, they must have more, must have a suncoast, TTS extreme, Juice HOT Attitude, Prediator, 600 HP. 1100 Torque, and so on, and it's ok, it would be interesting to count all the signatures with it in there.....:eek:

On the other side there are totally stockers that HAVE run into serious treatment issues at the dealerships service departments looking for mods, just because I run Amsoil, the dealer was looking for mods since I work on my own truck, and nope, no pipe plug hole in the manafold or anything plugged in for mods, and I was left alone, but being treated like this is not very good, and down right embarrassing, everyone that runs mod's and then knowningly breaks something and then wants GM to filp the bill has contributed to this delima that's what's going on right now, everyone must agree that this has led to this, and you know it.

I personally went to John Kennedy's open house and met many guy's there including Eric Merchant, I drove over 5 1/2 hours to meet up and see what these DMAX'ES were all about since I bought a new 2002, and after I saw what they have been doing, I was very impressed, and I don't care if they run mod's and do what they do, but it still stands today, if there are issues and if these mods are found, bingo, that's why I have never and never will install any mods for that reason, so why do I get treated like a piece if $*** at the dealer with all this warranty crap going on ??? You have to expierence it to know how it feels.....

I personally have not and will not use this site as a venting ground, I have stayed away from here for that reason, if I don't like something, I will find a solution on my own, I don't need to create heat and frustration with several on here, it's gets old and people on here don't like reading major negativity day in and day out, come on already.....

If you want to make a statement, don't give the general your satisfaction, and get something else, the ones one here will keep GM busy for a long long time in warranty claims.....:muahaha: :muahaha:
Dyindmax:
Sorry to hear your troubles, what brand of truck you driving with you Duramax on this sideline???

None of my comments were meant as attacks on you or your wife.
I just used you're nic's and refrences to you're posts on this site.(You with 757 and you wife with 353) as reference of why GM is having such a difficult time dealing with the real honest to god problems that occur with the duramax engine.

I have no quarrel with the duramax itself, I work with Isuzu Diesel engines almost daily and they are one of the most reliable diesel engines built.

I'm grinding my axe on this site, because of the way GM is treating some of it's formerly good customers, by failing to differentiate between the hot rodders and those customers who were led to believe that they were buying duramax trucks, they could drive in stock confiquration with confidence and reliability.
I have owned over 30 GM vehicles in my life time and I never ever had one problem I could'nt fix.

When my 2004 Silverado 3500 d/w 4X4, quit when I was making one of my frequent trips up the Alaska Highway, it had less than 4000 miles on it.
Because a greedy GM dealer in Whitehorse, Yukon found a opportunity to commit fraud, by claiming to have changed all eight injectors in a LB7 in 3.5 hours and the truck quit again less than 200 miles later.
The dealer to cover up their fraud told GM that the failures were due to fuel contamination, GM just slammed the door in my face, and no amount of communicating with GM on my part would get me even so much as one face to face meeting with a GM district Rep.

A year later, the truck still sits, my Lawyer has rounded up everyone involved and a Judge in a courtroom will shortly decide who has to do what.

I'm sorry about the mistaken reference to the "Glock", you have to understand that I live in a police state where every police officer/custom's officer and yes even the guy, shoo-ing bears out of the park garbage can's, has one.
Your wife explicitly stated HK.

Just out of curiousity, did the service manager in Nevada also have to watch his rear view for who followed him when you're Duramax blew.

I stick to what I said earlier about Alaska.

"Where men are men, and women win dog sled races"

The service manager in Arizona asked me if I had any aftermarket stuff on the truck, I said no. Just had the Banks stickers on the topper since they made good stuff and I was going to get it once the warranty was up.

The Senior tech who checked out the engine, and installed the new one, bluntly stated when I talked to him, that power adders wouldn't cause injector failure. If it's going to go, it's going to go. The only things that can cause injector failure directly are either poor parts, or poor fuel.

They not only fixed the truck, they kept my loaded down trailer full of all my personal belongings in the world, inside their locked storage lot they had while the truck was in the shop.

Then, there's the dealer here in alaska who when I brought the truck in because it has a vibration and noticable one cylinder tone change at certain RPM's they said "it sounds normal" and wouldn't even check the balance rates. Oh well. Not like it matters now, I'm out of warranty for everything except the engine and transmission.. Transmission won't matter soon, and neither will the engine because both will be upgraded.

If a dealer screwed you, that's between you and the dealer.

You are so right.

