Every day there seems to be more and more posts about the failed injector issue. It is definitely a problem, but the good news is that GM is standing behind its product and is fixing them under warranty. I had mine replaced at 106,000 miles a few weeks ago. I had 3 bad injectors and all 8 were replaced.


There seems to be a bit of panic among Duramax owners regarding this issue as evidenced by the posts here. The good news is that GM has stepped forward and is replacing them and is offering the extended warranty on injectors. The bad news is that the problem is so pervasive that there is a shortage of new injectors.


My truck is now running better than ever with the new injectors (after about 11,000 miles since they were replaced). Also, I haven't seen any evidence that the injector problem has caused any other catastrophic problems.


I only post this so that current owners that are seeing symptoms of injector failure don't panic and realize that the fix is relatively painless (other than having to wait for injectors) and the fix seems to work well. GM is doing the right thing in my opinion and the Duramax is still an awesome engine.


I love my truck!

Well said. I would be pissed though if my truck was in for injectors and it took a month to have them done. Especially if I use my truck to make a living.

As I have mentioned on here more then once.


Most (not all) of the injector problems are reported by new comers. Too me, this don't mean there is a big problem, just that the forum brings the problem to light.


I know, or have talked to more then 65 Duramax owners over the past 6 months, and not one has had an injector problem.(At least not as of the time I had talked with them)


I have 66,000 trouble free miles, mtomac has about 90,000 trouble free miles, hoot had about 70,000 no injector problem miles. And Mike Tomac is as hard on an engine as anyone could be, and for his engine to hold up so well tells me that most of these engines must be pretty darn stout.

Yes..but for those of us with 2003s..we are sol after 100k

I had the injectors go out at 25k earlier this summer. Over 4k later I dont think the truck has ever run better. I do beleive though that GM will end up extending some of us 03 owners to the 7 yr 200k warranty.

My injectors went out and even though I did not have to wait to get them replaced I am still in a panic. Sure the truck runs good but has 25% less oil pressure at 2000 rpm than before it went in the shop. I went to change my oil this morning and after about 1500 miles since the repair it was a quart low, it has NEVER used a drop of oil before. Sum's up.

Have a friend that owns a GMC dealership, Talked to his service rep. and they sell 2-4 trucks a month(not a REAL big dealer) and have not had to replace any injectors yet. Like I said he is a good friend and I believe him. Makes me feel pretty good on this issue. I know there are some problems out there, but not as numerious as everyone believes.

My 2004 LLY had 4 bad injectors when new. I am still waiting for the replacements. Both my 2001's had them changed. One of them twice. My 2003 has not had problems.

My 2004 LLY had 4 bad injectors when new. I am still waiting for the replacements. Both my 2001's had them changed. One of them twice. My 2003 has not had problems.

A Couple others had injectors go out right away on their LLY's with really low milage. To me this is not indicative of a major problem on the horizon, but rather some infant mortality on the injectors. It won't be until at least a couple years before the we can really see what the story is on LLY injectors. On your '01, now you know why they extended the warranty. Hopefully your '03 will continue to be trouble free.

Jim

I’m not sure if panic is the right word, but close. I just got my 03 back from the Stealer. It took 2 ½ weeks to get the injectors. The day before I got it back, he was telling me 4 more weeks. I lost $600. a day in missed boat deliveries for two weeks. I spoke to another guy in FLA who delivers boats who has two trucks down right now. He just filed for bankruptcy. He’s lost over $200,000. in deliveries. He knows a guy who runs 5 Duramax diesels and a couple of those are down. I’m glad all your recreational vehicles are running and you don’t see any need to panic. If the food you buy for junior depends on your vehicles being able to bring in revenue, maybe you would feel differently…

I agree with RSGS...


They gave me an Olds Alero for a loaner car, and while I do not make my money by driving my truck, the Alero was totally inadequate.


Every time I got detailed to another company, I looked like the Beverly Hillbillies moving into town!


On the other hand, after raising Cain @ the local Stealer, I am totally satisfied with the new injectors. Truck runs better than new!

SO how would i recognize that i am having an injector issue? What model years are covered/will a recall actually come out of this?








jessEdited by: cowgirl

SO how would i recognize that i am having an injector issue? What model years are covered/will a recall actually come out of this?


http://dieselplace.com/forum/forum_posts.asp?TID=5737&KW=injectors


Go there!

