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GM Diesel Engines
Duramax First Generation: 2001-2004 (LB7)
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The Official LB7 Photo Sharing Thread!
PrivatePilot
May 3, 2011
5
6
7
138
134K
1 mo ago
by
Pinkman
T
Info:
Sticky
Proper way to check balance rates
THEFERMANATOR
Feb 1, 2014
5
6
7
122
297K
Dec 30, 2019
by
Schmidt_153
Info:
Sticky
Injector Cleaning
D.Camilleri
Jan 30, 2014
2
38
50K
Jan 14, 2018
by
Ssnchief
Info:
Sticky
The LB7 FAQ (Frequently Asked Questions)
PrivatePilot
Jul 1, 2011
Locked
0
38K
Jul 1, 2011
by
PrivatePilot
R
Sticky
GM's Injector Policy & Testing Procedure
randy_the_hack
Apr 13, 2009
Locked
0
47K
Apr 13, 2009
by
randy_the_hack
Sticky
LB7 Injector Replacement How To's
RI Chevy Silveradoman
Nov 29, 2008
Locked
0
60K
Nov 29, 2008
by
RI Chevy Silveradoman
S
Apparently LB7s have a problem with their injectors...
structures
9 d ago
13
724
9 h ago
by
OkDually
I
03’Duramax LB7 limp mode
IdigDirt
2 d ago
14
196
9 h ago
by
OkDually
R
Replaced the fpr on the cp3 fuel rail low psi
rowlandj
9 d ago
2
182
7 d ago
by
rowlandj
D
Blue Smoke
desuhu
8 d ago
3
202
7 d ago
by
desuhu
D
Question:
Coolant in the oil after head gasket replacement.
Dquinn1982
23 d ago
5
509
13 d ago
by
dieselolds
N
I think I need a cp3 but I really need advice
nev
2 mo ago
2
29
2K
14 d ago
by
nev
Question:
2004 duramax Howling Noise @ 55-60
Dekygr
1 mo ago
8
770
17 d ago
by
OkDually
S
Best Gaskets for Head Gasket Replacement project...
surferdude22_99
21 d ago
1
145
21 d ago
by
OkDually
N
LB7 "CALIFORNIA EMISSIONS" TURBOCHARGER?
Natames
22 d ago
2
561
22 d ago
by
Natames
2003 lb7 fuel knock
44LLY
26 d ago
6
338
23 d ago
by
44LLY
P
Injector issue?
Pannkuk
29 d ago
2
20
1K
23 d ago
by
biotec
Code P 0612 help!
Andrey 346
27 d ago
8
253
27 d ago
by
Andrey 346
Putting my Duramax up for the winter
jos3ywales
1 mo ago
6
404
1 mo ago
by
CaptSkibi
Has anyone solved the grinding starter problem?
strmh
Feb 12, 2010
14
15
16
319
183K
1 mo ago
by
PNW
M
Question:
disable injector?
marteenj
1 mo ago
4
297
1 mo ago
by
mopar3
C
High mileage LB7's are you out there??
Cowboyd
Aug 30, 2010
32
33
34
665
259K
1 mo ago
by
Riverbound1000
R
Question:
2003 Duramax
Riverbound1000
1 mo ago
5
910
1 mo ago
by
Riverbound1000
Question:
LB7 6.6 Duramax
Mitch 5
1 mo ago
3
471
1 mo ago
by
OkDually
Torque Pro to read balance rates
cowboyjer
Oct 14, 2013
18
18K
1 mo ago
by
Tyler B
M
Question:
bad head gasket or cup?
mikegreene1
2 mo ago
1
352
2 mo ago
by
OkDually
Question:
Fuel leaking after engine is shut off
atmgreg
4 mo ago
2
664
2 mo ago
by
Rick20032500HD
B
Anyone tried a partial fuel sending unit repair?
bh6
7 mo ago
5
641
2 mo ago
by
SpikeDmax
Question:
Dorman LB7 High Pressure Injector Line Failure
arush404
3 mo ago
5
780
2 mo ago
by
SpikeDmax
K
2002 LB7 Can't Pass Smog
kd6kyy
Jan 5, 2018
4
2K
2 mo ago
by
kiwaniansteve
LB7:
Readiness to Test Emmision Monitors
mightyvh
Jul 30, 2015
2
37
28K
2 mo ago
by
CAgiffpolo
W
Question:
03 lb7 coolant loss
Wizkid1
Feb 19, 2019
4
934
2 mo ago
by
LeavittFire
P
Any Newer Injector Solutions...???
PaulRahoi
May 27, 2019
8
1K
2 mo ago
by
LeavittFire
“Service 4wheel drive” light...
vstech
10 mo ago
3
596
2 mo ago
by
LeavittFire
to pull or not to pull (injector cups)
AdrianMiura
Oct 3, 2012
10
13K
2 mo ago
by
LeavittFire
Truck won’t start without ether
Braeleab
2 mo ago
1
317
2 mo ago
by
OkDually
G
died and no start 2004 LB7
guesswork
3 mo ago
8
726
3 mo ago
by
guesswork
Question:
Lb7 injectors
Lb7sucks
3 mo ago
3
566
3 mo ago
by
OkDually
K
03 Won't Start - Newby
katsmax
3 mo ago
1
234
3 mo ago
by
OkDually
Question:
Injector pump or injector
markgarrison8220
3 mo ago
3
371
3 mo ago
by
dieselolds
Question:
2004 Lb7 no start no crank no clue
Lb7idfk
3 mo ago
6
493
3 mo ago
by
Lb7idfk
1
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Duramax First Generation: 2001-2004 (LB7)
Discuss the first generation (2001-2004 LB7) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.
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