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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
41
42
43
Replies
855
Views
24K
Today at 12:38 PM
DAVe3283
Sticky
LLY:
BPU List for LLY's
McRat
Dec 3, 2008
2
Replies
23
Views
55K
Sep 17, 2014
Black HD
B
Normal threads
R
weird fuel pressure issues
razorryan10
24 minutes ago
Replies
1
Views
2
1 minute ago
2004LB7
Failed visual test
JAG91761
Apr 18, 2024
Replies
16
Views
313
Monday at 12:21 PM
2004LB7
E
LLY overheating when idle
ejr12d
Apr 25, 2024
Replies
7
Views
169
May 2, 2024
malibu795
D
Squeal on acceleration
DAKOTAKIDD
Jul 26, 2021
2
3
Replies
56
Views
5K
Apr 28, 2024
DAKOTAKIDD
D
R
Selecting the correct head gaskets?
RPEVEHOUSE
Mar 27, 2024
Replies
8
Views
188
Mar 28, 2024
RPEVEHOUSE
R
M
04 zf6 fuel knock
mamumtsllc
Jul 11, 2023
Replies
6
Views
288
Mar 26, 2024
2004LB7
T
Normal FPR duty cycle?
Trgglynn
Mar 23, 2024
Replies
14
Views
257
Mar 26, 2024
JoshH
T
Fuel injector knock
Trgglynn
Jan 27, 2024
3
4
5
Replies
90
Views
2K
Mar 18, 2024
2004LB7
T
Good compression - Bad balance rate
Trgglynn
Mar 8, 2024
Replies
13
Views
235
Mar 17, 2024
Trgglynn
T
S
U0101 issues
Sethdavis09
Feb 8, 2024
Replies
2
Views
126
Feb 13, 2024
Chevy2005
C
Cracked piston
nojokat
Jan 16, 2024
Replies
11
Views
416
Feb 13, 2024
Chevy2005
C
Injector time…
darkness
Feb 1, 2024
2
Replies
27
Views
348
Feb 2, 2024
1FastBrick
K
2005 Chevy kodiak 4500 Shutting Down
keith@cooglerconstruction
Jan 8, 2024
Replies
10
Views
197
Jan 9, 2024
Ron Nielson
R
Did I blow it up?
nojokat
Dec 29, 2023
Replies
10
Views
399
Jan 2, 2024
Bdsankey
B
Lly will not prime
boskokudra374
Dec 28, 2023
Replies
2
Views
175
Dec 29, 2023
RVN4ME
Chinese FICM
PureHybrid
Dec 12, 2023
2
3
Replies
41
Views
1K
Dec 20, 2023
2004LB7
P1631 no crank no start
Wyatt.bilodeau
Dec 19, 2023
Replies
5
Views
192
Dec 19, 2023
Ron Nielson
R
C
It's HG time in the near future. Any recommendations on parts.
chevymec
Oct 1, 2023
2
Replies
24
Views
967
Dec 17, 2023
pl_silverado
H
lly ficm emulation
howtonhawky
Dec 6, 2023
2
Replies
23
Views
1K
Dec 14, 2023
TheBac
S
Lly no start after engine swap
Sethdavis09
Dec 11, 2023
Replies
1
Views
124
Dec 11, 2023
2004LB7
A
2005 LLY to 2006 LLY
ajfixedit
Dec 7, 2023
Replies
3
Views
219
Dec 8, 2023
ajfixedit
A
C
2005 lly miss
cr1967
Nov 29, 2023
Replies
1
Views
129
Nov 29, 2023
2004LB7
F
high pressure pump
Furlong2022
Oct 21, 2023
Replies
14
Views
338
Oct 23, 2023
NC-smokinlmm
Lly coolant coming ftom around injector
bluecollar
Mar 7, 2013
2
Replies
33
Views
10K
Oct 16, 2023
1FastBrick
my buddies LLY with CP3 issue
cdbright
Dec 9, 2019
Replies
15
Views
2K
Sep 29, 2023
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
346
Sep 23, 2023
1FastBrick
coolant leak
02ilduramax
Aug 20, 2023
Replies
2
Views
218
Aug 20, 2023
02ilduramax
P0335 Crank Sensor
hublersminingequipment@gm
Aug 4, 2023
Replies
9
Views
389
Aug 10, 2023
Ron Nielson
R
H
MAF sensor
HylianKnight1997
Aug 7, 2023
Replies
1
Views
196
Aug 7, 2023
2004LB7
05 LLY communication issues
rcashman
Jun 8, 2023
2
Replies
24
Views
710
Jul 11, 2023
rcashman
LLY ECM and TCM pinouts
thunder550
Jun 22, 2015
Replies
13
Views
15K
Jun 30, 2023
rcashman
H
LLY loses fuel rail pressure after it warms up
hottlead
Jun 28, 2023
Replies
3
Views
196
Jun 29, 2023
Bdsankey
Engine Codes while towing Heavy.
JAG91761
Jun 5, 2023
Replies
10
Views
467
Jun 22, 2023
JAG91761
S
2005 Silverado Duramax LLY Crank No Start, please help
shirazdrum
Sep 9, 2020
2
Replies
22
Views
4K
Jun 16, 2023
GabeGrindstaff
G
N
2005 lly
nitrochad
May 28, 2023
2
3
Replies
56
Views
1K
Jun 10, 2023
nitrochad
N
B
wrench and gear light
bwedge
Jun 5, 2023
Replies
2
Views
352
Jun 7, 2023
PureHybrid
Ways to do an oil system flush
DefiantArms
May 29, 2023
Replies
10
Views
448
May 30, 2023
clrussell
HSP Y Bridge oring
DefiantArms
May 27, 2023
Replies
0
Views
218
May 27, 2023
DefiantArms
G
Bad ficm
GabeGrindstaff
May 25, 2023
Replies
6
Views
345
May 25, 2023
2004LB7
G
LLY Rear Engine Coolant Leak
Gkarr22
Mar 11, 2022
Replies
5
Views
622
May 25, 2023
Dozerboy
Blown turbo lly?
Wyatt.bilodeau
Apr 28, 2023
2
Replies
34
Views
844
May 22, 2023
1FastBrick
M
LLY Fuel Rate Low?
Mike_Champ88
Sep 11, 2018
Replies
10
Views
3K
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
431
Apr 21, 2023
2004LB7
D
lag in acceleration on my LLY
DieselD1
Aug 23, 2022
Replies
7
Views
556
Apr 17, 2023
Dozerboy
COOLANT IN AIRBOX WHILE TOWING 5TH WHEEL : TRK TOOK A SH!$
Fastshovelhead
Apr 2, 2023
2
Replies
29
Views
841
Apr 5, 2023
Fastshovelhead
Lbz heads on lly
Wyatt.bilodeau
Feb 28, 2023
Replies
16
Views
540
Mar 9, 2023
1FastBrick
P
Leaking injector or tube?
Peter K
Feb 7, 2023
Replies
9
Views
328
Feb 7, 2023
Peter K
P
M
no ecm/tcm communication
mhowald
Nov 28, 2022
Replies
13
Views
1K
Feb 6, 2023
2004LB7
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