My 2002 GMC 2500 HD had a puddle of oil underneth and strong odor of diesel, 75% drop in oil pressure. SR says "probably" injector malfunction causing "dump" of diesel into crank case. Truck has 58K. Help?

Sounds like that is the problem...I have read about it several times here. Go to the above link to see the TSB.

My 2004 LLY had 4 bad injectors when new. I am still waiting for the replacements. Both my 2001's had them changed. One of them twice. My 2003 has not had problems.


I am in the market for a new 2500HD. I did not realize the LLY had injector problems too. That scares me. My 2003HD has been in the shop for more than 3 weeks now. I can't tow anything and I can't haul anything. It's worse than a bad divorce.

Does the 2004 LB7's have the new injectors???


Dan

My 2004 has 4 injectors out of tolerance on thebalance rate. I have put 50,000 miles on it like this. It gets poor fuel mileage and is slightly low on power. We watch for fuel in the oil closely, but so far just the bad fuel mileage is the only symptoms. I will still by another one at this point.

My 2002 GMC 2500 HD had a puddle of oil underneth and strong odor of diesel, 75% drop in oil pressure. SR says "probably" injector malfunction causing "dump" of diesel into crank case. Truck has 58K. Help?

__________________
GMC 2500HD Duramax


Update-SR confirms that injector body breakage caused fuel "dump" into crank case leading to overflow of oil & decreased oil pressure. Problem now is that new injectors are "back ordered" for one month at least. So, as they say in the cavalry...without a horse (or truck)...a man's...a foot. GMC refuses to provide a rental or loaner. Any suggestions?

I suggest you start hammering GM Customer Service (GMC is 800.462.8782 - I don't know if that's a universal number or not). Because you are out of warranty, I doubt you'll get a loaner (unless your on extended warranty, in which they must provide you with a loaner because you cannot drive the vehicle). When I took mine in, they told me 4 weeks. After 2 weeks, they told me 4 more. Then magically the next day the Injectors showed up. I started hammering Customer Support that here in Michigan, after 30 days, it's subject to the Lemon Law. Don't know if that provided any motivation or not. I do have it back and seems like it's running ok, but not better, like some have reported.

As I have mentioned on here more then once.


Most (not all) of the injector problems are reported by new comers. Too me, this don't mean there is a big problem, just that the forum brings the problem to light.


I know, or have talked to more then 65 Duramax owners over the past 6 months, and not one has had an injector problem.(At least not as of the time I had talked with them)


I have 66,000 trouble free miles, mtomac has about 90,000 trouble free miles, hoot had about 70,000 no injector problem miles. And Mike Tomac is as hard on an engine as anyone could be, and for his engine to hold up so well tells me that most of these engines must be pretty darn stout.

My 2002 GMC 2500 HD had a puddle of oil underneth and strong odor of diesel, 75% drop in oil pressure. SR says "probably" injector malfunction causing "dump" of diesel into crank case. Truck has 58K. Help?<!-- Signature -->

__________________
GMC 2500HD Duramax<!-- Signature -->


<font size="6">Update-</font><font size="4">SR confirms that injector body breakage caused fuel "dump" into crank case leading to overflow of oil & decreased oil pressure. Problem now is that new injectors are "back ordered" for one month at least. So, as they say in the cavalry...without a horse (or truck)...a man's...a foot. GMC refuses to provide a rental or loaner. Any suggestions? </font>&lt;!-- Message ''"" --&gt;
GM will give you a loaner if your truck is in the shop for warrenty repairs. Call this #1-866-932-4368 ext:38808 and talk to Cynthia Michels. She will tell you That GM will pay for a rental car while your truck is in the shop for warrenty repairs.

All very interesting, my truck will be ready tomorrow. I don't mind the wait. If you are having high return rates, have the stealer verify it and let them order injectors, bring it back to the stealer when the injectors are in stock. It will then take a day for the repair. If the injectors are dumping fuel in to crankcase (my issue) you would be able to tell by the diesel on the tailgate and the large puddles forming every time you stop. (as in my case) Don't drive it much like this IMHO, then I would let the stealer have it until the injectors are in and the repair is complete. "BUMMER" But life goes on. If your business is based on one piece of equipment with no form of backup, shame on you. In every business I have worked in, everything breaks. Often the more a piece of equipment is needed, the more it will break. (I think this is one of Murphy's laws) After all these machines are made by human beings. http://dieselplace.com/forum/smileys/Confused.gif And most of them are not very bright. http://dieselplace.com/forum/smileys/Wacko.gif I am in that crowd....http://dieselplace.com/forum/smileys/HiHi.gif


These are the best trucks out there IMHO. My signature will change tomorrow!!! I do love the spell check.........

