How is the injector removal and instal going? Mine is doing the same thing and I have it all torn apart but one injector #8 is very hard to get to, its kicking my butt, I hope to have it out tonight. I tore everything I could out of the way, only drained half the fluid after pulling the hoses off the surge tank.

 

#8 is on the drivers side. You shouldn't have to pull anything extra off or drain any fluids. #7 will come out real easy if you unbolt the evap and bend it out toward the fender.

 

wish I could help but stealer it doing my #8 (failed) as soon as they can get them (been waiting 3 weeks) and no idea when they will be in stock, over 900 trucks across the country waiting also

 

wish I could help but stealer it doing my #8 (failed) as soon as they can get them (been waiting 3 weeks) and no idea when they will be in stock, over 900 trucks across the country waiting also

there in stock now. ive gotten 3 sets out this week alone and 2 sets went to a dealership

 

My #8 is gettin close to out of spec, what's with the #8? 8 went on my lb7 too...

 

I agree number 8 is on the drivers side, i apologize if I made it seam otherwise. Maybe I should have stated I have more than one bad injector so I am replacing them all.

 

you could have ur old stick out and new one in line under 45 min by yourself with just 4 different tools and all basic tools.

theyre very easy to do and it could save u lots of money to just do it yourself

 

how do u tell if ur injectors are going bad i cant read balance rates with the juice and it hazes all the time but people say the lbz does that. ??

 

lbz's do haze a little. mine does and my balance rates are great.

you can take it to the dealer and have them hook up a tech 2 or if you have a friend with the v2 you could check them that way also

but that edge juice is only hurting you

 

even if u leave it on stock and use it for gauges and what do u mean by hurting me ? please explain

 

if your just on stock tuning then your fine. but edge juice tuning is terrible

 

How do you know if you have a bad injector? Did you do a return rate test? If so, was it done cranking or running? Command high rail pressure with the DVT, or just idling?

 

hit throttle and truck fell on face, looked into mirror and could not see any traffic because the white smoke filled up 4 lanes, made it about 1/4 miles and it died, could not start and tru ck light p0087 (low fuel rail press) as a matter of fact it had no rail pressure because all the fuel was going out of injector #8 (stuck wide open)

 

I ran a bunch of injector cleaner through my truck and pute air dog on then the ballance rates were in spec blue smoke cleared up now its smoking again and balance rates are off again but only happens when truck is cold after warmed up don't blow any smoke and balance rates are in spec don't know what's going on no fuel in oil and runs like a top:help

 

My truck acted like that for a long time and by running a qt of 20/50W motor oil, and diesel clean additive in each tank it kept under control for awhile.

As far as changing injectors I've been thru 3 sets in my truck. Injectors were on back order so I kept mixing up used sets until I finally got a good set. You don't need to drain coolant, or any fluids to remove any of the injectors. To remove #8 injector you need to remove the I/C boot from turbo, remove the bracket that holds the main harness plugs, remove the 10mm bolt down below the valve cover holding the fuel injector wiring loom, remove the bracket supporting the fuel line, remove the high psi fuel line for #6 injector to give access to #8, then remove the clip on top the injector holding in the return line(be careful) then the injector will come out. Start off by twisting it side to side while pulling up on the hold down. After you pull it be sure to take great care cleaning out the hole where it came out, any crap down there will keep the new injector from seating and cause problems. Use a piece of 1/2'' hose shoved up a shop vac... Also be sure to use some kind of lube on the o ring. It can be tricky getting them back in and seated correctly. I shove it down while twisting back and forth, then tighten the hold down bolt a little then use a drift and lightly tap on the steel part of the injector to seat it.

 

Well you won't ever have fuel in your oil unless something much more serious than an injector was to happen.

 

Brought my truck in to the dealership today, because it was making a loud knocking sound making the truck shake & also blowing lots of black smoke. They said it was the #7 injector that was bad. They want right over a $1k to replace it (no more warranty). And the injectors are on back order. I found an injector online and it's on its way. My question is how hard is it to change #7 injector? Any insight or pix would be much appreciated.

Thanks

 

very easy.

remove the fuel line from rail to injector.

remove with 12mm the injector hold down.

remove the butterfly clip holding the return on it and remove that. and electrical clip

pull injector out

then go in reverse :drink

 

Than I Lucked out. My dealer is putting mine is right now.

AutoGuide

 

Thanks sickdiesel!

GMguy, I just broke 100k. I asked about the 200k mile warranty and they said it was for the earlier models, not the 2006. Yes you are lucky.

Well looks I'll be tearing into it as soon as the injector gets here. I'll let you guys know how it goes.

 

no problem bud, shouldnt take more than a half hour.. max

 

Hey everyone, would anyone be able to tell me what the line looks/feels like its netted is that runs over all the injectors is? reason i ask is because somewhere along the line of my lbz swap into my 03 i cracked the little plastic above the injector the very tip which holds that line now its leaking diesel. Did i ruin a perfectly good injector??? or is there a way to hold it off a while longer???

 

Return line. Merchant automotive has em


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^^^ thanks zeke yeah i went got under it today was way easier to tell what was going on with some sunlight..

 

My CTS is saying injector #8 is running anywhere from 3.5 to 5, warmed up. I need to figure out how to use my Spade to double check the CTS. Does anyone know how long the warranty last for the injectors on a 2007 LBZ? I have under 40,000 miles on my truck.

 

Falls under the 100k engine warrenty, IF they dont try and void your warrenty.

 

Call a dealer and see if you still have warranty, I know when I had a bad one I was stuck with replacing it. And they are not easy to find right now

 

Why would they void the warranty.

 

You've tuned it

 

Well if I go back to stock tune, pull the DSP5, pull the pins out the ECM, they won't see that I tuned it will they?

 

they can still "see" it

 

What's the difference between changing injector vs. changing nozzles?

 

Nozzles are the tips on the end than can be modified. The injector is the unit.

A nozzle is part of the injector at the end of the body.

 

What do most people change? Nozzles or injector?

 

Injectors if they are bad. Nozzles if you're looking for performance mods.

 

If your balance rates are bad then you change the whole injector. If they are good and your wanting to say 40% overs you just do the tips

Autoguide

 

I need to change a leaking upper valve cover gasket and I'm wondering if I can reuse the high pressure injector feed pipes?

 

Fuel lines? Yes