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

2020 Duramax thumping sound

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861

61K

by Dean E

How does lack of use affect a modern diesel truck.

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21

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2020 L5P Oil Filters?

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62

21K

17-19 L5P Oil Neck Upgrade

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52

4K

Engine "thumping" at idle

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272

by Flitch

2020 L5P Oil Drain Plug Stripped Out

4

359

First service question

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809

1

196

2

374

Sensor cleaning

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372

Dead Battery Warning - Parking Brake Won't Release

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830

by jharp

Issues and Recalls

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2K

Un-FKN-believable!!

18

2K

2

22

14K

Coolant return line under fan shroud - address if you have a 2020

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540

by Desertwarrior

Downhill Operation

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47

2K

2020 3500 HD L5P knocking

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654

Allison 10 speed downshifts wrong?

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27

3K

by Desertwarrior

Auto grade brake/High RPM downhill

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502

10-Speed Transmission Serviceability

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33

3K

2020 Sierra 2500 AT-4 injector code

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786

7

504

P02DB 2020 Duramax #8 Injector

2

626

by WayLay

10L1000 Servicing

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1K

2

522

by Desertwarrior

Front axle actuator fail - truck buyback?

10

2K

by Nitro Junkie

Looking for good funnel to use with 2.5 gallon oil jug.

11

1K

Power steering leak

8

5K

Best Diesel Stabilizer for Winter Storage

6

570

2020 Chevy 2500 Duramax Transmission Failure

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26

6K

2020 2500HD Z71 Fuel Filter Change

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1K

JUST BOUGHT 2018 Sierra. New to diesel world

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39

2K

What programmer will clear DEF/Emissions codes?

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863

by UPfan

New Here and Problems

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31

4K

by BrokenBackJack

Stuck in Idaho Falls: Failed regen failed forced regens

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by DirtymaxTowpig