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Duramax 6.6 Technical
Duramax Hard Parts
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2024 Duramax issues?
NC-smokinlmm
Jul 23, 2023
2
3
4
Replies
72
Views
7K
Feb 8, 2024
Leadfoot
B
158 MPH Max speed?
bradendraper
Sep 9, 2022
Replies
6
Views
1K
Feb 7, 2024
kaylabryn
K
OBDII "Not Ready" for SMOG TEST
bsmall2800
Feb 2, 2024
Replies
6
Views
112
Feb 2, 2024
Ron Nielson
R
M
Knocking noise
mississippiray
Nov 10, 2023
Replies
13
Views
461
Jan 7, 2024
mississippiray
M
B
2018 l5p high county U18A2 help
blairsperformancellc
Jan 2, 2024
2
Replies
23
Views
536
Jan 7, 2024
kidturbo
M
Dual Battery Charging
Malosi
Dec 11, 2023
Replies
5
Views
238
Dec 13, 2023
NC-smokinlmm
C
L5P with 100,000 miles and a stutter or slip at 1500 RPM
Chrisg0731
Mar 21, 2022
Replies
18
Views
3K
Nov 20, 2023
Chevy1925
2017 intermittent rough idle
Bbuchanan11
Sep 29, 2023
Replies
11
Views
327
Oct 2, 2023
Chevy1925
J
No Throttle No codes
jkolewski
Sep 26, 2023
Replies
6
Views
255
Sep 27, 2023
kidturbo
L5P performance builds (beyond just a built trans)
Chevy1925
May 6, 2020
2
Replies
31
Views
6K
Sep 21, 2023
autorepair1
A
CEL running rough
countrycorey
Sep 4, 2023
Replies
8
Views
295
Sep 16, 2023
77cruiser
7
R
L5P hangs up at WOT
rossbaker13
Aug 6, 2023
Replies
3
Views
372
Aug 6, 2023
Chevy1925
C
2019 L5P- Needing Turbo Actuator
chanzilla808
Jul 31, 2023
Replies
2
Views
261
Jul 31, 2023
chanzilla808
C
Horn beeps and left signal light blinks
Gcappy56
Jul 26, 2023
Replies
1
Views
325
Jul 26, 2023
TheBac
L5P Weakest Links
kidturbo
Jun 3, 2023
3
4
5
Replies
84
Views
3K
Jun 19, 2023
kidturbo
H
Another P20EE Question
Hazman
Jun 11, 2023
Replies
7
Views
276
Jun 11, 2023
Hazman
H
L5P INJECTOR QUESTION
Dm23
Feb 16, 2022
Replies
12
Views
3K
May 30, 2023
Big_Poppa
B
Scr doc dpf delete
mtxcaleb
May 1, 2023
Replies
2
Views
536
May 2, 2023
mtxcaleb
Please help! coolant leak!
Pcfl.Vlly.DMaxxed
Jan 30, 2023
Replies
4
Views
427
May 1, 2023
mtxcaleb
J
Emissions
jrfoust1
Apr 29, 2023
Replies
4
Views
363
Apr 29, 2023
2004LB7
E
Difference in a 17-19 and 2020+ engine?
eric9911
Apr 21, 2023
2
Replies
25
Views
995
Apr 24, 2023
Nate’s Dmax
Def pump replaced same issue
mtxcaleb
Apr 18, 2023
Replies
2
Views
314
Apr 20, 2023
mtxcaleb
First time L5P owner. Code P0205
762Goon
Mar 19, 2023
Replies
8
Views
875
Mar 20, 2023
762Goon
R
L5P Troubles, please help!
Rreeck43
Mar 19, 2023
Replies
6
Views
3K
Mar 19, 2023
TheBac
D
2017 L5P vs 2020 L5P
DaneF
Mar 9, 2023
Replies
4
Views
741
Mar 14, 2023
Nate’s Dmax
Question
countrycorey
Feb 22, 2023
Replies
7
Views
980
Mar 2, 2023
countrycorey
R
ECM issue
Rfree
Feb 19, 2023
Replies
4
Views
323
Feb 20, 2023
08lmm72mm
0
A
Low Coolant Warning
Alaska_av8r
Nov 10, 2022
Replies
9
Views
736
Jan 29, 2023
DIESELMAFIAPER.LB7
Blow off valve?
Dm23
Jan 20, 2023
Replies
1
Views
714
Jan 20, 2023
MAXX IT OUT
Electrical issues
Jbendris
Nov 20, 2022
Replies
3
Views
408
Nov 21, 2022
Ron Nielson
R
S
#2 cylinder fuel injector blow-by
sparkygmc7890
Nov 10, 2022
Replies
11
Views
570
Nov 12, 2022
sparkygmc7890
S
Problems attempting injector cleaning
garyrosa123
Oct 18, 2022
Replies
12
Views
886
Nov 3, 2022
garyrosa123
Venturi catch can setup
Chevy1925
Dec 28, 2019
2
3
Replies
42
Views
9K
Oct 21, 2022
hntngkd
M
125k mile turbo junk?
mamumtsllc
May 2, 2021
Replies
1
Views
1K
Oct 20, 2022
jimmy.romero
J
A
Increase Fuel Economy and Performance
asirico22
Oct 17, 2022
Replies
4
Views
534
Oct 18, 2022
asirico22
A
MAF sensor and mating connector part numbers
AugieM
Aug 7, 2022
Replies
3
Views
598
Aug 10, 2022
Ron Nielson
R
N
Nox Sensor & relearn
notrosh
Jul 20, 2022
Replies
2
Views
2K
Jul 20, 2022
notrosh
N
New member injector issue
coppolac
May 3, 2022
Replies
4
Views
607
May 3, 2022
Chevy1925
L5P fuel system upgrade
Unhingedaz
May 1, 2022
Replies
6
Views
1K
May 1, 2022
Unhingedaz
GM set to buy back some trucks.....
Dozerboy
Apr 16, 2022
Replies
4
Views
3K
Apr 18, 2022
Dean E
New 2022 3500HD High Idle Switch Option
fgregory
Mar 7, 2022
Replies
4
Views
4K
Mar 9, 2022
fgregory
M
Digital Assist Steering Re-Program?
mikemillersamnet
Mar 6, 2022
Replies
3
Views
563
Mar 7, 2022
mikemillersamnet
M
2021 L5P Dually
Muff
Oct 7, 2021
Replies
2
Views
653
Oct 9, 2021
Muff
Looking to swap white 15-19 LBDW for LBSW
D-MAX Mafia
Sep 22, 2021
Replies
5
Views
630
Oct 3, 2021
Nate’s Dmax
K
P228B Please Help / Advice
Kydiesel2017
Sep 15, 2021
Replies
1
Views
757
Sep 16, 2021
Ron Nielson
R
T
New owner need some tips
TheNewGuy78
Jun 1, 2021
Replies
13
Views
1K
Jun 4, 2021
TheNewGuy78
T
2017 L5p
Jwatsonlml
May 16, 2021
Replies
3
Views
1K
May 16, 2021
snowman22
iDash not displaying option for transmission temp in menu
pinkmist
Feb 28, 2021
Replies
2
Views
902
Apr 18, 2021
FreedomOne
F
K
idle above 800 ... a pain in traffic
kjensen
Apr 15, 2021
Replies
4
Views
1K
Apr 16, 2021
Lifted L5P
C
2019 D-Max Loud Ticking
CH-Diesel
Jan 27, 2021
Replies
16
Views
3K
Mar 29, 2021
tylerdurden
T
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