Search
Everywhere
Threads
This forum
Search titles only
By:
Everywhere
Threads
This forum
Search titles only
By:
Home
How To
Tech
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
New showcase items
New showcase comments
Members
Current visitors
New profile posts
Search profile posts
Showcase
New items
New comments
Latest reviews
Search showcase
Tools
ET Calculator
Forums
Log in
Register
Search
Everywhere
Threads
This forum
Search titles only
By:
Everywhere
Threads
This forum
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
LLY
Forums
Duramax 6.6 Technical
Duramax Hard Parts
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
1
2
3
…
Go to page
Go
27
Next
1 of 27
Go to page
Go
Next
Last
Filters
Show only:
Loading…
Sticky threads
M
Sticky
LLY Ficm
mplecha
Sep 3, 2022
46
47
48
Replies
953
Views
36K
Oct 9, 2024
DuramaxNWA
D
Sticky
LLY:
BPU List for LLY's
McRat
Dec 3, 2008
2
Replies
23
Views
55K
Sep 17, 2014
Black HD
B
Normal threads
Wiring Issues
ikeG
Oct 24, 2024
Replies
9
Views
174
Oct 25, 2024
1FastBrick
D
Start and die
Devo44
Oct 17, 2024
Replies
8
Views
128
Oct 18, 2024
JoshH
M
04 zf6 fuel knock
mamumtsllc
Jul 11, 2023
Replies
11
Views
664
Oct 15, 2024
2004LB7
S
LLY Truck Crank Signal Issue - P0335
Shane H
Sep 15, 2024
Replies
7
Views
289
Oct 10, 2024
Shane H
S
F
2005 lly duramax map sensor/wiring issue
flyinwrenches
Sep 26, 2024
Replies
14
Views
236
Sep 27, 2024
2004LB7
N
LLY Coolant Leak (Front Driver's Side)
Npushor
Sep 24, 2024
Replies
0
Views
112
Sep 24, 2024
Npushor
N
C
LBZ/LLY Cab swap
Carsonmf14
Sep 18, 2024
Replies
10
Views
269
Sep 22, 2024
Carsonmf14
C
2
Fuel issues after installing fuel pressure relief valve and shim kit
2004 sierra lly
Aug 17, 2024
Replies
2
Views
154
Aug 18, 2024
2004 sierra lly
2
LLY Limp mode - P0203 and P2149
NevadaLLY
Jul 23, 2024
2
Replies
38
Views
782
Aug 14, 2024
2004LB7
LLY Headgaskets/ studs and everything else I should replace...
DieselDaze
Jul 4, 2024
2
Replies
25
Views
514
Jul 9, 2024
PureHybrid
T
05 LLY Baro wiring diagram
Trgglynn
Jun 23, 2024
Replies
4
Views
188
Jun 24, 2024
Ron Nielson
R
LLY issue and Its been a long time [emoji1]
motoking_1990
Jun 13, 2024
Replies
6
Views
246
Jun 15, 2024
motoking_1990
R
weird fuel pressure issues
razorryan10
May 9, 2024
Replies
5
Views
235
May 11, 2024
razorryan10
R
Failed visual test
JAG91761
Apr 18, 2024
Replies
16
Views
489
May 6, 2024
2004LB7
E
LLY overheating when idle
ejr12d
Apr 25, 2024
Replies
7
Views
406
May 2, 2024
malibu795
D
Squeal on acceleration
DAKOTAKIDD
Jul 26, 2021
2
3
Replies
56
Views
7K
Apr 28, 2024
DAKOTAKIDD
D
R
Selecting the correct head gaskets?
RPEVEHOUSE
Mar 27, 2024
Replies
8
Views
419
Mar 28, 2024
RPEVEHOUSE
R
T
Normal FPR duty cycle?
Trgglynn
Mar 23, 2024
Replies
14
Views
655
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
378
Mar 17, 2024
Trgglynn
T
S
U0101 issues
Sethdavis09
Feb 8, 2024
Replies
2
Views
372
Feb 13, 2024
Chevy2005
C
Cracked piston
nojokat
Jan 16, 2024
Replies
11
Views
557
Feb 13, 2024
Chevy2005
C
Injector time…
darkness
Feb 1, 2024
2
Replies
27
Views
625
Feb 2, 2024
1FastBrick
K
2005 Chevy kodiak 4500 Shutting Down
keith@cooglerconstruction
Jan 8, 2024
Replies
10
Views
370
Jan 9, 2024
Ron Nielson
R
Did I blow it up?
nojokat
Dec 29, 2023
Replies
10
Views
625
Jan 2, 2024
Bdsankey
B
Lly will not prime
boskokudra374
Dec 28, 2023
Replies
2
Views
311
Dec 29, 2023
RVN4ME
Chinese FICM
PureHybrid
Dec 12, 2023
2
3
Replies
41
Views
2K
Dec 20, 2023
2004LB7
P1631 no crank no start
Wyatt.bilodeau
Dec 19, 2023
Replies
5
Views
313
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
1K
Dec 17, 2023
pl_silverado
H
lly ficm emulation
howtonhawky
Dec 6, 2023
2
Replies
23
Views
2K
Dec 14, 2023
TheBac
S
Lly no start after engine swap
Sethdavis09
Dec 11, 2023
Replies
1
Views
245
Dec 11, 2023
2004LB7
A
2005 LLY to 2006 LLY
ajfixedit
Dec 7, 2023
Replies
3
Views
330
Dec 8, 2023
ajfixedit
A
C
2005 lly miss
cr1967
Nov 29, 2023
Replies
1
Views
199
Nov 29, 2023
2004LB7
F
high pressure pump
Furlong2022
Oct 21, 2023
Replies
14
Views
537
Oct 23, 2023
NC-smokinlmm
Lly coolant coming ftom around injector
bluecollar
Mar 7, 2013
2
Replies
33
Views
11K
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
436
Sep 23, 2023
1FastBrick
coolant leak
02ilduramax
Aug 20, 2023
Replies
2
Views
296
Aug 20, 2023
02ilduramax
P0335 Crank Sensor
hublersminingequipment@gm
Aug 4, 2023
Replies
9
Views
674
Aug 10, 2023
Ron Nielson
R
H
MAF sensor
HylianKnight1997
Aug 7, 2023
Replies
1
Views
316
Aug 7, 2023
2004LB7
05 LLY communication issues
rcashman
Jun 8, 2023
2
Replies
24
Views
1K
Jul 11, 2023
rcashman
LLY ECM and TCM pinouts
thunder550
Jun 22, 2015
Replies
13
Views
17K
Jun 30, 2023
rcashman
H
LLY loses fuel rail pressure after it warms up
hottlead
Jun 28, 2023
Replies
3
Views
361
Jun 29, 2023
Bdsankey
Engine Codes while towing Heavy.
JAG91761
Jun 5, 2023
Replies
10
Views
675
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
733
Jun 7, 2023
PureHybrid
Ways to do an oil system flush
DefiantArms
May 29, 2023
Replies
10
Views
638
May 30, 2023
clrussell
HSP Y Bridge oring
DefiantArms
May 27, 2023
Replies
0
Views
281
May 27, 2023
DefiantArms
G
Bad ficm
GabeGrindstaff
May 25, 2023
Replies
6
Views
444
May 25, 2023
2004LB7
1
2
3
…
Go to page
Go
27
Next
1 of 27
Go to page
Go
Next
Last
You must log in or register to post here.
Forums
Duramax 6.6 Technical
Duramax Hard Parts
Top
Bottom