lb7

  1. LB7_01DURAMAX

    Injector problem

    I put some reman 30% over injectors in my truck from Lincoln diesel in 2015, since then I have only put 30k on the truck. Religiously changed fuel filters and ran hot shots secret additive. I got truck out a couple weeks ago and changed oil and has fuel in oil. So I pulled valve covers and ran...
    • LB7_01DURAMAX
    • Thread
    • injectors lb7 lincolndiesel
    • Replies: 12
    • Forum: LB7
  2. B

    2008 lmm tuning questions

    So I sold my 06 lbz got this lmm lift pump,4” deleted exhaust, dsp5, and a v2 autocal Idaho rob all this was done when I bought it thing is no position on the dsp5 feels any different?. Gas mpg sucks only 15mpg truck has a 6” rcd lift on 35s btw any idea if the tunes even are loaded?.
  3. F

    Fuel rail lines bursting

    Did head gaskets studs new injectors new return lines with bolts and washers Truck started fine a few times. I drove it down road about mile ran good pulled back in my driveway that was covered with snow. So I gave some throttle and sent it sideways. Then it shut off. After going through fuel...
    • FletchMD
    • Thread
    • lb7
    • Replies: 17
    • Forum: LB7
  4. kelso06

    4wd problems

    2004 chevy, aftermarket keys (previous owner) torsion bar bolts almost all the way out, new tierods, control arms, ball joints. Drives straight and doesnt jerk in 2wd but in 4wd if you even turn the wheel just a little bit itll jerk the wheel super hard in the direction youre turning. Kinda...
  5. Starfire47

    Limp Mode P0700 P0776

    Looking for input with an issue I have been chasing my tail on. Have a 2003 Chevy Lb7, has a generic canned tune (bully dog?) from the previous owner. 4" Exhaust, New injectors, K&N Intake, 35" tires, 230,000 miles Never had any issues with the truck, have put 70,000 miles on it since I've...
  6. DAVe3283

    S&B 10-1023 LB7 calibration

    As with all my scripts, they are in metric, so set EFILive to metric first! I just installed a S&B 10-1023 "62 gallon" fuel tank. By my measurements, it is 56.2 gallons total, with about 54.7 gallons usable through the included fuel basket. Might be able to sneak a bit more out through the...
  7. RMJ_LB7

    LB7 Performance Engineering 68 drop in turbo

    Has anyone ran a Performance engineering drop in 68mm turbo for the LB7? The price is insanely good and curious since I have never heard of the company before.
    • RMJ_LB7
    • Thread
    • 68mm drop- lb7 performance engineering turbo
    • Replies: 0
    • Forum: Turbo Talk
  8. C

    Need help with LB7/Allison 5 Speed

    So I had a small incident and ended up having to replace my Tcase tail housing, extension housing, bellhousing, torque converter, and the Adaptor plate on the back of the engine. I got all this done and installed correctly as far as I know (flipped tranny on its face when installing extension...
  9. Lb7x2

    Lacking Power 2001 LB7

    First post on this forum just looking for some help to describe my lack of power on my 2002 LB7. So I’ve got two LB7’s 2001 and 2002. The 2002 seems to have more power and boost than the 2001. Seems like the 2001 really works a lot harder to get itself moving along, although it does have...
    • Lb7x2
    • Thread
    • duramax fuel head gasket help injector lb7 power turbo
    • Replies: 16
    • Forum: LB7
  10. F

    Slow leak on LB7 Transmission

    I am looking for any input at all: 1. I have a small transmission fluid leak (its red). It is not dripping from any one noticeable bolt. When I look at it, the gasket glistens a little as if its wet then pools at one of the transmission pan bolts until it drips. 2. Background history. 190k. I...
  11. R

    fuel problem need help

    OK I have an lb7 was driving down the road blew a huge cloud of white smoke started fuel knock next day would not start figured it was injectors to it to dealer to test the guy said he could not check because truck was only building 600psi of fuel pressure and told me to check the return fuel...
  12. slipagnt

    LB7: No rail pressure

    Can anyone give me the wiring of a fuel pressure sensor on a lb7. I bought the truck a couple of years ago and the previous owner chopped the plug off of the harness for some reason. It has cheesey spade terminals crimped on now but I don't know in which order they plug into the sensor.
    • slipagnt
    • Thread
    • fuel pressure lb7
    • Replies: 5
    • Forum: LB7
  13. wyattearp92

    Ready to mod!

    Alright so many of you probably remember me whining about my injectors dying a few weeks ago, but they're all done now!! WOO! NEW injectors, return lines, fuel filter, oil etc. I was considering selling it after the repairs were done, but now that she's runnin right I just cant do it. So far I...
  14. wyattearp92

    Anybody in utah!!

    I need to have all 8 injectors replaced in my 2001 LB7 with no mods other than exhaust/intake. Anybody recommend a certain shop?
  15. K

    Anyone switch LLY to LB7?

    Hi All, I have a 2005 Duramax with a blown LLY, I have a salvage truck the has a LB7, the motor is out of the LLY already and at this point I am looking to find out if it is possible to do the swap considering the difference in the fuel systems. Does anyone have a clue on this?
  16. C

    FNG from Portland, Or... w/ question

    so I, in the very near future will be purchasing a 2005-2007 classic body style Duramax crew cab 4X4. I have the money and I am just waiting to find the right truck for me... does anybody here have any advice for me based on their buying experience ????? thanks for reading clint patterson
    • Cmax
    • Thread
    • chevy gmc lb7 lifted mileage
    • Replies: 1
    • Forum: Introductions
  17. 0

    LB7: Problem Shifting at 3000RPM

    Hi, I'm new to Diesels. I have a 2003 Silverado 2500HD DuraMax. Everything in it is stock. It has 153K miles. I recently had 4 of the fuel injectors replaced. The others tested out good. The air filter is almost new (about 3K miles - Fram ToughGuard). Earlier today I was parked up a...
  18. N

    Question: LB7 Injectors

    Im going to be needing injectors for my lb7 here in a bit. Im out of warranty for them. I need an opinion on remanufactured injectors. Has anyone used them? I found some for $165 a piece http://yhst-7635365795120.stores.yahoo.net/20du6lb7.html Thanks
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