Duramax Hard Parts

Dmax Performance Parts and related discussions.

LB7 New

2.2K
31.9K
Threads
2.2K
Messages
31.9K
2004LB7
2003 no start condition

LLY New

1.3K
17.3K
Threads
1.3K
Messages
17.3K
None

LBZ New

1.2K
14.3K
Threads
1.2K
Messages
14.3K
1FastBrick
Truck wont rev much past 2k rpm no codes

LMM New

767
11.2K
Threads
767
Messages
11.2K
N2BRK
PLEASE HELP!! 07.5 LMM No shift indicator, dome lights, power locks & windows, NO CRANK NO START

LML New

652
8.4K
Threads
652
Messages
8.4K
1FastBrick
Got a couple of cylinder contribution codes

L5P New

124
3.7K
Threads
124
Messages
3.7K
Nate’s Dmax
L5P will barely start, then die Please Help

Transfer Case / Axles / Driveshafts Tech New

294
3.5K
Threads
294
Messages
3.5K
TheBac
No 4WD

Van

18
312
Threads
18
Messages
312
M
LGH (detuned LML in a van) Engine Shuts off at full throttle

Part #'s

396
2.3K
Threads
396
Messages
2.3K
K
Crossmember part # or replacement

Turbo Talk

"Nitrous is nice, but it's best to be Blown"
1.9K
43.7K
Threads
1.9K
Messages
43.7K
malibu795
WWYD? Turbo time

General Fuel System & Exhaust Questions New

373
7.7K
Threads
373
Messages
7.7K
2004LB7
dual tank woes

Fluids and Maintenance

652
10.7K
Threads
652
Messages
10.7K
OleBlackyLBZ
Starfire Fluid Built Trans

The Pharmacy

Nitrous, Propane, Meth, oxidizers
172
3.2K
Threads
172
Messages
3.2K
Baking83
Nitrous
N2BRK
2002 a/c et al
Replies
12
Views
453
N2BRK
N2BRK
2
2012 Silverado Duramax intermittently won't crank
Replies
5
Views
331
2012 DMAX
2
G
LB7 Blowing Smoke under heavy acceleration
Replies
12
Views
1K
jlawles2
J
Dm23
Valve cover gasket replacement price???
Replies
2
Views
520
Dm23
Dm23
M
LMM Problem
Replies
4
Views
521
MaxComp88B
M
Bbuchanan11
2017 intermittent rough idle
Replies
11
Views
610
Chevy1925
Chevy1925
Harshman
Turbo down pipe
Replies
8
Views
495
Harshman
Harshman
juddski88
  • Poll
2.5 VNT Turbo Options 2023
Replies
20
Views
2K
N_FL_LBZ
N
cdbright
my buddies LLY with CP3 issue
Replies
15
Views
2K
376zulu
3
715Hunter
New Engine build strange sound
Replies
6
Views
367
JoshH
JoshH
J
No Throttle No codes
Replies
6
Views
699
kidturbo
kidturbo
BraydenVan05LLY
Battery not charging, service air bag, service brake system, only 800rpms WOT, engine oil life stays at 5%, fuel filter life no longer shown.
Replies
14
Views
454
1FastBrick
1FastBrick
Chevy1925
L5P performance builds (beyond just a built trans)
Replies
31
Views
7K
autorepair1
A
LBZ
Oh bother…..
Replies
17
Views
997
LBZ
LBZ
F
2008 gmc 3500hd P0652, P0117, P0462, and P0522
Replies
12
Views
699
1FastBrick
1FastBrick
S
Glow plug indicator on for over 15 seconds, MIL illuminates, no DTC code reports
Replies
2
Views
292
1FastBrick
1FastBrick
countrycorey
CEL running rough
Replies
8
Views
518
77cruiser
7
Trent.slaugh
Metal in fuel pump
Replies
5
Views
494
Bdsankey
Bdsankey
A
Roughy idle and zero power
Replies
6
Views
335
DAVe3283
DAVe3283
T
How to know if my EGR is deleted or not?
Replies
18
Views
1K
Stroked06Goat
Stroked06Goat
R
07.5 lmm 6.6 2500hd 4x4 crew cab
Replies
2
Views
242
2004LB7
2004LB7
I
which exhaust manifold to replace on LBZ
Replies
46
Views
5K
LS1K5
L
AugieM
10L1000 Fluid and filter
Replies
2
Views
331
AugieM
AugieM
TROJAN366
Banks vs BD intercooler
Replies
52
Views
6K
rcr1978
rcr1978
Dm23
LML FPR
Replies
1
Views
382
Ron Nielson
R
W
Wait to start light?
Replies
6
Views
498
2004LB7
2004LB7
LB7_01DURAMAX
Fuel in oil
Replies
20
Views
1K
LB7_01DURAMAX
LB7_01DURAMAX
D
Thumping noise coming from intake
Replies
21
Views
3K
1FastBrick
1FastBrick
rfletes79
Dual Fueler issues, HELP!!
Replies
13
Views
800
Bdsankey
Bdsankey
T
Difficult to diagnose. 2002 2500 several problems.
Replies
4
Views
396
Tdubnrp
T
DieselDemon18
Fleece Cupless heads reviews/updates/opinions etc?
Replies
3
Views
593
DAVe3283
DAVe3283
bogema
03 LB7 crank no start. No coms with ficm
Replies
26
Views
1K
bogema
bogema
ikeG
CP4 Disasterz
Replies
9
Views
581
JoshH
JoshH
R
Lmm Chassis Swappe LML donor
Replies
0
Views
238
r.danny91
R
T
LBZ bad injector?
Replies
4
Views
404
Tucker129
T
D
Heavy towing upgrades?
Replies
52
Views
2K
Bdsankey
Bdsankey
02ilduramax
coolant leak
Replies
2
Views
311
02ilduramax
02ilduramax
O
2006 LBZ, no power on Camshaft position sensor signal wire or ECM pin 56
Replies
4
Views
602
2004LB7
2004LB7
BLACKMAX1
2007 LMM Front Diff Fill Plug P/N
Replies
4
Views
357
1FastBrick
1FastBrick
hublersminingequipment@gm
P0335 Crank Sensor
Replies
9
Views
774
Ron Nielson
R
H
MAF sensor
Replies
1
Views
328
2004LB7
2004LB7
R
L5P hangs up at WOT
Replies
3
Views
700
Chevy1925
Chevy1925
K
Help!
Replies
4
Views
516
Kristy32
K
THEFERMANATOR
P0500
Replies
5
Views
4K
TheBac
TheBac
C
Map sensor reading low
Replies
23
Views
872
2004LB7
2004LB7
K
P0102 Wiring good, replaced MAF, still reading 0.00 g/s
Replies
17
Views
3K
Chevy1925
Chevy1925
D
bad or going bad injectors?? im a noob.
Replies
28
Views
944
David_1025
D
L
Loss of power ,engine over heat , oil in coolant
Replies
0
Views
308
lookoutjg
L
W
Remote oil cooler & bypass filter?
Replies
18
Views
1K
wydopenLb7
W
C
2019 L5P- Needing Turbo Actuator
Replies
2
Views
668
chanzilla808
C
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