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Chevy / GMC Duramax 2017+ L5P Forums
2017-19 GM T-K2 Platform Powertrain
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D
Sticky
Definitive L5P Regen thread
duecedriver
Oct 26, 2020
8
9
10
187
65K
Feb 29, 2024
by
Mutt
DPF soot levels
JayLLY
7d ago
34
1K
36m ago
by
bullfrog1972
C
L5P Emissions Monitors- How to make "Ready"
Citori1
Oct 7, 2020
9
9K
5d ago
by
Gozer
K
Broken Exhaust Manifold bolts
kansasfarmer1
Mar 8, 2024
6
193
Mar 9, 2024
by
Nate Dmax
High buildup in MAP sensor cause?
cfell
Feb 29, 2024
5
277
Mar 4, 2024
by
Piper One
2018 3500HD - P129F code, left stranded.
CODE4
Jul 23, 2020
2
40
31K
Mar 2, 2024
by
Jsharp123
S
The dreaded P1050 code and help needed
Springerdad
Dec 13, 2023
6
961
Mar 1, 2024
by
JAY RUDES
P129F Code 2019 Chevy 5500
richnixon86
Jan 14, 2023
6
4K
Mar 1, 2024
by
millerrhondaa
LML vs L5P fuel usage.
audiomixer
May 19, 2018
21
30K
Feb 29, 2024
by
dhmclain1987
B
P0087, crank no start
Brendon f
Feb 24, 2024
2
145
Feb 24, 2024
by
Brendon f
B
High Pitch Whine Like a Dental Drill
brutodd
Apr 21, 2018
2
33
43K
Feb 18, 2024
by
Dgoodman
R
Check emission system
Ryanc1029
Feb 14, 2024
3
281
Feb 15, 2024
by
Ron Nielson
L
L5P RPM surge during decel
lil_schmitty
Jul 30, 2019
2
30
21K
Feb 13, 2024
by
JAE
L5P losing oil prime.
Squinty
Feb 12, 2023
25
5K
Feb 10, 2024
by
midnightz71
Low oil pressure shut engine off
tiaracapri0
Nov 12, 2023
9
926
Feb 10, 2024
by
midnightz71
M
2018 L5P 3500 stumbles
mholman
May 3, 2018
2
45
41K
Feb 7, 2024
by
Kalispell duramax
P228B DTC; dealer says "fuel gelled up"
jdwarren
Jan 9, 2018
20
18K
Feb 6, 2024
by
jdwarren
Glow Plugs on 2017-2019 L5P
GoBlowSnow
Dec 9, 2023
20
2K
Feb 2, 2024
by
trouthunterjohn
Engine Block Heater Recall - 2018 GMC Sierra 3500
AVE8R
Jan 28, 2024
4
314
Jan 30, 2024
by
AVE8R
D
Code questions P0191, P062D, P12A6
DouglasB12
Jan 28, 2024
4
464
Jan 28, 2024
by
Ron Nielson
F
Oil pan removal requires raising the engine???
FLJAR
Feb 25, 2022
21
11K
Jan 27, 2024
by
flyinhawaiian968
Whining noise when Cold during acceleration
Bigvandy
Dec 15, 2022
5
4K
Jan 24, 2024
by
OmgL5p!7653
L5P p0087 code!!
KalebG
Jun 21, 2023
21
2K
Jan 23, 2024
by
KalebG
P
DEF Warning Won't Reset - limited to 65 mph
Pcscout
Jul 13, 2021
32
40K
Jan 22, 2024
by
manduchiv
S
Rough idle
slayer1076
Jan 21, 2024
0
89
Jan 21, 2024
by
slayer1076
T
Lost Com with Nox A and B and Reductant Module
TxDmax76227
Oct 12, 2022
5
2K
Jan 20, 2024
by
coyote99
Transmission cooler return line 2017 - yours will eventually fail by design
sbowers61
Jul 4, 2018
4
5
6
179
91K
Jan 19, 2024
by
Mickey D
EGT sensor location
Pinkmist
Mar 16, 2021
16
28K
Jan 18, 2024
by
GMC2500HDBEAST
T
2017 L5P DEF tank relocation
toolman35e
Aug 7, 2017
28
51K
Jan 16, 2024
by
chevycowboys
S
2018 shift points
stephenr_65
Jan 2, 2024
1
251
Jan 15, 2024
by
stephenr_65
M
2018 L5P Vibration Between 1200-1800 RPM
Midnight L5P
Jan 1, 2024
3
497
Jan 15, 2024
by
wgoetsch10
Fuel tank whining like siren
Beretta96man
Jan 23, 2018
31
12K
Jan 14, 2024
by
RICKGGMAN
0
Oil Leak
01tundra
Mar 11, 2017
2
49
50K
Jan 14, 2024
by
sparky11
S
STORED CODES P026D,P20B9.P20BB.P248A SPEED LIMITED
seventyfourci
Jan 10, 2024
5
220
Jan 11, 2024
by
seventyfourci
A
2017 L5P High Country Service Exhaust Fluid System
abelcruz01
Jan 5, 2024
3
469
Jan 5, 2024
by
abelcruz01
L5P oil consumption
jdwarren
Dec 16, 2018
2
65
22K
Jan 5, 2024
by
cfell
1
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2017-19 GM T-K2 Platform Powertrain
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Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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