lb7

  1. 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
  2. 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...
  3. 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
  4. 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...
  5. 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...
  6. 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
  7. 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...
  8. 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?
  9. 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?
  10. 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
  11. 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...
  12. 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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