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Chevy / GMC Duramax 2017+ L5P Forums
2020+ GM T1 Platform Powertrain
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8
4wd
dmax65
6d ago
3
150
5d ago
by
Durabiopwr
24 l5p oil filter
Dirtymax1515
Nov 4, 2023
14
2K
7d ago
by
jlawles2
A
2024 L5P throttle response issues
ARod221
Sep 23, 2023
17
3K
Mar 11, 2024
by
ashnbak
H
DEF consumption y'all are experiencing
hotairgypsy
Feb 6, 2020
2
3
78
36K
Mar 10, 2024
by
redwngr
Newer truck, several???
Bama Fan
Mar 3, 2024
5
336
Mar 7, 2024
by
redwngr
Fuel Born Catalyst
Gozer
Mar 5, 2024
9
276
Mar 6, 2024
by
JonM21Ltz
Just for Fun - GMC/Allison 10L1000 vs 10R140 - To be the same, Or not to be, This is the question.
Satar
Mar 1, 2023
Poll
2
3
4
132
21K
Mar 2, 2024
by
77cruiser
D
Service Parking Brake DIC Message
donbaldw
Jun 11, 2021
35
41K
Feb 29, 2024
by
Waldo_FL
2024 L5P RATTLE / TICK AT IDLE
ashnbak
Feb 26, 2024
3
361
Feb 27, 2024
by
ashnbak
Cold Start Oil Pressure Issue
944Sracer
Dec 24, 2023
16
843
Feb 27, 2024
by
Ron Nielson
K
2024 Chevy 3500 HC - Oil Change heard of filter leaks
knight2rider
Nov 1, 2023
9
2K
Feb 26, 2024
by
ashnbak
D
2022 3500 CCLB - Changed Fuel Filter and now 3 days later and 200 miles, fuel pouring out...
DoubleB
Feb 14, 2024
18
1K
Feb 24, 2024
by
mulefan3220
VSE L5P Fuel System Saver
Ccdmax7
Jul 17, 2022
2
3
4
174
27K
Feb 24, 2024
by
Gamja
V
2020 Duramax will not crank
Vranasaurus
Feb 10, 2024
13
538
Feb 22, 2024
by
Vranasaurus
T
2020 L5P P020D Limp Mode
ThoreousPrime
Dec 29, 2023
3
556
Feb 21, 2024
by
ThoreousPrime
2024 AT4X
Caper11
Feb 19, 2024
8
553
Feb 21, 2024
by
Caper11
First Post Engine Block Heat ?
23HighCountry
Dec 20, 2022
2
37
3K
Feb 19, 2024
by
Caper11
Loud engine noise during engine brake
Towpig717
Feb 13, 2024
9
468
Feb 19, 2024
by
Jellyfrosh
2024 duramax oil cooler leak
Zooky14
Aug 23, 2023
27
5K
Feb 16, 2024
by
Zooky14
2021 EGR clogged - not a short trip vehicle
_Kegger_
Mar 23, 2023
13
3K
Feb 15, 2024
by
FreedomOne
H
active aero shutters
H1ghlndr
Jun 23, 2020
23
16K
Feb 13, 2024
by
Andy2024
J
2020 Duramax thumping sound
jhc
Oct 31, 2019
20
21
22
1K
224K
Feb 7, 2024
by
brinegs
L
Average mileage where issues come up?
Lifeisgoodsteve
Jan 29, 2024
13
890
Feb 7, 2024
by
TBone
D
2017 no delete black smoke
Duramaxnewbie101
Apr 23, 2023
18
2K
Jan 28, 2024
by
redwngr
N
truck shaking at idle
NJBreeze
Jul 7, 2021
2
3
76
36K
Jan 26, 2024
by
brinegs
N
Claims of lackluster exhaust brake
nick112288
Jul 17, 2020
2
3
68
24K
Jan 24, 2024
by
JCFD142
L
Please help me identify this reservoir / hose on my 2020 Silverado 2500 Duramax
LankyT
Dec 14, 2022
27
12K
Jan 23, 2024
by
jlawles2
Bad DEF warning - Maverick's in Idaho
jawrshe
Jan 18, 2024
21
822
Jan 22, 2024
by
jawrshe
L
2020 3500 w/ 10L1000 - Inconsistent Rough Downshift while nearly stopped (coasting)
L5Patriot
Dec 27, 2023
22
838
Jan 20, 2024
by
Satar
2022 Duramax Silicone Oil Pan Heater Advise
poosniffer
Nov 3, 2022
2
3
105
9K
Jan 17, 2024
by
Satar
A
p11d5 code
Alloutdrs1
May 28, 2023
11
5K
Jan 15, 2024
by
Alloutdrs1
17-19 L5P Oil Neck Upgrade
FightinTexasAggie
Jan 16, 2020
2
53
16K
Jan 15, 2024
by
nickmorrison17
Oil leak?
Jeremywatco
May 21, 2023
12
2K
Jan 15, 2024
by
Snoozer
P2C48 code on 2020 Sierra 2500hd
Frogman32
Jul 27, 2021
18
19K
Jan 12, 2024
by
MattChavez
R
Duramax L5P PIDS that should be monitored
RamNavy
Jan 8, 2024
29
2K
Jan 12, 2024
by
darmah59_6329
1
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2020+ GM T1 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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