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LLY
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Duramax 6.6 Technical
Duramax Hard Parts
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Sticky threads
M
Sticky
LLY Ficm
mplecha
Sep 3, 2022
33
34
35
Replies
680
Views
11K
30 minutes ago
kidturbo
Sticky
LLY:
BPU List for LLY's
McRat
Dec 3, 2008
2
Replies
23
Views
55K
Sep 17, 2014
Black HD
B
Normal threads
C
It's HG time in the near future. Any recommendations on parts.
chevymec
Sunday at 1:32 PM
Replies
5
Views
57
Sunday at 4:37 PM
2004LB7
my buddies LLY with CP3 issue
cdbright
Dec 9, 2019
Replies
15
Views
1K
Friday at 3:26 PM
376zulu
3
Battery not charging, service air bag, service brake system, only 800rpms WOT, engine oil life stays at 5%, fuel filter life no longer shown.
BraydenVan05LLY
Sep 22, 2023
Replies
14
Views
206
Sep 23, 2023
1FastBrick
coolant leak
02ilduramax
Aug 20, 2023
Replies
2
Views
75
Aug 20, 2023
02ilduramax
P0335 Crank Sensor
hublersminingequipment@gm
Aug 4, 2023
Replies
9
Views
159
Aug 10, 2023
Ron Nielson
R
H
MAF sensor
HylianKnight1997
Aug 7, 2023
Replies
1
Views
76
Aug 7, 2023
2004LB7
D
Squeal on acceleration
DAKOTAKIDD
Jul 26, 2021
2
3
Replies
55
Views
4K
Jul 31, 2023
DAKOTAKIDD
D
M
04 zf6 fuel knock
mamumtsllc
Jul 11, 2023
Replies
4
Views
101
Jul 11, 2023
mamumtsllc
M
05 LLY communication issues
rcashman
Jun 8, 2023
2
Replies
24
Views
389
Jul 11, 2023
rcashman
LLY ECM and TCM pinouts
thunder550
Jun 22, 2015
Replies
13
Views
13K
Jun 30, 2023
rcashman
H
LLY loses fuel rail pressure after it warms up
hottlead
Jun 28, 2023
Replies
3
Views
111
Jun 29, 2023
Bdsankey
Engine Codes while towing Heavy.
JAG91761
Jun 5, 2023
Replies
10
Views
335
Jun 22, 2023
JAG91761
S
2005 Silverado Duramax LLY Crank No Start, please help
shirazdrum
Sep 9, 2020
2
Replies
22
Views
3K
Jun 16, 2023
GabeGrindstaff
G
N
2005 lly
nitrochad
May 28, 2023
2
3
Replies
56
Views
662
Jun 10, 2023
nitrochad
N
B
wrench and gear light
bwedge
Jun 5, 2023
Replies
2
Views
165
Jun 7, 2023
PureHybrid
Ways to do an oil system flush
DefiantArms
May 29, 2023
Replies
10
Views
245
May 30, 2023
clrussell
HSP Y Bridge oring
DefiantArms
May 27, 2023
Replies
0
Views
98
May 27, 2023
DefiantArms
G
Bad ficm
GabeGrindstaff
May 25, 2023
Replies
6
Views
159
May 25, 2023
2004LB7
G
LLY Rear Engine Coolant Leak
Gkarr22
Mar 11, 2022
Replies
5
Views
481
May 25, 2023
Dozerboy
Blown turbo lly?
Wyatt.bilodeau
Apr 28, 2023
2
Replies
34
Views
502
May 22, 2023
1FastBrick
M
LLY Fuel Rate Low?
