Bought the truck on 3/23 and had to haul it to the dealership the next day. Truck was missing and smoking with 100 miles on the odometer. Dealer says it is the FICM. So I wait till yesterday to get this part in and guess what.... no change. GM says to re flash the ECM with software they have to write becuase the truck is so new. Dealer gets the software last night and still no fix. Gm says they are seeing this problem develope, but they really don't have any idea what to do. I have been going round and round with the dealer because this truck is how I make a living and it's pretty hard to do that when it sits at the dealer for weeks on end. It looks like I'm probably going to get a whole new truck first of the week. They have until noon Monday to get it running or they get to own the truck again. Dealer has found a similar truck in Mich. that they are trying to trade for on Monday. If anyone has this problem when the truck is new just get out of the deal and find another truck. I should have done this when it all started instead of losing money for a week.

interesting. my new 2005 started running rough and smoking bad after a few hundred miles and mileage dropped a couple per gallon.

took it in and they reprogrammed it after much issue (too new) without fixing the problem. service manager says they have to jump through a bunch of hoops to prove it is an injector issue to get gm to release the parts.

will take at least a week to fix. good thing i have other trucks.....but driving the pt cruiser rental courtesy car blows.....except for the better mileage.

hmmmmm......i wonder what the tow capacity on a pt cruiser is..........

Here's some advice, Run away fast, and don't look at or take another GM diesel. This has been a reaccuring problem with 95% of the LLY's on the road.... As soon as my lemon law wraps up(in the next few weeks) I will be happy to post the info my lawyer has ubtained from GM legel.

I'm glad I own one of the 5% that runs OK.
Seriously, Mine started bucking and ratteling at around 10,000. took it to the dealer, hooked up the tech2 and said I had a bad driver for #4 injector. Replaced the fuel module? and all was well.

Jeff

Here's some advice, Run away fast, and don't look at or take another GM diesel. This has been a reaccuring problem with 95% of the LLY's on the road.... As soon as my lemon law wraps up(in the next few weeks) I will be happy to post the info my lawyer has ubtained from GM legel.
interested to know what kind of calculator you are using...

They all have problems.

Mines runnin great, I just changed the oil @ 2000 miles. Think I will leave it in the garage and take the bus, that will ensure no future problems. ;) GrayMax I hope the dealer gets the problem figured out in a hurry. Keep us posted.
Rick.

Yes, Grey_Max, Keep us posted. My truck is due in the first week in May. I was going to pay cash, but now I'm thinking of taking the 0% financing option for the first year or so... Then the dealer will have to worry about me making payments on a broken down truck instead of me worrying about them fixing my truck! Who's got who over the barrel then? It still sucks they are messing with your livelyhood though. I hope it works out soon.
:Wedgie:

19000 miles and no issues, mine must be special...

I'm glad I own one of the 5% that runs OK.
Seriously, Mine started bucking and ratteling at around 10,000. took it to the dealer, hooked up the tech2 and said I had a bad driver for #4 injector. Replaced the fuel module? and all was well.

Jeff
Me too... 11 months old and almost 30k, no injector issues.

Bummer Gray Max, hang in there! Go for the new truck and make them pay a couple payments and throw in some free stuff. Thats what we do at the MB dealer I work at!
Den.

Oh, I must be in the 5% club too. LOL. Good Luck Max!

http://www.dieselplace.com/forum/images/smilies/eek.gif Not Good news at all ! Make sure you get a New truck with no miles on it.
Check the Build dates on the truck you have and the one you will be getting.
Don't get one built around the same date as it might have the same problem.
GM has a real bad problem with parts for the Dmax trucks. They know about this, but don't seam to care.
From what I know they get the parts sent to them JIT ( Just in Time) so no spare inventory. so if you get a truck built around the same time it might have the same defective parts on it.

My 2004.5 LLY GMC was at the dealer for four weeks waiting for a wireing harness with less than 6000 miles on it. It has been running ok the Last 4000 miles.
Good Luck !

