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Forums
Engine Discussions
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GM Duramax Engines
Discuss the 2001 LB7 through 2011 LML engines and their associated components
01-04 LB7
GM Diesel Engines: 01-04 LB7
Threads
299
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3.9K
Threads
299
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3.9K
J
Lb7 tune
Dec 22, 2020
Josh44
04.5-05 LLY
GM Diesel Engines: 04.5-05 LLY
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155
Messages
2.2K
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155
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2.2K
Need advise asap truck starts then stalls
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06-07 LLY/LBZ
GM Diesel Engines: 06-07 LLY/LBZ
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321
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321
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Dash display Haywire after parking on steep incline 45 degrees.
Jan 22, 2021
THEFERMANATOR
07.5 - 2010 LMM
GM Diesel Engines: 07.5-09 LMM
Threads
81
Messages
993
Threads
81
Messages
993
M
Lift pump
Mar 5, 2019
Mark4897
2011-2016 LML Duramax
Discuss GM's upcoming LML powerplant here
Threads
67
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1K
Threads
67
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1K
Dual fuel tank issue
Jan 27, 2021
THEFERMANATOR
2017 L5P Duramax
Threads
6
Messages
153
Threads
6
Messages
153
S
2020 3500 Parked ~ 48 hours - Dead battery no apparent reason. FYI and any thoughts?
Feb 5, 2021
schiker
2.8L Duramax
2.8L Duramax used in the Colorado and Canyon midsize trucks.
Threads
8
Messages
304
Threads
8
Messages
304
Thinking about a baby dmax
Jan 20, 2021
red
2019+ Duramax 3.0L I6
Discuss the new 2019+ Duramax I6 3.0L Turbo Diesel
Threads
5
Messages
86
Threads
5
Messages
86
Drag race video comparing the GM V8s vs the New I6 Duramax 3.0L
Mar 2, 2020
BIGR
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Sticky
Proper way to check balance rates
THEFERMANATOR
Jan 30, 2014
2
3
Replies
45
Views
87K
Monday at 9:37 AM
THEFERMANATOR
Sticky
History of the DURAMAX design
THEFERMANATOR
Aug 13, 2017
Replies
17
Views
6K
Aug 15, 2017
Will L.
Sticky
Duramax CRD CP3 injection system
gmctd
May 4, 2008
Replies
3
Views
15K
Dec 8, 2009
Vrabel
V
Sticky
How To Tell Engine From VIN
durallymax
Nov 10, 2009
Replies
0
Views
3K
Nov 10, 2009
durallymax
Sticky
Does Your Duramax Tick/Knock?? Read First.
durallymax
Feb 27, 2009
Replies
0
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3K
Feb 27, 2009
durallymax
Limp Mode Codes P2149,P0202,P0203,P0205, P0208
Mousie2004
Jan 28, 2020
Replies
7
Views
3K
Sep 18, 2020
sparkles
S
04 LB7 leaking fuel profusely behind drivers side head
vstech
Mar 7, 2020
Replies
2
Views
968
Mar 7, 2020
THEFERMANATOR
Two GM Duramax Trucks With High Mileage
BIGR
Jan 13, 2020
Replies
2
Views
946
Jan 13, 2020
THEFERMANATOR
LML ,broken crank
6.2 turbo
Dec 19, 2019
Replies
14
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2K
Jan 2, 2020
6.2 turbo
Lb7 from hell
Bad dually
Aug 12, 2017
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19
Views
2K
Nov 22, 2019
Jaryd
J
Idle pulsesating
Jmac42
Nov 5, 2019
Replies
3
Views
877
Nov 5, 2019
THEFERMANATOR
educate me please
trouttrooper
Jan 25, 2016
Replies
7
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1K
Oct 9, 2019
THEFERMANATOR
C
07 duramax diesel
C. Browe
Sep 28, 2019
Replies
11
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1K
Oct 1, 2019
RI Chevy Silveradoman
H
04 C4500 with Duramax diesel
Hsolay
Sep 4, 2019
Replies
14
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1K
Sep 17, 2019
THEFERMANATOR
F
Coolant out recovert tank
forift2001
Jul 26, 2019
Replies
5
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948
Jul 27, 2019
Will L.
No bueno
Will L.
May 15, 2019
Replies
12
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1K
May 19, 2019
WarWagon
B
LMM 1 cylinder high injector pressure only when cold and smokes
Builder1972
Jan 21, 2019
Replies
10
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2K
Jan 26, 2019
Builder1972
B
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Fuel pump problems
Diesel Trucks Rock
Jan 18, 2019
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0
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797
Jan 18, 2019
Diesel Trucks Rock
D
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8.1 to 5.3 swap
Late96
Dec 11, 2018
Replies
3
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982
Dec 12, 2018
tanman_2006
D
Hot engine.
Deuce02001
Aug 16, 2018
Replies
10
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1K
Aug 18, 2018
THEFERMANATOR
M
2005 GMC C4500
Maggard
Jan 8, 2018
Replies
5
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1K
Jan 9, 2018
WarWagon
W
new to efi, looking a lmm c&c with duel tanks
William Cheek
Dec 24, 2016
Replies
19
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2K
Feb 5, 2017
C20ELEPHANT
KENNEDY's special calibration 01-05 fan clutch
THEFERMANATOR
Aug 10, 2016
Replies
6
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2K
Sep 21, 2016
Sand
S
S
Mechanical pump Dmax!
scottm
Jul 6, 2016
Replies
6
Views
2K
Jul 10, 2016
btfarm
L
Diagnosing dual tank transfer problems
leather guy
Jun 24, 2016
Replies
9
Views
1K
Jun 25, 2016
THEFERMANATOR
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