2017-19 GM T-K2 Platform Powertrain | Chevy and GMC Duramax Diesel Forum

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Sticky Definitive L5P Regen thread

5 6 7

125

29K

2

3K

Help- Code P10450 DEF Pump has to be replaced?!

7

186

Weird sound from fuel tank?

5

170

by JayLLY

Battery maintainer for rarely used 2019 3500HD Dmax

2

24

3K

2018 3500HD - P129F code, left stranded.

2

31

15K

HELP (Code P2ADA) 2017 L5P

14

1K

Does changing to lower gears cause problems with L5P’s ?

13

4K

P2481 code Exhaust gas temperature sensor circuit range code

2

20

6K

2018 Denali HD - CEL and P026D code

5

461

L5p injector connectors

5

1K

L5P wiring nightmare?

2

20

753

Vibration in Front Driveline - Only Under Load

14

5K

2019 L5P DEF warning not coming until 300 miles before empty

9

390

Reduce Power Mode right after lightning strike

14

425

Ticking sound when idling

2

33

45K

Fuel economy different

9

819

Glow plug issues and block heater recall question

8

10K

New 2019 and possible Dpf issues.

7

657

by darmah59_6329

L5P fuel filter failure

4 5 6

107

22K

by ShopSpecialties

Third time in for Injectors

2

36

32K

2017 L5P Exhaust sensors

2

20

834

Headlights on the 2018. Are they good or still crap

2 3

40

13K

2019 LIFTER TAP NOISE AT IDLE.

11

1K

L5P Duramax problems

5

618

2018 2500HD Sloppy Steering

2 3

59

33K

by mikemillersamnet

5

566

by er453d

P20e8 only when hot outside

6

2K

Swap out factory lift pump for Fass or AirDog?

4

418

Comming to a stop and then feeling like I get hit from behind

2

27

3K

3

335

13

671

Coolant Surge Tank - Is the Sensor an Updated Part in Replacement Tank?

3

343

by cfell

Ordered Fleece adaptor w/Donolson

1

329

Rotella T6 Engine oil

1

515

Transmission cooler return line 2017 - yours will eventually fail by design

7 8 9

178

76K

by lpsc01