Replacing one injector?

boatwrks · 12-08-2012, 07:43 PM

Just bought a good truck a while back it has a slight blue white haze once in a while took it to 2 different shops had balance rates checked and a po. 304 code came up number 4 miss fire and balance rates came back good except this one was higher. You can feel it miss fire once in a while when sitting at intersections then it clears up and seems to be good. I was wondering since its so close to xmas I was thinking of changing just the one for now. Would this fix my smoke issue for the time being both shops wanted 3500-4000 to change all four on that side seems a bit high? Thanks

Firefighter08 · 12-08-2012, 07:49 PM

With the amount of work required to replace injectors on an lb7 I would do all 4 while your in there. I wouldn't want to tear it down again a few miles later to do the other 3.

dieseladdiction23 · 12-08-2012, 07:54 PM

X2 atleast do one bank but obviously would be best to do all 8

**01 D_Max** · 12-08-2012, 07:54 PM

For that price most shops do all 8. I have seen people do 1 at a time, but afterone is replaced another goes within a few weeks to months. Its alot of work so it would be cheaper to do at least 1 side if not both.

Hondarider552 · 12-08-2012, 08:05 PM

If you cant swing all 8, it's best to replace a bank.

ferdkila · 12-08-2012, 08:11 PM

Quote:

Originally Posted by Hondarider552

If you cant swing all 8, it's best to replace a bank.

X2 at least do all 4 on one side that the bad injector is on

Sent from my iPhone using AutoGuide.com App

Jeff M. · 12-09-2012, 07:01 AM

Bosch Remans can be had for $200ea, for what it'll cost you in labor you should at least do that bank for another $600.

smokinlmm · 12-09-2012, 07:13 AM

Do the whole bank...

**Meshanic** · 12-09-2012, 07:36 AM

So a full injector job would be 7 to 8k! Fire up those 7 cylinders & drive south....just keep driving south.
Seriously though you and a buddy could print a DIY & knock it out for 800 plus the return line seals. Spend that money on your family, it's Christmas!

Awalker · 12-09-2012, 07:57 AM

Were it mine, and the injectors have been done about 80,000 miles ago, I would do just one. So long as I can be sure which injector it is, it is only going to cost $200 for the injector and a few bucks for gaskets and seals. Most of these gaskets are reusable and so you don't need to replace them anyhow. If you do buy the $200 gasket kit, you wouldn't have to buy it again for the next one. From everything i have read, you chances are about the same of a reman injector going bad as they are of a good injector doing the same. I'll take the gamble, but I do all my own work. If I was paying for labor I would have the whole bank done, it at least gets you some sort of warranty.

12-08-2012, 07:43 PM	eBay Motors #1 (permalink)
boatwrks DuramaxForum n00b Join Date: May 2007 Location: calgary Posts: 22	Replacing one injector? Just bought a good truck a while back it has a slight blue white haze once in a while took it to 2 different shops had balance rates checked and a po. 304 code came up number 4 miss fire and balance rates came back good except this one was higher. You can feel it miss fire once in a while when sitting at intersections then it clears up and seems to be good. I was wondering since its so close to xmas I was thinking of changing just the one for now. Would this fix my smoke issue for the time being both shops wanted 3500-4000 to change all four on that side seems a bit high? Thanks __________________ O3 Chev 2500 Duramax Bully dog tripple pup chip Air Aid Intake Straight Pipe Exhaust 6" Tip Autometer Gages.

12-08-2012, 07:49 PM	eBay Motors #2 (permalink)
Firefighter08 Senior Member Join Date: Apr 2011 Location: Corpus Christi, TX Posts: 879	With the amount of work required to replace injectors on an lb7 I would do all 4 while your in there. I wouldn't want to tear it down again a few miles later to do the other 3. __________________ Jacob 2008 SLE GMC C/C. 4" mbrp, FTE resonator, EFI from duramaxtuner, blocked and rerouted. CAT filter adapter with Donaldson filter.

