01-04.5 LB7 Duramax PowertrainDiscussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect
ok, Ive been on the site for almost a year now. And Ive noticed alot of people talk down on the LB7. I think the LB7 is a great motor, other than injectors. My LB7 has 127,000miles, with original injectors. And it makes great power, so I like it. Our company service truck has a LLY Dmax, we've replaced the injectors 3 times, and its overheated once. Nothin against LLY guys but I like the LB7 better than the LLY. LBZ is just awesome, nothin bad to say to that!
__________________ -2001 Chevrolet 2500HD LB7 Duramax 4x4:
PPE Standard Xcelerator
AFE Stage 2 Intake
PPE Boost Increase Valve
MBRP 5" Straight Pipe w/ 6in Tip
TransGo Shift Kit
18in Prova Alloy Wheels
33x12.50 Nitto Terra Grappler All-Terrains
Autometer ES Series Gauges
I dig mine.. havent had an issue with anything yet. rear u-joints lol that about it.
__________________ PIN IT TO WIN IT
2003 2500HD ECSB Duramax
38,000 Miles
AFE Stage 2 Intake
4" Turbo back strait piped silverline
Quad Stealth 2 (EFI live in due time)
AD100- Thx Todd MPF
Autometer Cobalts, Colormatched pillar
285/75/16 MTR's
Every window 20%
I love mine never had any problems out of the injectors so far
__________________ 03 CHEVY LB7 ON 33X12.50X20
EFI TUNNED BY ME, TIE ROD SLEEVES
CROWER RODS, MAHLE PISTONS
ARP HEAD AND MAIN STUDS
6" MITER CUT STACKS K&N INTAKE
150 FASS
My LB7 is at 190,000 and I had the injectors done at 108,000. I have two more that need to be replaced again but the diagnostic isn't quite severe enough to appease the dealer to replace under warranty. I have to drive it for the next 9,500 miles hoping that it starts to run bad enough to get the warranty to cover before 200,000 so I don't have to shell out an additional $3,500 to make my truck run normal again. Other than this one fault and a recent issue I'm about to make a thread about, I love my truck!
__________________ 2004 GMC 3500 Sierra 4 Door Dually LB7 Duramax (Stock)
Ive got 73k some on it never had a thing wrong with it besides trans out of it
__________________ 03 CHEVY LB7 ON 33X12.50X20
EFI TUNNED BY ME, TIE ROD SLEEVES
CROWER RODS, MAHLE PISTONS
ARP HEAD AND MAIN STUDS
6" MITER CUT STACKS K&N INTAKE
150 FASS
the only problem i have had with my truck is waterpumps....i have had it replaced 3 times. I cant complain much though...i have only paid $100 for all 3 pumps thanks to warranty and me being persistant with the dealer.
__________________ 2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7
4" turbo back MBRP exhaust, Cognito UCAs & HD tierods
TST Powermax Programmer, Diablosport Predator
285/75-16 BFG T/A KOs, Eagle Alloys Series 187
Clifford 2 way remote start, High Idle, Bilstein 5100s, 1.5" lift blocks
AFE Magnum Force Stage 2 Proguard 7 intake Waiting install:Rancho Steering stabilizer....all thanks to NorCal Truck
Location: in between some fields of Parke County Indiana
Posts: 249
Mine has 166k on it, injectors replaced at 85K, and I'm in the process of doing them again, on my dime. I love my truck, and wouldn't want to trade it for anything.
__________________ 2002 2500HD Crew Cab Short Bed
4" MBRP Turbo Back
PPE Standard, PPE Boost valve, Optix Boost, Pyro, Trans temp
B&W TurnoverBall and tow mirrors self installed
Rhino'd bed, 285 ProComp EXtreme A/Ts & T-bars cranked
Banks RamAir and modded intake horn
Allison Deep Pan with MikeL cooler
(waiting on my injectors to come back )
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I love my truck, and wouldn't want to trade it for anything.
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