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
Fastshovelhead
COOLANT IN AIRBOX WHILE TOWING 5TH WHEEL : TRK TOOK A SH!$
Replies
29
Views
1K
Fastshovelhead
Fastshovelhead
ZeroGravity58
S485 vs S488
Replies
3
Views
616
ZeroGravity58
ZeroGravity58
S
P01F0 code related to head gasket??
Replies
4
Views
2K
Soxfan68
S
MAXX IT OUT
Info: .83 AR for 73mm turbine wheel
Replies
27
Views
5K
DuramaxRamRod
DuramaxRamRod
EDP
  • Poll
Broken Crankshaft Count?
Replies
1K
Views
284K
KamikazeGandhi
K
D
Screeching Noise (with video link and audio)
Replies
8
Views
505
Dozerboy
Dozerboy
Mike_S
Question: Who on here has been unhappy with results using Amsoil?
Replies
125
Views
32K
Mickey D
Mickey D
S
Aftermarket Fuel Filter System Question
Replies
4
Views
803
Mickey D
Mickey D
A
2001 lb7 duramax fuel issues.
Replies
50
Views
1K
08lmm72mm
0
C
Oil filters
Replies
34
Views
3K
2004LB7
2004LB7
G
6.6L coolant leak
Replies
5
Views
637
Bdsankey
Bdsankey
M
Cranks will start but dies
Replies
7
Views
332
LBZ
LBZ
M
Oil and Filters
Replies
9
Views
998
Mickey D
Mickey D
K
Hot Shot Secret vs Optilube
Replies
44
Views
7K
Mickey D
Mickey D
DuramaxRamRod
S400 87mm Turbine Wheels
Replies
0
Views
275
DuramaxRamRod
DuramaxRamRod
S
LB7 Alternator Options in 2023
Replies
12
Views
1K
sneaky98gt
S
762Goon
First time L5P owner. Code P0205
Replies
8
Views
1K
762Goon
762Goon
R
L5P Troubles, please help!
Replies
6
Views
6K
TheBac
TheBac
shakenfake
P2563 and P003A
Replies
25
Views
2K
shakenfake
shakenfake
M
LB7 Rebuild
Replies
20
Views
2K
TheBac
TheBac
B
LMM Cranks but won’t start
Replies
1
Views
421
2004LB7
2004LB7
T
Best engine mounts?
Replies
15
Views
1K
Chevy1925
Chevy1925
Wyatt.bilodeau
Bad transmission sensor?
Replies
6
Views
481
Wyatt.bilodeau
Wyatt.bilodeau
D
2017 L5P vs 2020 L5P
Replies
4
Views
1K
Nate’s Dmax
Nate’s Dmax
duramax hd
LB7: CP3 Freeze plug blow out
Replies
7
Views
5K
Bdsankey
Bdsankey
ZeroGravity58
Turbo setup to make 1000hp
Replies
15
Views
1K
Chevy1925
Chevy1925
Wyatt.bilodeau
Lbz heads on lly
Replies
16
Views
740
1FastBrick
1FastBrick
W
Fuel Pressure Issues
Replies
11
Views
843
Chevy1925
Chevy1925
03LB7 09LMM
HELP!!! TRUCK ONLY RUNS ON ALL 8 WITH VALVE COVER OFF
Replies
37
Views
2K
Bdsankey
Bdsankey
D
08 lmm no fuel pressure
Replies
2
Views
377
2004LB7
2004LB7
countrycorey
Question
Replies
7
Views
2K
countrycorey
countrycorey
T
Trying to quiet truck down and get rid of exhaust drone 4" exhaust
Replies
5
Views
682
turbovan
T
O
Head Gasket Job LMM
Replies
11
Views
796
turbovan
T
B
2012 K3500 LML Speed Reduced Reset Issue
Replies
6
Views
545
Bernie b
B
T
Late LLY, is it a LBZ question.
Replies
7
Views
828
turbovan
T
R
Cruise control works when it want's to...so annoying
Replies
4
Views
396
JoshH
JoshH
LBZ
P088 High Fuel Pressure Code
Replies
36
Views
1K
LBZ
LBZ
J
Starter problem? Maybe help…
Replies
8
Views
513
PureHybrid
PureHybrid
R
ECM issue
Replies
4
Views
447
08lmm72mm
0
2015 lml 3500 dually
Limp mode
Replies
33
Views
2K
2004LB7
2004LB7
L
Broken ground on bulkhead
Replies
4
Views
316
DAVe3283
DAVe3283
L
2 blowby tubes? Help!
Replies
1
Views
304
DAVe3283
DAVe3283
B
Mysterious oil leak?
Replies
9
Views
435
08lmm72mm
0
R
P160C Chevrolet Engine Calibration Information Not Programmed - GPCM
Replies
2
Views
521
RazzRJB
R
M
Intake Issue
Replies
6
Views
433
MaxComp88B
M
N
Help!
Replies
3
Views
283
Bdsankey
Bdsankey
shakenfake
Turbo Rebuild Kit
Replies
15
Views
1K
Chevy1925
Chevy1925
M
S and B or HSP
Replies
14
Views
614
Dozerboy
Dozerboy
P
Leaking injector or tube?
Replies
9
Views
426
Peter K
P
M
no ecm/tcm communication
Replies
13
Views
2K
2004LB7
2004LB7
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