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
A
08 duramax weightloss
Replies
5
Views
431
Bdsankey
Bdsankey
R
Head gasket or engine
Replies
1
Views
236
2004LB7
2004LB7
D
Boost leak/injector questions
Replies
11
Views
448
TheBac
TheBac
Gcappy56
Horn beeps and left signal light blinks
Replies
1
Views
500
TheBac
TheBac
Supermoto68
2009 GMC HD3500 loss of power issue after full throotle
Replies
3
Views
239
NC-smokinlmm
NC-smokinlmm
Dm23
Boost sensor question
Replies
15
Views
655
2004LB7
2004LB7
BigTex1968
Rebuild????
Replies
24
Views
1K
Bdsankey
Bdsankey
R
2002 LB7 powerloss new guy here
Replies
9
Views
329
gmduramax
gmduramax
C
06 lly gas pedal not responding correct
Replies
6
Views
315
TheBac
TheBac
Wyatt.bilodeau
Speed sensor issue?
Replies
10
Views
814
Jmickel
J
ClappedDmax
Help please, dropped driveshaft
Replies
14
Views
761
Bdsankey
Bdsankey
A
Lift pump and fuel filter delete
Replies
18
Views
2K
Dean E
Dean E
2015 lml 3500 dually
2015 duramax lml
Replies
24
Views
976
2015 lml 3500 dually
2015 lml 3500 dually
B
Is my ECM bad? No VSS, No AC, I've got issues.
Replies
3
Views
548
BigIkeDiesel
B
Dixie Dragon
Transfer case
Replies
16
Views
445
2004LB7
2004LB7
rcashman
05 LLY communication issues
Replies
24
Views
2K
rcashman
rcashman
Braden ball
2004 lb7 duramax
Replies
9
Views
620
Stroked06Goat
Stroked06Goat
Chevyhead3
LBZ won't hold rail pressure at idle
Replies
26
Views
1K
juddski88
juddski88
P
LBZ Problem Child
Replies
5
Views
573
Plugman
P
H
LLY loses fuel rail pressure after it warms up
Replies
3
Views
398
Bdsankey
Bdsankey
quinton
LLY: Electric fans
Replies
39
Views
12K
Timelock
T
Dozerboy
AC issues
Replies
13
Views
652
wydopenLb7
W
J
Danville Stg2r Drive Pressure vs RPM's
Replies
10
Views
670
ikeG
ikeG
LSxBakakos
LB7: Dual fueler blues
Replies
9
Views
486
wydopenLb7
W
PDWolff
Just did headgaskets and studded but chasing issues
Replies
9
Views
456
PDWolff
PDWolff
JAG91761
Engine Codes while towing Heavy.
Replies
10
Views
708
JAG91761
JAG91761
gmduramax
Is a big single turbo right for you
Replies
11
Views
2K
Bdsankey
Bdsankey
kidturbo
L5P Weakest Links
Replies
84
Views
5K
kidturbo
kidturbo
J
Clunking in 4wd Forward or reverse...about every 5 feet (lb7)
Replies
17
Views
557
Ron Nielson
R
R
Erratic Electrical Truck - Don't Know What to Make of IT
Replies
15
Views
507
Ron Nielson
R
S
2005 Silverado Duramax LLY Crank No Start, please help
Replies
22
Views
4K
GabeGrindstaff
G
A
2015 Chevy Work Truck Upgrades
Replies
9
Views
393
2004LB7
2004LB7
B
Upper oil pan gasket.
Replies
2
Views
355
bigmilkbone
B
S
PCV Drainback Tube
Replies
1
Views
362
JoshH
JoshH
N
2005 lly
Replies
56
Views
2K
nitrochad
N
bsieja
Throttle Pedal Problem
Replies
1
Views
345
2004LB7
2004LB7
B
wrench and gear light
Replies
2
Views
851
PureHybrid
PureHybrid
Dozerboy
Starter is grinding intermittently.
Replies
3
Views
741
juddski88
juddski88
T
2007.5 Chevy 2500 4x4 6.6 LMM Duramax 100,000 miles. More problems.....
Replies
15
Views
871
Chevy1925
Chevy1925
DefiantArms
Ways to do an oil system flush
Replies
10
Views
708
clrussell
clrussell
M
Duramax 4WD Issue
Replies
12
Views
658
JoshH
JoshH
T
Lml no power
Replies
46
Views
2K
tbj
T
W
LB7 stock turbo longevity and upgrade options?
Replies
12
Views
2K
turbovan
T
Fastshovelhead
TrakMotive XTENDED Travel CV Axles GM-8026XTT 2500HD
Replies
26
Views
3K
gmc502
gmc502
DefiantArms
HSP Y Bridge oring
Replies
0
Views
292
DefiantArms
DefiantArms
GregJ77
Crank no start P2146
Replies
20
Views
2K
2004LB7
2004LB7
G
Bad ficm
Replies
6
Views
457
2004LB7
2004LB7
G
LLY Rear Engine Coolant Leak
Replies
5
Views
770
Dozerboy
Dozerboy
770JOHNNYW
lmm p0102
Replies
11
Views
3K
skyboy062
S
S
2003 6.6 Silverado H.D Duramax code PO802
Replies
3
Views
663
TheBac
TheBac
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