Hello my truck has 148,000 miles on it and has 4 injectors that are leaking to much fuel so needless to say I need replace my injectors. My question is does anyone know of replacement injectors that last? Im open to remans but I have heard some horror stories also. I know pensecola has some resonably priced injectors but does anyone have any good or badd experiences with them? Any help would be appreciated. Thanks

Unless your in service date is in 02 you should be within the TSB 7yr/200k mile period to have them replaced. From what I've heard don't go with Pesacola. The GM/Bosch remans are just fine. They aren't the end all fix, nothing is. You got 148k out of the originals so I would expect at least that out of the replacements.

It qualifies according to the time line and milage but took it to the stealer and thay wont do it because ok some bull crap. Probably because they are to lazy to screw with the warranty.

Ya they are getting to where they have to meet all the qualifications since GM is cracking down on them. It's probably not the dealer's fault, but it wouldn't hurt to try another dealership.

All of the injectors are made by Bosch. You won't find one better than the other.

What kind of money are we talking for bosch injectors?

Hello my truck has 148,000 miles on it and has 4 injectors that are leaking to much fuel so needless to say I need replace my injectors. My question is does anyone know of replacement injectors that last? Im open to remans but I have heard some horror stories also. I know pensecola has some resonably priced injectors but does anyone have any good or badd experiences with them? Any help would be appreciated. Thanks

While reading your thread, I too am concerned that my injectors may be giving up the ghost. My truck gets great fuel economy, starts fine, and acts completely normal. However, randomly I get a little blue smoke billowing out the exhaust. It's been this way for almost a year. Particularly after coming to a stop while towing. It only does it at idle, and almost only while hauling something. I had the injector balance rates tested just a couple months ago and they were all within spec. I witnessed the GM mechanic with the tech 2 doing this, so I am sure it is correct. Does this seem like the beginning of an injector issue? If so, has anyone successfully defeated one in the early stages of failure with a cleaning or lubrication regimen? And from what I hear, the Bosch injectors are expensive.

While reading your thread, I too am concerned that my injectors may be giving up the ghost. My truck gets great fuel economy, starts fine, and acts completely normal. However, randomly I get a little blue smoke billowing out the exhaust. It's been this way for almost a year. Particularly after coming to a stop while towing. It only does it at idle, and almost only while hauling something. I had the injector balance rates tested just a couple months ago and they were all within spec. I witnessed the GM mechanic with the tech 2 doing this, so I am sure it is correct. Does this seem like the beginning of an injector issue? If so, has anyone successfully defeated one in the early stages of failure with a cleaning or lubrication regimen? And from what I hear, the Bosch injectors are expensive.

Run a good additive with every fill up and push the skinny pedal to the floor more often.:D Other than that, if they're gonna go, they're gonna go. I believe you could get the injectors for around $150 a peice with core return.

Run a good additive with every fill up and push the skinny pedal to the floor more often.:D Other than that, if they're gonna go, they're gonna go. I believe you could get the injectors for around $150 a peice with core return.
May I ask which additive you are running? I have thought of trying lucas fuel system treatment for diesels. It's the amber colored liquid. I've even heard of people running 2 stroke ashless oil in with their fuel for increased lubricity.

May I ask which additive you are running? I have thought of trying lucas fuel system treatment for diesels. It's the amber colored liquid. I've even heard of people running 2 stroke ashless oil in with their fuel for increased lubricity.

I personally run Amsoil Concentrate and I'll throw in some cold flow improver when the temps warrant. I used stanadyne for almost a year and it's good stuff also. I will put some TCW3 2 stroke in from time to time. I use it less often with the Amsoil than I did wit the stanadyne. For you up in MN, if you want to run the Amsoil you can get the concentrate and cold flow improver all in one mix, I don't because it's not consistently cold here.

I use optilube. It's good stuff.

My injectors are leaking also. What is a good way to test which ones are bad?

Run a good additive with every fill up and push the skinny pedal to the floor more often.:D Other than that, if they're gonna go, they're gonna go. I believe you could get the injectors for around $150 a peice with core return.

Haha the truth is that I am pretty light on the accelerator pedal, although I do like to goose it once in a while when getting onto onramps. And I'm not always easy on it when towing, but do you know where I can get those injectors for $150 w/core return? I have a fear I may be doing this soon. Especially with the EFI Live in the mail. ;)

We have a 2002 and 2003 duramaxs. They both have 240,000 miles on them. The 2002 had already had injectors replaced at 125,000 miles.

I ordered 16 injectors from DieselCare.com .... well they said they would ship them next day so I had to pay $60 for shipping. Then the next day I'm waiting for the parts to show up or a tracking number from him, so I call the salesman ........ Oh, he said, I better check into that. He calls me back and says they couldn't find any?!?!?!

So now the 2003 is down and no injectors in sight. A couple of days later he sends 8 injectors. We install them, and several hours later after putting everything back together on the truck we start it up. Well it smokes worse than it did before the installation of "rebuilt injectors". We put it on the computer and sure enough #1 and #6 are already at 4 on the balance rates. We shut #6 off with the computer and the smoke is cut in half. So we shut number #1 off and again the smoke quits. So I call them up and in my most controlled self I explain that the shipping was late, the truck is down, I'm 9 hours from home and their crappy injectors are already out of spec and the truck has only being together for 15 minutes...........

"Oh no problem, we will send you 2 more." ............ Thats great, thanks, I wanted to tear down this truck one more time just for fun %$>#%#!!!!

Needless to say I cancelled the other order of 8 injectors.

We didn't even get lucky enough to have both of the faulty injectors on one side. So we took a good one off the left side and put it on the right side and then put both "potentially crappy new ones" on the first side. That way if the two new ones were bad we would only have to tear one side down again.