Does the 2004 LB7's have the new injectors???


Dan It was rumored that ones built October or later are the new style, check your drivers door for the build date.

Bosch has now updated injectors for these trucks - after auite a few months of having to do very BS flow charts and tests that took literally hours, GM has put a special policy to just replace all 8 injectors. I think if your truck is made after oct (as srode was saying) or if you have a gen 2 lly 6.6 you should be fine. Only reason I hate doing these repairs is the fact that sometimes it takes us over a week to get these injectors due to the fact that it is such a big problem!

srode


My build date was mid october of 03' for the 2004 model year. Maybe Dmaxallitech can chime in on the exact dates of updated injector applications.


Dan

I’m not sure if panic is the right word, but close. I just got my 03 back from the Stealer. It took 2 ½ weeks to get the injectors. The day before I got it back, he was telling me 4 more weeks. I lost $600. a day in missed boat deliveries for two weeks. I spoke to another guy in FLA who delivers boats who has two trucks down right now. He just filed for bankruptcy. He’s lost over $200,000. in deliveries. He knows a guy who runs 5 Duramax diesels and a couple of those are down. I’m glad all your recreational vehicles are running and you don’t see any need to panic. If the food you buy for junior depends on your vehicles being able to bring in revenue, maybe you would feel differently…





Then I would say his backruptcy was going to happen anyway.


If my buisness was losing $600. a day or $200,000. in deliveries, I would be on the phone the day they told me my truck would be down and doing a short term lease with Ryder or any of the other HD truck dealers.


Even if I just broke even, my customers would have been taken care of and will still be there the next time. Not only did he lose money, he lost his customer base.


Our local GMC exclusive dearlership here in town handles many of the Duramax's. He has no one waiting for injectors. He stated that they may get 2 a month that need replacement. We probably have at least 12 Dmax's here where I work. Mine and one other are the only ones who have had them replaced.

Like I said, I'm glad your recreational vehicles are all running. It's easy for you to sit back and say what you would have done, but you're not in my shoes. If I'm running one truck, do you think I have the resources to keep a backup $48k truck around? I think you should keep your thoughts about how people run their business to yourself and if you have anything valuable to contribute, then chime in.

Like I said, I'm glad your recreational vehicles are all running. It's easy for you to sit back and say what you would have done, but you're not in my shoes. If I'm running one truck, do you think I have the resources to keep a backup $48k truck around? I think you should keep your thoughts about how people run their business to yourself and if you have anything valuable to contribute, then chime in.

its been said before, these are made by humans and humans don't make things perfect. If your business depends on one piece of equipment running perfectly all the time and you don't have a plan B in case it does not, then your bound to fail. If it was not the injectors, turbo, etc.,
then it could be some clown that you end up rear ending and your truck is in the shop for three weeks getting repaired. Are you going to blame that on GM? What are you going to do about your business during that time? Like a previous poster said, you get on the phone and do a short term rent from Ryder or another HD truck rental agency. Its called disaster planning. You think about the things that can cause major disasters to your business. You then work out a plan to minimize the damage. Hopefully you can work out a plan that does not involve replicating every piece of equipment and aspect of your bussiness.

Jim

GM advertises their truck's as "Professional Grade". Plain and simple, they need to stand behind that assertion with "Professional Grade" service. Right now it looks like a purely amateur operation when dealing with injectors.Edited by: OC_DMAX

Like I said, I'm glad your recreational vehicles are all running. It's easy for you to sit back and say what you would have done, but you're not in my shoes. If I'm running one truck, do you think I have the resources to keep a backup $48k truck around? I think you should keep your thoughts about how people run their business to yourself and if you have anything valuable to contribute, then chime in.





I feel your pain. $450/week + milage for a 24' Ryder is not chicken feed. But perhaps a used 1 ton dually as a back up may not be such a bad idea.

Like I said, I'm glad your recreational vehicles are all running. It's easy for you to sit back and say what you would have done, but you're not in my shoes. If I'm running one truck, do you think I have the resources to keep a backup $48k truck around? I think you should keep your thoughts about how people run their business to yourself and if you have anything valuable to contribute, then chime in.


