2020+ GM T1 Platform Powertrain | Chevy and GMC Duramax Diesel Forum

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2020 Duramax thumping sound

52 53 54

1K

161K

by 6.5 Creedmoor

2024 HP numbers revealed

8 9 10

194

6K

2020 3500 HD 10 SPEED

4

258

New GM/Delco engine oil filter for 2020+L5P

19

821

at the factory?

3

214

DEF consumption y'all are experiencing

2 3 4

61

20K

Bad Cat already!!?? 2022 at4 3500

15

3K

by gablergreg88

10sp Allison fluid filling

11

487

DEF Refill: How Low Before You Fill Up?

2

32

2K

Edge CTS3 and PID’s for DEF or UREA

11

957

Insane Diesel Bypass Oil Filter System

13

3K

Bad Fuel Economy

2 3 4

65

13K

Passive Regen During Short Road Trip Today...

18

1K

Before and after the regen recall

2

32

2K

DEF Tank Harness Melted

3

320

Oil options? 2nd oil change

13

664

by 07GFX

Pedal Monster on 2020+ L5P Trucks ?

2 3 4

69

6K

by flyinhawaiian968

Fluttering or rumbling at cruise w/ CAI with light throttle?

3

996

Banks idash or Edge CTS3 for 2022 6.6L Duramax?

13

899

2022 2500 duramax possible rear main seal leak

9

717

by Phillk

Pulsar V3 on 2021 all smiles :)

2

38

9K

by StrikeTheBox911

2022 Silverado 2500 Duramax Oil drip

2

37

3K

Check Engine Light

5

375

Most miles on 2020+ L5P?

5

2K

High mileage 2020+ HDs

14

4K

Fuel pump control module on a 2020

12

806

Rattle when coasting or coming to stop. Help!

5

1K

Check engine light already

2

28

20K

truck shaking at idle

2 3

58

13K

Short Trippers: How Are You Guys Managing Regens?

2

32

3K

Allison “Branded” Transmission

2

29

8K

VSE L5P Fuel System Saver

1

763

P0106 2020 Duramax

8

3K

by 2020hd_Arkansas

2020 GMC 2500HD Torque Converter Issues

2

21

6K

by Bear76

rear diff covers

2 3 4

69

3K