12-08-2012, 07:54 PM	eBay Motors #3 (permalink)
dieseladdiction23 Senior Member Join Date: Oct 2012 Location: Celina, TX Posts: 680	X2 atleast do one bank but obviously would be best to do all 8 __________________ 2004 lb7 ccsb 4x4. Efi live tuned by Rob at ATP, ARP head studs, tie rod sleeves, cognito traction bars, airdog 165, ppe boost valve, turbo horn, s&b cai, LML driver side manifold, cat fuel filter adapter 1r-0749, installed cab lights and tow mirrors. NBS back seats. 6 inch zone offroad lift lowered down and running 305/55/20, optima red tops, Mbrp 5 inch turbo back straight pipe exhaust. Soon to come: Built trans, Built motor, and twins http://www.trollperformance.com/

12-08-2012, 07:54 PM	eBay Motors #4 (permalink)
01 D_Max Offical LB7 "Tech" Join Date: Sep 2010 Location: Saint Johnsville, NY Posts: 3,937	For that price most shops do all 8. I have seen people do 1 at a time, but afterone is replaced another goes within a few weeks to months. Its alot of work so it would be cheaper to do at least 1 side if not both. __________________ -Aaron- 2001 GMC Sierra 2500HD, Limited Edition, CC,SB EFI Live V2 w/dsp5 MAX EFFORT by Idaho Rob, EGT's Never higher than 1150* Cognito Braces, and ATP Sleeves, BD Manifold, ARP H.Studs, BATMO, M.P. mod, MA Aluminum Bleeder, PPE Boost Valve, Banks Ram Air- Intercooler- Wastegate, FASS 150, LBZ FPR, Shimmed FPRV, Built Trans, 4" MBRP turbo back exhaust w/6"tip, Corsa Muffler @180,000-New injectors from Lincoln Diesel, CAT Adapter/filter/spacer Air Lift, Bilstein Shocks, Leveling Kit, Recon LED tail lights & over cab lights, 20" Forged Aluminum WELD Racing Rims, 295/55/20 Nitto Trail Grappler Tires, MANY More extras inside...

12-09-2012, 07:36 AM	eBay Motors #9 (permalink)
Meshanic All In Join Date: Jan 2011 Location: West Texas Posts: 86	So a full injector job would be 7 to 8k! Fire up those 7 cylinders & drive south....just keep driving south. Seriously though you and a buddy could print a DIY & knock it out for 800 plus the return line seals. Spend that money on your family, it's Christmas! __________________ cc/sb lb7, lowered, cut & delipped, lbz rods, keyed, balanced, ati, so cal flex, studded, +40 nozzles, going 360/480 from SDP

12-08-2012, 08:05 PM	eBay Motors #5 (permalink)
Hondarider552 Banned Join Date: Nov 2008 Location: Arizona Posts: 17,269	If you cant swing all 8, it's best to replace a bank.

12-09-2012, 07:01 AM	eBay Motors #7 (permalink)
Jeff M. DuramaxForum n00b Join Date: Nov 2012 Posts: 24	Bosch Remans can be had for $200ea, for what it'll cost you in labor you should at least do that bank for another $600.

12-09-2012, 07:13 AM	eBay Motors #8 (permalink)
smokinlmm Banned Join Date: Jan 2010 Location: On the Coast of Somewhere Beautiful Posts: 5,738	Do the whole bank...

12-09-2012, 07:57 AM	eBay Motors #10 (permalink)
Awalker Junior Member Join Date: Apr 2011 Location: Cave Creek, AZ Posts: 96	Were it mine, and the injectors have been done about 80,000 miles ago, I would do just one. So long as I can be sure which injector it is, it is only going to cost $200 for the injector and a few bucks for gaskets and seals. Most of these gaskets are reusable and so you don't need to replace them anyhow. If you do buy the $200 gasket kit, you wouldn't have to buy it again for the next one. From everything i have read, you chances are about the same of a reman injector going bad as they are of a good injector doing the same. I'll take the gamble, but I do all my own work. If I was paying for labor I would have the whole bank done, it at least gets you some sort of warranty. __________________ Walker, 2002 GMC Sierra 4x4 with a Duramax 250,000 miles

Remove Advertisements Sponsored Links
Duramax Forum Advertisement

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode