6.6L Duramax Turbo Diesel V-8 L5P News

The Duramax L5P is a General Motors turbo-diesel V8 engine used in the 2500HD and 3500HD models of the Chevrolet Silverado and GMC Sierra pickup trucks. This page displays GM Duramax L5P engine news, pictures, videos, reviews, gossip and more.

How Does GM’s Duramax V8 L5P Engine Stack Up To The Competition?

Checking out the spec sheets for Ford and Ram.

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Some 2024 GMC Sierra HD Units Will Need A Transmission Replacement

Because of an incorrect caged piston bearing.

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2024 Chevrolet Silverado HD LTZ DRW front three quarters

Some 2024 Chevy Silverado HD Units Will Need A Transmission Replacement

Due to an incorrect caged piston bearing.

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GM Releases Fix For 2024 Chevy Silverado HD Duramax Selective Catalyst Reduction Fault

Important ECM update for 6.6L V8 L5P engine.

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GM Releases Fix For 2024 GMC Sierra HD Duramax Selective Catalyst Reduction Fault

Unclear how many units affected.

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2025 Chevrolet Silverado 2500 HD Trail Boss

Cold Air Inductions Introduces New Intake Kit For Silverado HD, Sierra HD Duramax

Featuring all-metal construction.

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Here May Be Why Your 2024 GMC Sierra HD Is Stalling

Some units have software issues to fix.

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Here May Be Why Your 2024 Chevy Silverado HD Is Stalling

A software glitch requiring roughly 30 minutes to fix.

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Chevy Silverado, Tahoe And Suburban Get Duramax Diesel DEF Sensor Fix

No parts necessary.

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Here’s The 2024 Chevy Silverado HD Duramax Diesel Engine Take Rate

The Duramax take rate is expected to be even higher in the ZR2.

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2022 GMC Sierra HD Duramax Recalled For Faulty Engine Control Module

The ECM may not detect faults, set Diagnostic Trouble Codes or illuminate the Malfunction Indicator Light.

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2022 Chevy Silverado HD Duramax Recalled For Faulty Engine Control Module

It should take GM technicians roughly 1.5 hours to complete the recall.

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Stop-Sale Order On Chevy Silverado HD And MD, GMC Sierra HD Duramax Diesel

The L5P may experience a hydro-lock / no start issue.

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GM To Repurchase Silverado HD, Sierra HD Units Due To Duramax Diesel Engine Quality Issue

It's unclear how many units are affected.

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Banks Power To Unveil Supercharged GM Duramax High-Performance Engine At SEMA

Leave it to Banks to develop a turkey supercharged diesel crate engine.

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2023 Silverado HD Dually Reveals New Grille, Front End Design

The refreshed Silverado HD is expected to arrive for the 2023 model year.

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2019 Chevrolet Silverado 4500HD Medium Duty

Aged Chevy Silverado MD Continues To Slowly Decrease

The commercial truck has been a solid performer for the Bow Tie brand.

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2023 Silverado HD, Sierra HD Duramax Rumored At Nearly 1,100 Pound-Feet Of Torque

Big diesel power incoming?

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GM Benchmarking Ford F-350 Super Duty Dually

The GM-Ford cross-town rivalry is as stronger than ever.

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Silverado HD, Sierra HD Powertrain Updates Incoming

Expected to arrive with the upcoming model refreshes.

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GM To Replace NOx Sensor In Some 2020 Chevy Silverado HD, GMC Sierra HD Trucks

Heads up, diesel Chevy and GMC owners.

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This Chevy Silverado HD Crew Cab Model Sells The Slowest

Incidentally, this same configuration makes up the majority of inventory.

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Availability Of GM Diesel Models Has Doubled Since 2016

From six models in 2016 to 12 in 2021.

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GM To Prioritize Production Of 2021 GMC Sierra HD Crew Cab

Customers hoping for a Regular Cab or Double Cab may have to wait a little while.

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Extracting 1,000+ HP From A Duramax L5P V8: Video

How much power will an L5P make on stock internals?

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Banks Power Tunes L5P V8 Duramax Engine To 912 Horsepower: Video

More than double the stock power!

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