The problem is that big 3 originally designed their diesel powered pickups as Grampa trucks to pull RV's/boats etc and as lite duty pickups for commercial user's that ran high milage and wanted lower operating/maintenace costs.

RV's got bigger, boats got longer/heavier and commercial user's started hauling/towing un-godly amounts of weight on them.
The Big 3 kept adding little dashes of spice (Power) to retain market share.
Which brings us into the new millenium

One day, some kids on the way home from a monster truck show, somehow
got their hands on a couple and the race was on.
"Hell it could smoke both rear tires from a stop lite", let alone only one in a tight 90 degree turn.

And the big three jumped in with all six feet.

"The hell with Grampa Trucks", more kids out there with their hats on backwards, than Grandpa's pulling RV's.
"But kids don't have any money", "hell we just get em to sign on the dotted line, give em 40-50 thousand dollar trucks with no money down and their asses are hooked".

Today, the big three are in a dilemma, lots of those trucks sold are being destroyed by the kids at truck pulls/racing etc,
always got money for trick parts/chips/tires etc, but not quite enough for the truck payment. Dealerships tied up with unrealistic warranty claims.
Kid moves back in with Ma and Pa, some Pa's even help out with truck payments so that they can get to drive it occasionally.
or the other scenario, Pa buys the truck and the kid still gets to break it
on week-ends and lets Pa take it back to the dealership on Monday and swear on a stack of bibles that it was never rode hard or put away wet.

The big 3 are going to have to realize that the party is over and it's time to clean up the mess. Just take a look at the large inventories sitting on dealers lots. (even with incentitives, at $50-60K, the kids have realized the party is over.

The big three can begin by scrapping all the HPCR rocket ship technology and go back to putting direct injected diesel engines in pickup trucks, (ones with a steel cable/rod from the accelorator pedal to the injection pump) and maybe even a 15 speed manual shift tranny.

In the case of the Duramax, I'm sure Isuzu could very quickly redevelop the 6.6 into a reliable mechanical linkage controlled fuel system.
Cummins already had it right once upon a time in the 5.9.

I remember the days not to long ago when only drivers who knew how to shift two transmissions at the same time, got to drive any diesel powered truck.

You are so right.

The problem is that big 3 originally designed their diesel powered pickups as Grampa trucks to pull RV's/boats etc and as lite duty pickups for commercial user's that ran high milage and wanted lower operating/maintenace costs.

RV's got bigger, boats got longer/heavier and commercial user's started hauling/towing un-godly amounts of weight on them.
The Big 3 kept adding little dashes of spice (Power) to retain market share.
Which brings us into the new millenium

One day, some kids on the way home from a monster truck show, somehow
got their hands on a couple and the race was on.
"Hell it could smoke both rear tires from a stop lite", let alone only one in a tight 90 degree turn.

And the big three jumped in with all six feet.

"The hell with Grampa Trucks", more kids out there with their hats on backwards, than Grandpa's pulling RV's.
"But kids don't have any money", "hell we just get em to sign on the dotted line, give em 40-50 thousand dollar trucks with no money down and their asses are hooked".

Today, the big three are in a dilemma, lots of those trucks sold are being destroyed by the kids at truck pulls/racing etc,
always got money for trick parts/chips/tires etc, but not quite enough for the truck payment. Dealerships tied up with unrealistic warranty claims.
Kid moves back in with Ma and Pa, some Pa's even help out with truck payments so that they can get to drive it occasionally.
or the other scenario, Pa buys the truck and the kid still gets to break it
on week-ends and lets Pa take it back to the dealership on Monday and swear on a stack of bibles that it was never rode hard or put away wet.

The big 3 are going to have to realize that the party is over and it's time to clean up the mess. Just take a look at the large inventories sitting on dealers lots. (even with incentitives, at $50-60K, the kids have realized the party is over.

The big three can begin by scrapping all the HPCR rocket ship technology and go back to putting direct injected diesel engines in pickup trucks, (ones with a steel cable/rod from the accelorator pedal to the injection pump) and maybe even a 15 speed manual shift tranny.

In the case of the Duramax, I'm sure Isuzu could very quickly redevelop the 6.6 into a reliable mechanical linkage controlled fuel system.
Cummins already had it right once upon a time in the 5.9.

I remember the days not to long ago when only drivers who knew how to shift two transmissions at the same time, got to drive any diesel powered truck.

:confused:
So based on all of your guys combined knowledge and experience, it boils down to the fact that getting long life our of the injectors is just luck (a crap shoot!). One should not expect to get more than 50 to 100 k miles out of them???
:(
.