Isn't there anything thats makes these injector "remanners" have to pay the labor of reinstalling their crappy injectors. I told them this isn't like swapping out junk alternators in the parking lot of Autozone, its an 8 hour process at best.

There isn't any reason why they can't machine/pressure check them before they get shipped.

Absolute, BS,

Sam

Dang dude you got a raw deal! Dare I ask how much they extorted you for those 8 injectors? Did you get a partial refund of any kind?

The injectors from DieselCare.com were $149.99 plus the core when returned.

They did not offer to give me anything other than two more of their injectors to deal with.

I asked them several times for a break or to pay for the additional $770 dollars it cost me to have the mechanic tear the motor all the way back down just to put two more of their injectors in it, because they can't quality check them for crap.

I mean literally all the other injectors had balance rates of 0 or .1 yet #1 and #6 were .4 on a SnapOn Computer. This is a bunch of BS, why can't they just hook the injectors up to some pump and computer and check them before they ship, surely such a machine wouldn't need to cost more than a few several thousand dollars, yet would save owners and mechanics a ton of wasted time.

Sam

The injectors from DieselCare.com were $149.99 plus the core when returned.

They did not offer to give me anything other than two more of their injectors to deal with.

I asked them several times for a break or to pay for the additional $770 dollars it cost me to have the mechanic tear the motor all the way back down just to put two more of their injectors in it, because they can't quality check them for crap.

I mean literally all the other injectors had balance rates of 0 or .1 yet #1 and #6 were .4 on a SnapOn Computer. This is a bunch of BS, why can't they just hook the injectors up to some pump and computer and check them before they ship, surely such a machine wouldn't need to cost more than a few several thousand dollars, yet would save owners and mechanics a ton of wasted time.

Sam

Yeah I hear ya. So when you took out the old ones, how many were out of spec? All of mine were within .2 when checked a few months ago.

The 2003 had two that were .4 .

The 2002 has one that is .3-.4 and another that is .2 .

Sam

Where do you guys recommend buying injectors from? And where can you buy bosch injectors from?

Where do you guys recommend buying injectors from? And where can you buy bosch injectors from?
gmpartsdirect 182 bucks each direct from the factory

Let me ask what might be a stupid question. I have been reading a lot of posts about balance rates and have not seen this mentioned. What should the balance rates be for a newly installed set of reman injectors? Should they be 0 in each cylinder? Thanks.

gmpartsdirect 182 bucks each direct from the factory

Does GM charge a core for those, or is that a flat fee for new ones?

Does GM charge a core for those, or is that a flat fee for new ones?
Check out the website and see what they offer.

Check out the website and see what they offer.

I did. Cores are not mentioned in the disclosure. I believe they may not require cores. I'd rather spend 240 extra bucks on GM factory direct parts with the warranty behind them than playing roulette with another company. That's just my take.

The ones on the site were $182. What's the $240 you are referencing

Could someone post a link on where to get these injectors for $182 because I cant seem to find them on gmpartsdirect for the life of me.

The ones on the site were $182. What's the $240 you are referencing

Approximately the cost difference for buying 8 from them as opposed to the rebuild facilities that charge approximately $140-$160 / injector.

The other interesting question is if the injector nozzle changes with various tunes would be worthwhile. There are some at Thoroughbred Diesel, see link: http://www.thoroughbreddiesel.com/ats/gm-injectors.htm
of which in particular the LB7 stage 1 kit looks tempting. I have emailed them to send me their statistical analysis that proves better fuel economy with those injector nozzles. I sent it a week ago and have yet to hear anything. Does anyone here have any personal experiences with aftermarket nozzles?

Aftermarket nozzles usually are tied into performance. They are going to have a percentage over stock rating but unless you do other upgrades that would warrant such a nozzle it's probably a waste of money. As far as the website I can't post the link from my blackberry but If you look under the diesel fuel system section you should find them. I know it took me a while also.

Have you personally bought these injectors from gmpartsdirect before kjsman6?

No, but they seem to be the preferred choice among those that have had to do replacements on their dime. I'm hoping I don't have to either, but I'm kind of anal and have already began preparing for when the time comes. I'm sure the reason for preferring these is that they are tied directly to GM.

Aftermarket nozzles usually are tied into performance. They are going to have a percentage over stock rating but unless you do other upgrades that would warrant such a nozzle it's probably a waste of money. As far as the website I can't post the link from my blackberry but If you look under the diesel fuel system section you should find them. I know it took me a while also.

I would agree they should have x % over stock rating. The selling point of those specific injector nozzles is that they are a "mild upgrade" and that they "improve fuel economy". As I said, I asked for verifiable proof for this a week ago and nobody's said anything.

What kind of money are we talking for bosch injectors?

360.00 for one

I would give Chad a call at Alligator Performance. I just bought a set of 15% extrude honed 50hp injectors from him. They are brand new injectors and u get what pay for with these injectors. This company. Industrial Injection , that makes the injectors he sells, does in fact measure and test and flow every nozzle and inj nozzle combo to match the injectors. I have had awesome results with them. 50hp is not alot, just a little boost and my truck runs like a brand new one. Idles smoother and quiter than ever and tons of power!!

I would give Chad a call at Alligator Performance. I just bought a set of 15% extrude honed 50hp injectors from him. They are brand new injectors and u get what pay for with these injectors. This company. Industrial Injection , that makes the injectors he sells, does in fact measure and test and flow every nozzle and inj nozzle combo to match the injectors. I have had awesome results with them. 50hp is not alot, just a little boost and my truck runs like a brand new one. Idles smoother and quiter than ever and tons of power!!

Has there been any general change in your fuel economy with this change in injector and nozzle combo?

It has went up 2mpg