L5P

Bbuchanan11
2017 intermittent rough idle
Replies
11
Views
159
Chevy1925
Chevy1925
J
No Throttle No codes
Replies
6
Views
93
kidturbo
kidturbo
NC-smokinlmm
2024 Duramax issues?
Replies
25
Views
2K
lutzjk913
lutzjk913
Chevy1925
L5P performance builds (beyond just a built trans)
Replies
31
Views
5K
autorepair1
A
countrycorey
CEL running rough
Replies
8
Views
198
77cruiser
7
R
L5P hangs up at WOT
Replies
3
Views
165
Chevy1925
Chevy1925
C
2019 L5P- Needing Turbo Actuator
Replies
2
Views
144
chanzilla808
C
Gcappy56
Horn beeps and left signal light blinks
Replies
1
Views
181
TheBac
TheBac
kidturbo
L5P Weakest Links
Replies
84
Views
2K
kidturbo
kidturbo
H
Another P20EE Question
Replies
7
Views
147
Hazman
H
Dm23
L5P INJECTOR QUESTION
Replies
12
Views
3K
Big_Poppa
B
mtxcaleb
Scr doc dpf delete
Replies
2
Views
314
mtxcaleb
mtxcaleb
Pcfl.Vlly.DMaxxed
Please help! coolant leak!
Replies
4
Views
321
mtxcaleb
mtxcaleb
J
Emissions
Replies
4
Views
226
2004LB7
2004LB7
E
Difference in a 17-19 and 2020+ engine?
Replies
25
Views
652
Nate’s Dmax
Nate’s Dmax
mtxcaleb
Def pump replaced same issue
Replies
2
Views
193
mtxcaleb
mtxcaleb
762Goon
First time L5P owner. Code P0205
Replies
8
Views
540
762Goon
762Goon
R
L5P Troubles, please help!
Replies
6
Views
2K
TheBac
TheBac
D
2017 L5P vs 2020 L5P
Replies
4
Views
494
Nate’s Dmax
Nate’s Dmax
countrycorey
Question
Replies
7
Views
664
countrycorey
countrycorey
R
ECM issue
Replies
4
Views
244
08lmm72mm
0
A
Low Coolant Warning
Replies
9
Views
622
DIESELMAFIAPER.LB7
DIESELMAFIAPER.LB7
Dm23
Blow off valve?
Replies
1
Views
317
MAXX IT OUT
MAXX IT OUT
Jbendris
Electrical issues
Replies
3
Views
308
Ron Nielson
R
S
#2 cylinder fuel injector blow-by
Replies
11
Views
351
sparkygmc7890
S
garyrosa123
Problems attempting injector cleaning
Replies
12
Views
731
garyrosa123
garyrosa123
Chevy1925
Venturi catch can setup
Replies
42
Views
8K
hntngkd
hntngkd
M
125k mile turbo junk?
Replies
1
Views
1K
jimmy.romero
J
A
Increase Fuel Economy and Performance
Replies
4
Views
444
asirico22
A
B
158 MPH Max speed?
Replies
1
Views
764
08lmm72mm
0
AugieM
MAF sensor and mating connector part numbers
Replies
3
Views
432
Ron Nielson
R
N
Nox Sensor & relearn
Replies
2
Views
895
notrosh
N
coppolac
New member injector issue
Replies
4
Views
492
Chevy1925
Chevy1925
Unhingedaz
L5P fuel system upgrade
Replies
6
Views
1K
Unhingedaz
Unhingedaz
Dozerboy
GM set to buy back some trucks.....
Replies
4
Views
3K
Dean E
Dean E
C
L5P with 100,000 miles and a stutter or slip at 1500 RPM
Replies
16
Views
2K
08lmm72mm
0
fgregory
New 2022 3500HD High Idle Switch Option
Replies
4
Views
3K
fgregory
fgregory
M
Digital Assist Steering Re-Program?
Replies
3
Views
459
mikemillersamnet
M
Muff
2021 L5P Dually
Replies
2
Views
600
Muff
Muff
D-MAX Mafia
Looking to swap white 15-19 LBDW for LBSW
Replies
5
Views
563
Nate’s Dmax
Nate’s Dmax
K
P228B Please Help / Advice
Replies
1
Views
565
Ron Nielson
R
T
New owner need some tips
Replies
13
Views
1K
TheNewGuy78
T
Jwatsonlml
2017 L5p
Replies
3
Views
974
snowman22
snowman22
pinkmist
iDash not displaying option for transmission temp in menu
Replies
2
Views
720
FreedomOne
F
K
idle above 800 ... a pain in traffic
Replies
4
Views
850
Lifted L5P
Lifted L5P
C
2019 D-Max Loud Ticking
Replies
16
Views
2K
tylerdurden
T
C
2020 l5p duramax knock at idle cold, worse hot
Replies
46
Views
15K
tylerdurden
T
Henry95
L5p rattle on start up
Replies
2
Views
761
Henry95
Henry95
J
Check engine light on after first fuel fill up
Replies
2
Views
626
Blackjack
Blackjack
dracing70
2020 Denali with derringer threw fuel pressure code and limp
Replies
15
Views
1K
LBZ
LBZ
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