I must be a 5 %er too. 17000 miles and never been back to a dealer or missed a beat, and me truck is not babied either

Mine was a lemon right as I left the dealership, but they spent a week working on it, ( i got a freaken Aveo for a loaner car -:t ) and it's been perfect since with 4500 miles on it. Take the new one, and hopefully you won't have any problems. I love mine.! Just towed a friends 13,000lb boat, and the truck laughed at the load... :ro)

Another 5% truck. Built 2-10-04 (tuesday) brought home 3-17-04 (St. Pats Day). As of today have 34,800 trouble free miles. GM did fix my A/C that wasn't broke per the stealer. Said all Duramax's A/C blew warm air. Yup, I believed that one. :eek: Drive 60 miles a day round trip to work so it's not doing alot of setting. All two lane highway usually in the 55 to 65 MPH range.

Only problem is my lack of BIG gonad's to turn the Predator loose. Just running at the 40 HP level gives a stronger response. I love it :ro) :cool2: :exactly:

Maybe we should start a 5% club? My truck is fine with 9000 miles, andI hot rod the hell out of it. Dad's is good so far at 10000. Both built april 04.

Another member of the 5% club!:ro) I have almost 6k and the only issue was the reflash for idle surge and smoke. Mine was built in August 04. I had the Edge Juice for about 1 week before sending it back for the upgrade and just got it back yesterday.

Regardless, I would hold out for the new one - You WILL be satisfied once you get what you paid for! ;) Believe me you want to avoid the Furd at any cost :eek: What you are going through is minor compared to what you could have!

24000 & all's good
5% club , has a nice ring to it




19000 miles and no issues, mine must be special...

another member of the 5% club here.

by the sounds of it gm needs to go back to the lb7's at least the ran good except for injectors in the early years. Why didnt gm just keep the lb7 and redo the computer system to give the extra power?

I had that same problem with my truck on the freeway.......65-70 mph, would knock stumble and smoke..are these the same symptoms?? These happened at 7k miles....I now have almost 25k on my truck and since ive been putting in the stanadyne it hasnt had 1 problem.....

heres some post you might wanna check out......
http://dieselplace.com/forum/showthread.php?t=13033&highlight=knock+stumble+smoke

http://dieselplace.com/forum/showthread.php?t=21003&highlight=knock+stumble+smoke

http://dieselplace.com/forum/showthread.php?t=14916&highlight=knock+stumble+smoke

http://dieselplace.com/forum/showthread.php?t=27433&highlight=knock+stumble+smoke

Can I join the 5% club also, he said 95% have problems hummm wonder were he got those facts? My truck is not babyed eather, its used as a truck and not some show place trophy driving down the road its all stock.

I'd be happy to tell alll where the info comes from right after I settle with GM, I think most of you are going to be pretty surprized to learn that GM is fully aware of the mis engineering of the fuel and emission systems on these engines. I can give you guys one hint.. Does Bosch ring a bell? ( I work for them). Treatments and reflashes are just delaying the enevitable. The injectors are not built for the duty they are seeing. Thats why after ever reflash the problem comes back after a short amount of run in.

BTW Not trying to start anything with these post just giving you all the facts as I know them.

Wow all cloak and dagger an' all dat stuff...:rolleyes:

So I guess your saying the injects. are the problem?? I will have more info tomorrow. The dealer has until noon tomorrow to get my truck on the road or they own it again. With my luck I am about 75% sure the new truck will have the same problem. I hope I am wrong. It would be interesting to see GM service records and see how many have problems. I'll let you know what I find out.

Consider running Stanadyne when you get the new truck. I know it seems cheesy to have to put an additive in a new truck, but i have been running it since they first fixed it, and knock on wood, no problems. Runs like a champ.!

5%er as well....24,000 trouble free miles. Gotta love some of these people...... and as everybody can tell by the sig....I baby it;)

5%er here. 2000 miles and no problems yet (knock on wood)

5% er 7000 miles :ro)

5% here as well had my truck a year now 30,000 miles. I did have a flash after I installed Banks. Good dependable truck so I guess I am 95% happy with it.:)

I think most of you are going to be pretty surprized to learn that GM is fully aware of the mis engineering of the fuel and emission systems on these engines.

By the way....the injectors have been a problem since the first common rail hit the streets here in the US. Its not brand specific...ask dodge. Get yourself a plate and block off the egr that takes care of that. If you don't like codes...then a finger stick takes care of that.

I think most of you are going to be pretty surprized to learn that GM is fully aware of the mis engineering of the fuel and emission systems on these engines.