Mike_Champ88
Sep 11, 2018
Replies
10
Views
2K
May 10, 2023
saswanny
S
D
LLY:
upper radiator hose collapsed when engine is cold
dogguy
Jun 22, 2014
Replies
4
Views
3K
May 9, 2023
TheBac
Rolled my truck.
baggedLB7
Apr 23, 2022
Replies
16
Views
1K
Apr 30, 2023
baggedLB7
K
GLOW PLUG CAME OUT WITH THE THREAD
kawasaki636
Apr 20, 2023
Replies
8
Views
226
Apr 21, 2023
2004LB7
D
lag in acceleration on my LLY
DieselD1
Aug 23, 2022
Replies
7
Views
349
Apr 17, 2023
Dozerboy
Lly coolant coming ftom around injector
bluecollar
Mar 7, 2013
2
Replies
31
Views
9K
Apr 6, 2023
justin722
J
COOLANT IN AIRBOX WHILE TOWING 5TH WHEEL : TRK TOOK A SH!$
Fastshovelhead
Apr 2, 2023
2
Replies
29
Views
506
Apr 5, 2023
Fastshovelhead
Lbz heads on lly
Wyatt.bilodeau
Feb 28, 2023
Replies
16
Views
357
Mar 9, 2023
1FastBrick
P
Leaking injector or tube?
Peter K
Feb 7, 2023
Replies
9
Views
203
Feb 7, 2023
Peter K
P
M
no ecm/tcm communication
mhowald
Nov 28, 2022
Replies
13
Views
799
Feb 6, 2023
2004LB7
Tuning idle hiss out
Wyatt.bilodeau
Jan 23, 2023
Replies
10
Views
313
Jan 24, 2023
Wyatt.bilodeau
J
LLY Duramax FICM
Joshguy03
Jan 10, 2023
Replies
2
Views
438
Jan 10, 2023
Ne-max
Whining noise
t.rider.013
Dec 31, 2022
Replies
14
Views
357
Jan 1, 2023
08lmm72mm
0
Glow plug module
t.rider.013
Dec 22, 2022
Replies
3
Views
262
Dec 26, 2022
ZeroGravity58
2004.5 block heater
t.rider.013
Dec 7, 2022
Replies
1
Views
166
Dec 8, 2022
2004LB7
W
2005 GMC Started fine moved around the yard then poured smoke out of exhaust "smelled like fuel" then shut down no start now
Walt171
Dec 5, 2022
Replies
7
Views
289
Dec 6, 2022
Dozerboy
B
05 LLY Timing Gear Carnage
Blackbird1877
Nov 26, 2022
Replies
7
Views
318
Nov 28, 2022
KyleC4
K
L
2006 c5500 topkick U0100 code
LOCALTOWINGSERVICE@YAHOO.
Nov 22, 2022
Replies
2
Views
303
Nov 22, 2022
Ron Nielson
R
3
Engine bay very hot
376zulu
Nov 9, 2022
Replies
8
Views
463
Nov 11, 2022
376zulu
3
L
05 LLY Stalling in wet conditions
LLY23
Oct 31, 2022
Replies
1
Views
282
Nov 1, 2022
2004LB7
L
Lb7 Ficm to a LLY Motor
lly1998
Aug 5, 2022
Replies
2
Views
413
Oct 22, 2022
turbovan
T
Error code meanings
t.rider.013
Oct 20, 2022
Replies
2
Views
261
Oct 21, 2022
Bdsankey
2004.5 white smoke issue
t.rider.013
Oct 18, 2022
Replies
11
Views
407
Oct 19, 2022
Bdsankey
Soft C0035, C0055 codes as soon as you turn the key on.
vern650
Oct 8, 2022
Replies
1
Views
189
Oct 8, 2022
Ron Nielson
R
D
Fuel pressure regulator
dproffitt
Aug 28, 2022
2
Replies
20
Views
884
Sep 24, 2022
dproffitt
D
C
iat sensor
Childsplaydooley
Sep 22, 2022
Replies
4
Views
213
Sep 22, 2022
Childsplaydooley
C
LLY:
No Power Black Smoke at Random
ShredLordXx
Sep 11, 2017
2
Replies
23
Views
6K
Sep 18, 2022
08lmm72mm
0
J
LLY Crank/no start
Jstahl71
Aug 16, 2022
2
Replies
31
Views
1K
Aug 19, 2022
JoshH
LLY fuel pressure issue
ikeG
Aug 11, 2022
Replies
4
Views
382
Aug 15, 2022
ikeG
M
05 LLY, remand long block, sitting 2 years, new injectors etc. Crank no start.
Mtnchevy
Jul 26, 2022
Replies
9
Views
586
Aug 7, 2022
West
W
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Duramax 6.6 Technical
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