2020+ LM2 Duramax Powertrain | Chevy and GMC Duramax Diesel Forum

Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!

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68

12K

by Lou S

3.0 Duramax won’t fire

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389

43K

Who can tune the LM2 computer?

2

5K

by dotmat

3.0L trip report

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560

LM2 DEF Tank Issue

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200

Start / Stop Feature

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382

by mxrob

SOB BP! Why have green handles for your gas AND diesel?!

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58

3K

Oil leaks on new 3.0 Duramax?

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51

10K

by yh3000

2022 LM2 gets a higher tow rating -- 13,300

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503

Question for Amsoil users

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229

by 98whitelightnin

Oil Change..Education 3.0

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49

8K

towing with your LM2??

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75

14K

Going back old school - Changing my own oil

2 3 4

63

4K

Post your mileage and your BEST fuel mileage?

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33

2K

Breaking News: GM Is Stopping Production of the 3.0-liter Duramax

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26

2K

PPE PF66 Replacement Filter

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33

1K

Blackstone Lab Report LM2

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465

LM2 Reliability

16

1K

2021 GMC Sierra 3.0 issues

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1K

Airbags failing to deploy in late-model General Motors vehicles, mostly full-size pickup trucks and sport utility vehicles.

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210

2

23

3K

4

612

10 spd Allison shifts

18

6K

LM2 Turbo Sound

4

795

Defeat Device Lawsuit

4

668

2020 LM2 Oil leaking?

15

2K

2

38

23K

3.0 Duramax Rear main seal

14

2K

by sticksandspades

Found & Fixed The "Valve'Problem on 3.0 Liter Diesel .Its not the Valve or Harness

2 3 4

62

8K

by camjr

Dexos D oil giving me a hard time

3 4 5

93

4K

Preferred App for Bluetooth OBD

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236

by Bad-influence

Check Engine - failed DPF regeneration on 2021 Yukon Duramax - any options to avoid in the future?

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69

7K

2020 6.6 duramax cranks won’t start

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288

by mxrob

3.0 Duramax Positive Experiences?

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92

29K

by BCBren

EGR throwing a code

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311