By the way....the injectors have been a problem since the first common rail hit the streets here in the US. Its not brand specific...ask dodge. Get yourself a plate and block off the egr that takes care of that. If you don't like codes...then a finger stick takes care of that.
I'm not an expert, but from what I've heard, I'll agree with you on the Emissions... EGR on a diesel is a BAD IDEA. I don't believe there is truely anything wrong with the fuel system, I think it lies more with the fuel. If I'm not mistaken, the same system has been in use in Europe, and I doubt they have the problems we do since thier fuel is cleaner...

In the 5% with 15,000 miles,most towing.

cougar281....I beleive you are right on the dirty fuel....wonder what bone head deceided to test the injectors on european fuel for use in the US? Brilliant!

Im a 5%R too, only problem I have had in my 16K miles and an 1800 Mile 9000K load from Cali to Texas was the freakin Deer I took out a couple days ago that caused about $2k damage to my baby!!!! I will now shoot all Deer I can to get my $$ worth!!

I like to shoot deer....can I help?!

Dealer is going to replace ECM in the morning, I think off of another LLY sitting on the lot. I assume they can reprogram different VIN's and other truck specific parameters into the ECM?? I don't know if I should just opt for a whole different truck or keep this one if they can fix it. I guess I'll decide tomorrow.

I ALSO BELONG TO THE 5 % CLUB AND WOULD LIKE TO STAY THIER !!!!
I HAVE 1150 MILES ON THE TRUCK NOW (2 WEEKS OLD) AND ALL THIS DISSCUSSION ON THIS MAKES ME SKEERED!!!!!!!!! THIS IS MY 1ST
D/A , AND LOVE THE THING SO FAR ...... KEEP US POSTED

THE05HD

Why did you by a Gm if you knew that 95% of them have problems. I am pretty sure the people @ Bosch know the injectors have had problems.

My 04.5 has been to the shop four time in a year for 3 injectors and the reflash. and thats not counting the 4 times it when in and the dealer claimed nothing was wrong.

Count me in along with the rest of you 5%, I couldn't be happier with my truck, and its running like a bear, as a matter of fact the fuel mileage is starting to climb as it gets broke in, I'm now getting around 17.5 MPG up from a low 16, another thing, I'm also using Stanaline fuel treatment along with the extra fuel filter.

22K on mine, no engine/trans problems, except for buzzing at 1500rpm (windshield trim).. need to get that fixed :^)


JJ

3500 and going strong. 5% club forever!

From talking to others with similar problems it seems as though this particular problem presents at very low milege i.e less than 200. Dealer is swapping ECM's as we speak so hopefully I'll have a truck by this afternoon. I think GM is still the truck to beat, I just hate being the percent that has early problems. Hopefully the ECM fixes it:beerchug:

I'm a 5%'er! 13,000 trouble-free miles. :ro)

31000km and only one #7 injector that took only 3 hours to fix and i got to test/bag any truck on the lot i wanted hows that for sevice.

I also am a member of the 5% Club. 11,500 miles and Extremely happy with my 2500HD. I think the gent that started the 95% Club should sell it immediately so that he can buy one of those "Nice Riding" Ford's or Retro Dodge :lol: Hemi's. Classic!

Well, another 5% er here I guess. Almost 14K with no problems. Built on 6/4/04. No overheating issues either when towing. ;)

As far as the EGR and diesels being a bad thing.

All of the new Detroit, Cummins and CAT big diesels have some type of EGR, government required, each uses ther own type of system. Not saying that haven't been issues, but unfortunatley the government has chosen to stick there nose in our lives again -:t

I would certainly think that if it was a problem with 95% of the LLY's then GM wold have to issue a recall or TSB.

I'll keep my fingers crossed.

All of the new Detroit, Cummins and CAT big diesels have some type of EGR, government required, each uses ther own type of system.
ACTUALLY.... Cat diesels do not have any sort of cooled EGR system. Much research was conducted with the finding that EGR was not good for the life expectancy of the engine. Plus, cooled EGR is good for a 2.5 - 4% REDUCTION in fuel economy.

Cat instead uses ACERT technology in it's new line of engines.
For more reading: http://www.cat.com/cda/components/fullArticleNoNav?ids=230096&languageId=7

Well..... Dealer got the truck to stop smoking and missing, but now it has a really loud knock. I told the dealer I was done with this truck. I had to go to a CC but I now have a truck sitting in the driveway. I hope this one runs.

