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Duramax 6.6 Technical
Duramax Hard Parts
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2017 intermittent rough idle
Bbuchanan11
Friday at 8:36 AM
Replies
11
Views
159
Monday at 10:31 PM
Chevy1925
J
No Throttle No codes
jkolewski
Sep 26, 2023
Replies
6
Views
93
Sep 27, 2023
kidturbo
2024 Duramax issues?
NC-smokinlmm
Jul 23, 2023
2
Replies
25
Views
2K
Sep 27, 2023
lutzjk913
L5P performance builds (beyond just a built trans)
Chevy1925
May 6, 2020
2
Replies
31
Views
5K
Sep 21, 2023
autorepair1
A
CEL running rough
countrycorey
Sep 4, 2023
Replies
8
Views
198
Sep 16, 2023
77cruiser
7
R
L5P hangs up at WOT
rossbaker13
Aug 6, 2023
Replies
3
Views
165
Aug 6, 2023
Chevy1925
C
2019 L5P- Needing Turbo Actuator
chanzilla808
Jul 31, 2023
Replies
2
Views
144
Jul 31, 2023
chanzilla808
C
Horn beeps and left signal light blinks
Gcappy56
Jul 26, 2023
Replies
1
Views
181
Jul 26, 2023
TheBac
L5P Weakest Links
kidturbo
Jun 3, 2023
3
4
5
Replies
84
Views
2K
Jun 19, 2023
kidturbo
H
Another P20EE Question
Hazman
Jun 11, 2023
Replies
7
Views
147
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
314
May 2, 2023
mtxcaleb
Please help! coolant leak!
Pcfl.Vlly.DMaxxed
Jan 30, 2023
Replies
4
Views
321
May 1, 2023
mtxcaleb
J
Emissions
jrfoust1
Apr 29, 2023
Replies
4
Views
226
Apr 29, 2023
2004LB7
E
Difference in a 17-19 and 2020+ engine?
eric9911
Apr 21, 2023
2
Replies
25
Views
652
Apr 24, 2023
Nate’s Dmax
Def pump replaced same issue
mtxcaleb
Apr 18, 2023
Replies
2
Views
193
Apr 20, 2023
mtxcaleb
First time L5P owner. Code P0205
762Goon
Mar 19, 2023
Replies
8
Views
540
Mar 20, 2023
762Goon
R
L5P Troubles, please help!
Rreeck43
Mar 19, 2023
Replies
6
Views
2K
Mar 19, 2023
TheBac
D
2017 L5P vs 2020 L5P
DaneF
Mar 9, 2023
Replies
4
Views
494
Mar 14, 2023
Nate’s Dmax
Question
countrycorey
Feb 22, 2023
Replies
7
Views
664
Mar 2, 2023
countrycorey
R
ECM issue
Rfree
Feb 19, 2023
Replies
4
Views
244
Feb 20, 2023
08lmm72mm
0
A
Low Coolant Warning
Alaska_av8r
Nov 10, 2022
Replies
9
Views
622
Jan 29, 2023
DIESELMAFIAPER.LB7
Blow off valve?
Dm23
Jan 20, 2023
Replies
1
Views
317
Jan 20, 2023
MAXX IT OUT
Electrical issues
Jbendris
Nov 20, 2022
Replies
3
Views
308
Nov 21, 2022
Ron Nielson
R
S
#2 cylinder fuel injector blow-by
sparkygmc7890
Nov 10, 2022
Replies
11
Views
351
Nov 12, 2022
sparkygmc7890
S
Problems attempting injector cleaning
garyrosa123
Oct 18, 2022
Replies
12
Views
731
Nov 3, 2022
garyrosa123
Venturi catch can setup
Chevy1925
Dec 28, 2019
2
3
Replies
42
Views
8K
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
444
Oct 18, 2022
asirico22
A
B
158 MPH Max speed?
bradendraper
Sep 9, 2022
Replies
1
Views
764
Sep 9, 2022
08lmm72mm
0
MAF sensor and mating connector part numbers
AugieM
Aug 7, 2022
Replies
3
Views
432
Aug 10, 2022
Ron Nielson
R
N
Nox Sensor & relearn
notrosh
Jul 20, 2022
Replies
2
Views
895
Jul 20, 2022
notrosh
N
New member injector issue
coppolac
May 3, 2022
Replies
4
Views
492
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
C
L5P with 100,000 miles and a stutter or slip at 1500 RPM
Chrisg0731
Mar 21, 2022
Replies
16
Views
2K
Mar 27, 2022
08lmm72mm
0
New 2022 3500HD High Idle Switch Option
fgregory
Mar 7, 2022
Replies
4
Views
3K
Mar 9, 2022
fgregory
M
Digital Assist Steering Re-Program?
mikemillersamnet
Mar 6, 2022
Replies
3
Views
459
Mar 7, 2022
mikemillersamnet
M
2021 L5P Dually
Muff
Oct 7, 2021
Replies
2
Views
600
Oct 9, 2021
Muff
Looking to swap white 15-19 LBDW for LBSW
D-MAX Mafia
Sep 22, 2021
Replies
5
Views
563
Oct 3, 2021
Nate’s Dmax
K
P228B Please Help / Advice
Kydiesel2017
Sep 15, 2021
Replies
1
Views
565
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
974
May 16, 2021
snowman22
iDash not displaying option for transmission temp in menu
pinkmist
Feb 28, 2021
Replies
2
Views
720
Apr 18, 2021
FreedomOne
F
K
idle above 800 ... a pain in traffic
kjensen
Apr 15, 2021
Replies
4
Views
850
Apr 16, 2021
Lifted L5P
C
2019 D-Max Loud Ticking
CH-Diesel
Jan 27, 2021
Replies
16
Views
2K
Mar 29, 2021
tylerdurden
T
C
2020 l5p duramax knock at idle cold, worse hot
Capt. Wackencracker
Feb 22, 2020
2
3
Replies
46
Views
15K
Mar 29, 2021
tylerdurden
T
L5p rattle on start up
Henry95
Mar 10, 2021
Replies
2
Views
761
Mar 11, 2021
Henry95
J
Check engine light on after first fuel fill up
JCC N. Dakota
Feb 19, 2021
Replies
2
Views
626
Mar 6, 2021
Blackjack
2020 Denali with derringer threw fuel pressure code and limp
dracing70
Feb 19, 2021
Replies
15
Views
1K
Feb 26, 2021
LBZ
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