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Duramax Hard Parts
Dmax Performance Parts and related discussions.
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Duramax 6.6 Technical
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LB7
New
2.2K
31.6K
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2.2K
Messages
31.6K
SAC injector whine?
Apr 10, 2024
DAVe3283
LLY
New
1.3K
17K
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1.3K
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Failed visual test
Friday at 7:30 PM
Lennydmaxguy
LBZ
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1.1K
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14.1K
LBZ Fan Clutch
Thursday at 3:38 PM
DAVe3283
LMM
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749
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Truck dies at random, no codes
Jan 21, 2024
BLACKMAX1
LML
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626
8K
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626
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P01F0
Sunday at 11:36 AM
the MISTRIS
L5P
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108
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108
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O
glow plugs
Mar 31, 2024
oldwhitehorse
Transfer Case / Axles / Driveshafts Tech
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287
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287
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J
2003 duramax 2500 HD 4 wheel drive Strange noise
Apr 3, 2024
Jaysbay
Van
17
310
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17
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310
D
Custom Van Air Intake
Apr 18, 2023
DieselMike70
Part #'s
395
2.2K
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395
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2.2K
2007 LMM Front Diff Fill Plug P/N
Aug 16, 2023
1FastBrick
Turbo Talk
New
"Nitrous is nice, but it's best to be Blown"
1.9K
43.6K
Threads
1.9K
Messages
43.6K
Turbo Vane Position code, do I get a new turbo system?
Yesterday at 9:40 PM
Chevy1925
General Fuel System & Exhaust Questions
363
7.6K
Threads
363
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7.6K
Fleece Performance 2004.5-2007 Duramax PowerFlo In-tank Lift Pump?
Feb 27, 2024
malibu795
Fluids and Maintenance
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651
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Threads
651
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10.7K
Got Sludge?
24 minutes ago
Dozerboy
The Pharmacy
Nitrous, Propane, Meth, oxidizers
172
3.2K
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172
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3.2K
Nitrous
Jun 5, 2022
Baking83
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Sticky threads
Sticky
LLY:
BPU List for LLY's
McRat
Dec 3, 2008
2
Replies
23
Views
55K
Sep 17, 2014
Black HD
B
Normal threads
LLY:
Electric fans
quinton
May 11, 2013
2
Replies
39
Views
12K
Jun 27, 2023
Timelock
T
M
LLY:
Webasto/Espar heater instal
Mike_Champ88
Dec 14, 2018
Replies
13
Views
4K
May 15, 2023
Gumby83
G
D
LLY:
upper radiator hose collapsed when engine is cold
dogguy
Jun 22, 2014
Replies
4
Views
3K
May 9, 2023
TheBac
LLY:
No Power Black Smoke at Random
ShredLordXx
Sep 11, 2017
2
Replies
23
Views
7K
Sep 18, 2022
08lmm72mm
0
V
LLY:
flywheel housing bolt size?
valleyduramax
Oct 5, 2016
Replies
6
Views
2K
Jan 12, 2021
DAVe3283
LLY:
I need an LLY refresher course
fl0w3n
May 25, 2020
Replies
4
Views
799
May 26, 2020
Burn Down
LLY:
Questions I have been unable to answer.
DuramaximusPrime
Apr 25, 2020
Replies
12
Views
1K
Apr 27, 2020
Dozerboy
LLY:
ABS light on
quinton
Apr 22, 2020
Replies
8
Views
736
Apr 23, 2020
quinton
D
LLY:
Light smoke after drive and idling
DAKOTAKIDD
Aug 2, 2019
Replies
8
Views
1K
Apr 19, 2020
Burn Down
LLY:
Does this deck surface look ok?
thunder550
Nov 30, 2014
Replies
12
Views
3K
Apr 17, 2020
Chevy1925
LLY:
Where To Draw The Line? - Actual Experiences Wanted
04LB7yz
Sep 21, 2016
3
4
5
Replies
82
Views
12K
Mar 25, 2020
04LB7yz
LLY:
Fuel pressure issue
Pwinland95
Mar 1, 2020
Replies
5
Views
606
Mar 3, 2020
KyleC4
K
LLY:
Injector Numero 7
lts1ow
Nov 21, 2016
Replies
13
Views
2K
Feb 17, 2020
mechman3
M
LLY:
AGAIN my buddies LLY
cdbright
Jan 23, 2020
Replies
4
Views
997
Jan 24, 2020
cdbright
LLY:
LLY turbo port and polish? Yellowchevy where are you!!! Lol
motoking_1990
Jan 16, 2020
Replies
12
Views
2K
Jan 24, 2020
yellowchevy
Y
J
LLY:
Intermittent cut out, Random codes, Ficm?
johnmay19
Dec 1, 2019
Replies
0
Views
687
Dec 1, 2019
johnmay19
J
LLY:
Traction Bars recommendation for heavy towing
NevadaLLY
Sep 23, 2019
2
Replies
37
Views
7K
Nov 14, 2019
NevadaLLY
LLY:
New Cp3 leaking
frankenstien
Oct 1, 2018
2
3
4
Replies
63
Views
12K
Sep 29, 2019
frankenstien
LLY:
Reg Cab lly project
NinjaMax
Nov 22, 2018
2
3
Replies
42
Views
5K
Sep 26, 2019
IdahoRene
I
S
LLY:
Need NEW Batteries.....Is Interstate any good...??