Haven't seen the answer posted any where else... figured I'd post the resolution to this problem.

On May 16th a service bulletin was finally published regarding this issue. On Pontiac-built trucks with the Duramax assembled between March 3rd and March 15th, there is an issue relating to the surge tank and coolant level sensor. The coolant level sensor is leaking internally and coolant is "wicking" (moving inside the wire insulation) in the wire from the surge tank to the ECM on the other side of the truck. As coolant gets into the ECM at the other end of the wire, the ECM is damaged.
Since the ECM controls the FICM, the trouble codes look like it's an FICM problem, but the problem is really the ECM.

The ECM on Steve's truck was replaced (before the bulletin was published), which fixed the problem temporarily. Soon thereafter the problem returned though.

The truck has now been fixed as per the bulletin with a new surge tank (including new coolant level sensor), new ECM, and new wiring. It runs fine now. The truck is still in new inventory, if anyone wants to buy it.

I'm guessing GM had to use a different supplier for the surge tank and/or coolant level sensor for a short time, and that's why the problem only affects trucks from Pontiac in that short 13-day range.

Tony

So far I'm a 2.5%'er, both my LLY's run great.

How do you find the build date? 10,000 miles and no problems!!

20,000+ no problems, I must be in that 5% also:)

I have come in contact with two vehicles with the same symtoms and in both cases it was a faulty electrical connector at the injector.

Here's some advice, Run away fast, and don't look at or take another GM diesel. This has been a reaccuring problem with 95% of the LLY's on the road.... As soon as my lemon law wraps up(in the next few weeks) I will be happy to post the info my lawyer has ubtained from GM legel.


:idiot:

5% here too.

2005 LLY Crew Cab 4WD LT

10k and still in 'da club ;) !

7000 trouble free miles. Blows some black smoke every now and then though.:D

Another 5 percenter here. I do baby it though. ):h

15,000 miles of abuse at much higher than stock power levels and not one single problem.

Funny how the service departments aren't filled with dmax trucks. Never see one behind a tow truck or on the side of the road either.

Life is good at 5%

5% also so far (knock knock)
tmoenste--- yeah I think I'll pass on buying someone else's problems

Fitter anything you can tell us now???

I'm in the 5% but the way I flog it sometimes I probably shouldn't be! 30,000 miles and running strong, even the stock tranny.

I'd like to get back on the Bosch issue with the common rail injection. I agree that Bosch has issues but I believe Bosch supplies all of the Big 3, right? I work for Delphi (formerly GM) and came across a intranet posting this week that Delphi has been awarded a common rail injection system for use on Daimler-Chrysler's Mercedes truck engines. I wouldn't be suprised to see something similar developed for GM since they are our largest owner and customer.

21000 miles and no problems as well. :ro) Hopefully those of you experiencing problems will have them fixed in short order. JJ :)

Add me to that 5%, twice.

32k on my 04, and another 3k so far on my 05, not a problem.

i want to be in the 5% club but i don't think there's room. 15,000 without a burp.

New truck is running great with 16,000 miles since 4/5/05:eek: . The only problem has been a fuse problem that seems to be caused by the co-pilot, but that is still being investigated.

Ahhhh, the 5% ers seem to be growing exponentially (sp)! Errrrrr, life is good at 5%. Bought my used with 6k, now has 22k. Ran it at 5 from lights showing off to my kids so much that I lumped a BFG (OUCH, EXPENSIVE). ZERO problems, expecially with the exhaust upgrade. Buddy calls yesterday to tell me his '05 is full of problems. I feel bad....sorta. He's got warranty to handle it. BTW, I tow 13k in 2, zero probs.

Add another to the 5% club! 21k with only one engine problem at 2000k - it was the oil getting on the MAF sensor from my K&N. So, I guess that was my problem, not the engine's. Unfortunately, I had to toss the K&N. Oh well.

If GM takes yours back and gives you an ultra rare 5% Club truck, does that count as fixing the problem?

I'm 5% too. Nothing in about 25,000 miles except for a very minor pinion seal leak in the rear.

Just got ours back same problem.... New injectors we will see howlong it takes to brake again.....