Injector Replacement Poll

[CLAYTON]

Change my original answer

Had 4 bad injectors at 82k. The dealership covered them and ended up replacing all 6. Truck seems to be running great

 

[rbattelle]

Man, you've got a lenient dealer to replace injectors despite all those mods.

Ryan

 

[Cattletrkr]

I know of one dealer that warrantied all six injector despite knowing of at least two boxes that were stacked on the truck. I think of that every time I write a check for service work.

 

[CLAYTON]

Man, you've got a lenient dealer to replace injectors despite all those mods.



Ryan

I know it. . I told him I had the box on the truck. He said bring it in That works for me

 

[BBRam]

No Injector issues here, other than they aren't large enough.

 

[msmith]

msmith



Have had 2 replaced and truck is in shop with mechanic wanting to replace the rest. 76K.

04. 5 3500 drw, smarty, pac brake,

 

[RWarhol]

07 5. 9 21,500 miles lost one already and I don't think the rest are far behind. 04 42,000 miles never had a problem.

 

[DPalmquist]

06 qc 4x4 auto 373 rear 57,000 still purring

 

[CookD]

no

no problems for me in my 06 at 30,000 lots of towing.

 

[OT-OF-HERE!!]

Ok,.. just my $ .02,.. but I think the real issue has been missed

I forget exactly now as it's been at least three years but I had 7 injectors (1 being replaced twice) all within the 1st either 5k or 7k miles.



What I meant by the real issue being missed is that Bosch is not building faulty injectors and yes a lot of us have had major problems and inconvenience in this regard,... but the real issue is filtration. The OEM filtration of I believe is 10mic is not at all sufficient for all the c. . p we are all getting in our fuel. DCX is not to blame here either in their OEM initial engineering which I suppose indicated 10 mic to be adequate. Where DCX is delinquent is that with all these replacements that they seem to not realize what the root cause is or they would have put 2 mic on these trucks initially and there wouldn't be a problem.



One further thought on this issue,... . if you have messed with feed tube filters and have removed them and EDM'd them for more flow then you you should seriously consider double filtration of (2) 2 mic filters,... it will also help your cp3 out by insuring it is getting a much better grade of fuel with practically NO contamination. If you have messed with the feed tubes then there is a high probability that you have replaced your OEM sticks with some of the high priced available aftermarket sticks and surely all this expense warrants the use of the best filtration options.



For the record I have now gone almost 50k since all my initial stick failures and have had zero problems.

 

[Gus's 03]

145k+ and still going strong.

ill be putting 90 hp nozels on soon tho, ill rebuild the bodys while im in there just to be on the safe side.

 

[Slingblade]

Awhile back I installed a Glacier Desel 2 Mic fuel filter kit just for extra insurance against injector issues. Since I first installed my first pressure box I have been a bit paranoid about injector failure on my '04. Repeatedly the truck has had strange symptoms like some loss of power and strange ticking and knocking sounds while driving. I don't haul any heavy loads much at all and I think that is the problem. When I do tow the truck gets pushed quite a bit and after I disconect it runs perfect, and has quit a bit more power. I think it's just getting loaded up with carbon. Towing, the engine gets worked like it was designed to be and the carbon gets knocked or burned off the injectors and valves. I am not saying that the injector problems folks are having is being caused by not working the truck. Just my observation, whatever it's worth. I still want to get a used set and have them rebuilt with F1 tips just for added insurance against cracking and engine damage.

 

[rbattelle]

Since I first installed my first pressure box I have been a bit paranoid about injector failure on my '04.

Being paranoid about injector damage and running a pressure box seem to be at odds with each other.

But a lot of people say this.

If you're worried about damage to your injectors, why run a pressure box at all? I mean, isn't that a bit like inviting the devil over for coffee and hoping not to be tempted?

Injectors fail in stock trucks. In my opinion, injectors fail in trucks with pressure boxes more often.

Ryan

 

[CStockton]

29K and no problems.

 

[TCDiesel]

The days of simple fuel injection is gone, the CR injection system is so complex its even hard for the experts to understand. It is dependent on several different condition couple with inputs form at least 5 sensors. the design of the 5. 9 injector is not New, its the environment that they are asked to survive in is. One area I am glad to see changed in the 6. 7 Injector is the cross over tube location, the 5. 9 location make the injectors subject to incredible amounts of vibrations (Hammering effect) any type of contamination will (make) hasten destruction of the solenoid, big spike's will also quicken failure. I have said this before NEVER (RAV) Rapid RPMs a 5. 9 CR.

If the poll was change to MT/Auto injector failure I would be surprised to see the autos higher than the MT.

 

[Slingblade]

Being paranoid about injector damage and running a pressure box seem to be at odds with each other.



But a lot of people say this.



If you're worried about damage to your injectors, why run a pressure box at all? I mean, isn't that a bit like inviting the devil over for coffee and hoping not to be tempted?



Injectors fail in stock trucks. Injectors fail in trucks with pressure boxes more often.



Ryan

I want the extra power and don't want to break parts. I know it's rediculous to expect perfection. I sold my EZ and got a Quad ZXT box as it does not increase pressure as much. I hope I have found some middle ground with the current setup plus the extra filtration. Some folks have run the EZ or Quad for many thousands of miles with no problems. I hope I am one of those. If I do have an injector go bad I hope I catch it in time before I do serious damage to the engine. By the way I have just over 35,000 miles on it now. No failures yet.

 

[Cattletrkr]

Injectors fail in stock trucks. Injectors fail in trucks with pressure boxes more often.

Does anyone have any numbers to back that up? Other than DC that is. It certainly makes sense, but I'm wondering if a lot of that talk is from denied warranties that maybe were a result of contamination rather than pressure.

 

[rbattelle]

Does anyone have any numbers to back that up? Other than DC that is. It certainly makes sense, but I'm wondering if a lot of that talk is from denied warranties that maybe were a result of contamination rather than pressure.

I don't. I've edited my post to reflect the fact that this is my opinion - not fact.



Ryan

 

[Yo Hoot]

61,000 and still going strong

 

[OT-OF-HERE!!]

Actually these are two different issues,...

Does anyone have any numbers to back that up? Other than DC that is. It certainly makes sense, but I'm wondering if a lot of that talk is from denied warranties that maybe were a result of contamination rather than pressure.

While I believe/know from everything I've read over the past few years that rbattelle's info is correct then these are actually two different issues. How so? Well the injector failures on OEM injectors are primarily caused by insufficient filtration while the failures that are pressure related are caused primarily by pressure spikes. If you're running a pressure box then you have to have the common sense, given the pressure spike information supplied above, to NOT run your pressure turned up all the time. An occasional turn up/dial up of power is not as apt to damage your sticks. It just makes sense that anything that is run at the max is more likely to achieve failure.



I'd like to provide two primary sources for the info I just supplied,..... Don M and Ind Injec/Bosch. Both of these sources have come forward and provided this info and not many of us would have access to more sticks to review what works than they.