Sourdough
Aug 13, 2019
2
Replies
27
Views
5K
Sep 1, 2019
sneaky98gt
S
J
LLY:
2006 GMC 3500 LLY idle jumping
Jncrawford18
Jun 22, 2019
Replies
11
Views
1K
Jun 24, 2019
Jncrawford18
J
LLY:
6 codes during cold weather, few not sure about
frankenstien
Jan 22, 2017
Replies
18
Views
5K
Jun 19, 2019
frankenstien
LLY:
Questionable turbo play??
frankenstien
Sep 2, 2018
Replies
14
Views
2K
May 14, 2019
frankenstien
LLY:
Help Lly p0016
brokesmoker
Apr 24, 2018
2
Replies
31
Views
3K
May 2, 2019
Bdsankey
D
LLY:
LLY coolant weep from water pump area
DAKOTAKIDD
Apr 19, 2019
Replies
6
Views
608
Apr 19, 2019
DAKOTAKIDD
D
LLY:
Stuck open injector?
Henry95
Apr 8, 2019
Replies
8
Views
2K
Apr 8, 2019
Henry95
LLY:
Noise/vibe in reverse
DefiantArms
Mar 27, 2019
Replies
4
Views
873
Mar 27, 2019
DefiantArms
LLY:
Well there's your problem.....
duramaxnate
Feb 2, 2019
Replies
17
Views
2K
Feb 2, 2019
duramaxnate
C
LLY:
Fuel knock, need help diagnosing!
chandlergibson
Jan 27, 2019
Replies
3
Views
846
Jan 29, 2019
Bones775
R
LLY:
Weird noise
ronosf
Dec 18, 2018
Replies
8
Views
955
Dec 20, 2018
ronosf
R
B
LLY:
Throwing 202 203 2149
Brewmaster
Nov 14, 2018
Replies
0
Views
615
Nov 14, 2018
Brewmaster
B
LLY:
2500HD 3500HD Transfer Case Differences if any
raceghost
Oct 24, 2018
Replies
11
Views
3K
Oct 29, 2018
raceghost
LLY:
Precision gen2 6870 vs fleece 468/87/1.0
dirtymax36
Jun 15, 2018
Replies
14
Views
2K
Oct 27, 2018
dirtymax36
LLY:
Fuel system re-routing and fittings
frankenstien
Aug 21, 2018
Replies
3
Views
2K
Oct 9, 2018
frankenstien
LLY:
Frame difference
Henry95
Oct 6, 2018
Replies
3
Views
961
Oct 6, 2018
THEFERMANATOR
LLY:
P0670 affect EGR Monitor?
duramaxnate
Sep 25, 2018
Replies
1
Views
686
Sep 26, 2018
ChrisPerry
R
LLY:
Quick shock injector cleaner
RZRSharp
Apr 25, 2012
Replies
10
Views
6K
Sep 24, 2018
NC-smokinlmm
R
LLY:
Difference Between Axle Lube and Gear Lube?
RailwayRog
Sep 12, 2018
Replies
8
Views
1K
Sep 20, 2018
Novak
LLY:
Alternator plug
Henry95
Sep 19, 2018
Replies
2
Views
730
Sep 20, 2018
Henry95
LLY:
Losing VP between shifts?
20chevy04
Aug 22, 2018
Replies
1
Views
698
Aug 22, 2018
2004LB7
LLY:
05 Ex Cab-Short Box Rear Driveshaft Length
Bdsankey
Aug 18, 2018
Replies
7
Views
2K
Aug 20, 2018
Bdsankey
V
LLY:
Troubleshooting engine codes
vdubb78
Aug 18, 2018
Replies
1
Views
807
Aug 18, 2018
TheBac
F
LLY:
Truck wont start?
Foxtrott4646
Aug 8, 2018
Replies
5
Views
854
Aug 9, 2018
Trimox
T
M
LLY:
P0670
mechman3
Aug 7, 2018
Replies
2
Views
1K
Aug 7, 2018
mechman3
M
LLY:
LLY Got Hot!!!!!
bigedlittle
Jul 22, 2018
Replies
19
Views
2K
Jul 22, 2018
Burn Down
T
LLY:
Turbo Spins Up to High RPM
toobusy
Jun 3, 2018
Replies
5
Views
1K
Jun 11, 2018
Robby Avery
Poll
LLY:
FI ETR Billet S476/87/1.10 or S476/92/1.10
Bdsankey
Mar 21, 2018
Replies
12
Views
3K
Mar 22, 2018
Bdsankey
J
LLY:
fuel usage
jrJones44*
Dec 10, 2017
Replies
14
Views
2K
Mar 21, 2018
Bmax
LLY:
Front output shaft seal leak issue
frankenstien
Feb 17, 2018
Replies
17
Views
3K
Mar 4, 2018
frankenstien
LLY:
Coolant and oil issue
Parker_
Feb 19, 2018
Replies
4
Views
1K
Feb 19, 2018
Dozerboy
1
2
3
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Duramax 6.6 Technical
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