See the deal is one doesn't NEED a $48K truck. One could use two $24K trucks! That's if one needed new trucks. Else, a hole pile of used F%rds! I have one for sale $8K it will tow 14,000 lbs. and get 4 miles per gallon.

Like I've said SEVERAL TIMES NOW, I'm glad all your recreational vehicles are running. It's easy for you ALL (arm chair quarterbacks) to sit back and say what you would have done, but you're not in my shoes. I think you ALL should keep your thoughts about how people run their business to yourselves and IF you have anything valuable to contribute, then chime in. Nuff said.Edited by: RSGS

Thanks for the post. Three weeks after I purchased my 01 DMAX my injectors went out and for the last month, my truck has been sitting at the dealership waiting for injectors. I have been very nervous since I took it in, thinking I made the wrong purchasing decision by getting rid of my 03 2500HD gas and getting the Duramax. I too use my truck for work and purchased the DMAX to get better mileage and to put 300K plus miles on a vehicle before I switched engines. I am glad to hear that there is a light at the end of the tunnel. Thanks again for the post.

My "Recreation vehicle" is NOT running. It has been down for 5 weeks. Now the dealer may have granaded the motor. I don't think I said anything about how you should run YOUR business. I thought what I was doing was showing a different approach to running a towing business. I apologize if you took offense to my comments. I have worked in businesses that depend on equipment for 30 years. All equipment breaks some sooner some later. Equipment is much more durable nowadays and the new technology has allot to do with that. Again, I apologize if you took offense.


Rodney

Does anyone know the date at which the new style injectors were installed or are all LB7 injectors subject to have a problem? I think someone said October 03, but is this correct?


Thanks


Jason

Like I said, I'm glad your recreational vehicles are all running. It's easy for you to sit back and say what you would have done, but you're not in my shoes. If I'm running one truck, do you think I have the resources to keep a backup $48k truck around? I think you should keep your thoughts about how people run their business to yourself and if you have anything valuable to contribute, then chime in.

its been said before, these are made by humans and humans don't make things perfect. If your business depends on one piece of equipment running perfectly all the time and you don't have a plan B in case it does not, then your bound to fail. If it was not the injectors, turbo, etc.,
then it could be some clown that you end up rear ending and your truck is in the shop for three weeks getting repaired. Are you going to blame that on GM? What are you going to do about your business during that time? Like a previous poster said, you get on the phone and do a short term rent from Ryder or another HD truck rental agency. Its called disaster planning. You think about the things that can cause major disasters to your business. You then work out a plan to minimize the damage. Hopefully you can work out a plan that does not involve replicating every piece of equipment and aspect of your bussiness.

Jim





I agree completely. There are people and/or companies out there who have vehicles costing as much as a million dollars each, selling services for $500 per hour that must have a "plan B". Not nearly as easy as finding another pickup truck to tow with.


Its called business planning.http://www.dieselplace.com/forum/smileys/Geek.gif

RSGS (Red Sky Guide Service), I understand your frustration with your truck. I have owned Dodge, Ford, Chevy, and now GMC. I have had problems with all of them. This GMC cost more than my first house. I am having problems with this truck just like a lot of other people are. Most of us so called recreational drivers depend on our vehicles to get us to and from work. Do you think that our employers would let us stay home (and get paid) just because our truck was broken? I would think that a person that is a recreational guide would have less contempt for recreational drivers. A lot of us that drive these pick-ups do hunt and fish, and we use Guide services. Your comments about keeping our thoughts to ourselves are uncalled for! Those folks just stated good business practices. You don’t have just one lure or one hook in your tackle box do you? Do you only fish one spot in the River? No, you have plan B if plan A doesn’t work! I wish you the best! I hope that you are very successful in your business! We are the little guy struggling to keep our families fed, our trucks running, and maybe have enough money left for fishing. You owe them an apology! Now the question is; Do You have enough character to do it?

I replaced my injectors out of pocket. '01 with 101.5K when they failed the second time. GM said they would reimburse for the repair. I sent the paper work in over 60 days ago. Several calls: No check from the General, but I've been told it's in the mail. I know these things take time, but??


Anyway, the good news: It runs like a champ, runs quiet, and pulls with ease. I'm very happy with my DMax.


BTW, RSGS, I use my trucks to make my living, and I do have a back up. If you don't want to hear my thoughts..you don't have to read my post. Kevin

Does the 2004 LB7's have the new injectors???


Dan It was rumored that ones built October or later are the new style, check your drivers door for the build date.

