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Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

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2500HeavyDuty, what needs to come off to do the drivers side. Is there a similar right up for it. I see theres two fuel lines that need to be moved and some sort of box. What do I need to know before I attempt to ... JOIN NOW TO REMOVE TRACER

Replacing Duramax LB7 Injectors 01-04 tips and hints

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Old 10-29-2010, 11:10 AM



2500HeavyDuty, what needs to come off to do the drivers side. Is there a similar right up for it. I see theres two fuel lines that need to be moved and some sort of box. What do I need to know before I attempt to move them.


Last edited by juliusvatalaro; 10-29-2010 at 11:11 AM.. Reason: wrong side of engine
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Old 10-31-2010, 12:49 PM
2500HeavyDuty's Avatar
Super Moderator
Status: Hot pockets?!?! THEY WERE LEAN POCKETS!!


the two fuel lines, the box, ecm wire harness needs to be pushed out the way, and rad hose

2500HeavyDuty's Sig:01' Dmax Ec/Lb: EFI Live tuned by me, Suncoast stage IV, Banks Intake w/ super scoop, 5" exhaust to 6" Stack, Ported intake Horn, Hybrid FPR, Coated CAC pipes, AirDog 150, Gauges, 35's Mounted on H2's lowered. and a Few more mods.
gt42 up the sleeve

06' Jetta TDI: Bone stock 42MPG @ 80mph.


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Old 11-01-2010, 11:25 AM



If a cup comes out and you loose coolant into the cylinder; you could suck the majority of it out with a shop-vac. Just take a small piece of plastic tubing or similar and duct tape it the the end of your shop-vac hose. Once the majority is out its still a good idea to turn the engine over to make certain its clean, but much less messy that way.
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Old 11-08-2010, 07:42 PM
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Go RAVENS!!!!!!!!!
Status: Steelers still SUCK!!!!!!


Great write up!
This should be a sticky!

scottsjeeprolet's Sig:1999 Dodge DRW EXcab, 4X4, S&B Intake (thanks Holland Court Diesel), Dual exhaust, , Adrenaline w/Pulse AirDog 100. BD valve body, TCI TC, Isspro new Dodge white gauges. F1 Mach 3's, HX 35/40,SP Diesel Trans controller .

Check out what's going on in MD HERE

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Old 11-16-2010, 09:35 AM



Originally Posted by 2500HeavyDuty View Post
Put a bead of sealant to the bottom of the upper valve cover about 2-3mm wide and 1mm high and install the upper valve cover.

Click the image to open in full size.

Tighten bolts to 8 Nm or 71 lbin in this sequence

Click the image to open in full size.

Install injector lines and keepers

Click the image to open in full size.

Now put the the FF and FICM back on and ur ready to do the driver side

Thanks to mytmousemalibu (chris) for for giving me tips and hints on replacing the injectors
LB7: LB7 Injector replacment hints & tips! DIY - Duramax Diesels Forum
Great job. much better than a Chilton's manual. i will be doing all 8 myself as soon as they come in. i was quoted 5400.00 at a local dealer. thanks for posting awesome.
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Old 11-17-2010, 06:40 PM


Default Injectors

Yea I have been smoking for a few months, and found out it was my injectors, have 4 bad ones, looked every where for injectors all very costly, and alot of remans, so when I asked my mech. he said he only used new from dealer, so I called the dealer here in Oakdale, CA. and asked if the injectors where new or reman. and was told they where reman. for 350.00 each and a 150.00 core charge, and that they are boshe remans. I got mine on ebay for 231.00 and no core, so is there anyone that you guys know that will buy the cores, if so please let me know, getting ready to change them out after thanksging, so any help would be great.
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Old 11-18-2010, 08:45 AM



Most of the Bosh injectors out there for 350.00 or less will be re manufactured.If you are looking for injectors on a tight budget try Pensacola Diesel. They have a super kit it contains 8 reman. injectors wich are stock and 8 new glow plugs,with gaskets and o rings for 1679.00 not too bad . they will ship in 2 days. they will also give you 30 days to get the cores to them with out charging you for them up front.
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Old 11-19-2010, 12:21 PM
C-Power's Avatar
Diesel Fan



pensecola sucks.............. all i've ever seen is posts on how junk thier injectors are, remember you get what you pay for in the diesel world..........

as far as those cores ill have to try and find him but i know a guy that was buyin them........

C-Power's Sig:94 2500 RC LB, CUMMINS 2.6 wanna be.......

looking to get rid of the cummins and get back into a dmax.......
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Old 11-24-2010, 08:53 PM
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Status: I aint just wistlin' dixie

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Very good write up, i'm sure i will archive this for future ref... Thanks
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Old 11-25-2010, 09:16 AM




Do you mind PMing me with the Website you used to buy the injectors? I'm new here and can't PM you.


Great write up 2500HEAVYDUTY............
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