I have not been on for a while but I thought I would chime in here. My build date was September so i had the old injectors. I had my injectors go out at 2200 mile in Feb, 2004, waited 2 1/2 weeks for complete repair. With this forum i was able to put pressure on the dealer after they tried only replacing one injector. They replaced them all with the new injectors and it has over 17,000 miles on it now and still runs great. As it has been said, humans make mistakes and the old injectors were made with poor quality and design. Mine now are the new design and GM came out then with changing all injectors instead of just bad ones.
I just changed my fuel filter and should have changed it sooner. 100% Dirty and rusty. I am thinking seriously about adding a pre-OEM filter but if i don't i will replace OEM much sooner. I buy 99% of my fuel at truck stops but it is still bad. I am happy with my truck and will buy again. No matter what you use your truck for you need to plan for down time. I hope everyone had a great holiday.
Bill
2004 DMAX, Allison.

When my truck is sitting at an idle it just builds up and when I hit the gas it blows out a ton of white smoke. The only thing I have on it is the Edge Juice. Help?Edited by: chadlong06

I have more that one truck for my business. I was with out a truck due to an accident for 3 months.


I don't know where you get you truck but $48,000 sound like you get ripped off. I paid $42,000 for my truck in January that with a $5000 dump body and a $3000 snow plow. May be you buy to your trucks at a truck dealer next time. I can get a loaner truck.


But you sound like a Ford guy trolling here just to piss people off.

RSGS (Red Sky Guide Service).....Your comments about keeping our thoughts to ourselves are uncalled for!


......You owe them an apology! Now the question is; Do You have enough character to do it?





Guess not!

RSGS, I don't tow for a living, but my truck is not a "recreational vehicle". I do electrical contract work and work on the family farm as well as holding an hourly job in industrial maintenance. I have a few backups if this truck ever fails me. None of them are/were $48k trucks. The sticker on this one was around 44k, but I didn't pay anywhere near that for it. Invest in an old 6.5, 7.3PS, or cummins truck to get you by until the max is back on the road. Our old big block 3500 and 7.3PS trucks are all beat up, rusty, and don't run near as well as the max, but they can and do still work. I agree with 10851 on this:


"You owe them an apology! Now the question is; Do You have enough character to do it?"

What is the syptoms of the bad injector problem? Here is what I posted on another website:


I just bought a used 2003 Chevrolet 3500 4X4 with a Duramax, it has 46333 miles on it including the 1500 I put on. Today it would not start . It turns over fine, there is fuel to the filter, drained a very small amount of water out of the fuel filter. But it still will not start . Any ideas???
Should this still be covered under warrenty?

Shawn
http://www.dieselplace.com/forum/smileys/Disapprove.gif

What is the syptoms of the bad injector problem? ... Today it would not start . It turns over fine, there is fuel to the filter, drained a very small amount of water out of the fuel filter. But it still will not start . Any ideas???Should this still be covered under warrenty?

Shawn,

When you drained the filter did you bleed off the air by loosening the vent and using the bleeder pump (on top of the filter housing)? Sometimes pushing the pump until it's hard will help a no-start if it's caused by loss of prime - especially after changing/draining the filter. Also have you changed the fuel filter since you bought the truck? If not, since you bought it used I would do that first. Also cut open the old filter and see if it was plugged and/or corroded. Regarding bad injector symptoms … there are several ... best to do a forum search for more info... The worst problem is that in some cases a failed injector will fill the crankcase with fuel and it will poor out the crankcase vent. The truck will smoke excessively and run lousy. If you know someone with a Predator or scan tool you can have them check the injector balance rate… but first you have to get it running. If you do have an injector problem it would be covered under the 100,000-mile warranty (or 200,000mile injector warranty if it's extended to the 03's). The only thing to be careful about is you don't want to let the dealer blame the problem on dirty fuel or a plugged fuel filter (they might try to deny coverage). Good luck. Let us know what you find...

http://www.dieselplace.com/forum/smileys/Geek.gif Edited by: jbplock

My 2002 GMC 2500 HD had a puddle of oil underneth and strong odor of diesel, plus a 75% drop in oil pressure. It took a month to get the parts from GM, but the truck is now running. I recommend that you check your oil frequently to detect an "over-full condition", that is an incerase in the oil level on dip-stick with an odor of diesel fuel in the oil. Also check for any oil leaks and have them checked promptly.http://www.dieselplace.com/forum/smileys/HiHi.gif