Duramax News | Duramax Diesel Engine

Nov 26

Special CoverageN242454441 Momentary Rear Wheel Lock-Up

Hey there, fellow truck owners! I just wanted to give you the heads up on a new special coverage policy from GM that you might want to...

Nov 25

2024 Model Year Vehicles: N242478260 - Loose Steering Gear Motor Bolts/Fasteners

Important Service Update for 2024 Model Year Vehicles: N242478260 - Loose Steering Gear Motor Bolts/Fasteners Release Date : November...

Oct 24

MASSIVE RECALL INCOMING? N242454440

GM Issues Stop Delivery Order for Safety Recall: Momentary Rear Wheel Lock-Up Affects Multiple Models (2020-2022) Date of Recall :...

Oct 15

Your Comprehensive Guide to DEF Fluid for Your Duramax Diesel Truck

If you’ve just purchased your first Duramax diesel truck, you’re likely excited about its power and performance. However, as a new diesel...

Sep 22

Service Update - 2500HD / 3500HD 10 Speed Transmission N242455950

General Motors has found a large enough issue with the 2024 and 2025 Silverado / Sierra 2500 HD / 3500 HD with the 10 speed "Allison"...

Aug 21

LZ0 Engine Axed For Cadillac But Finds Home In Chevrolet / GMC SUV's

The time has come, we finally get to see the LZ0 engine make it's way into the 2025 SUV's but unfortunately Cadillac felt the demand was...

Aug 21

California Owners: 3.0 Duramax Diesels Require a Reprogram

N242441450 just came out that applies to all 3.0 Duramax Diesels in California (2021 - 2024) (LM2 and LZ0)

Jun 1

LZ0 ECM Update Available ! Regen Fix?

A new ECM Calibration Update has just arrived. This update is available if you have one of these codes listed below, DO NOT GO TO YOUR...

May 30

3.0 Duramax Diesel with LZ0 Possible Leak at Intake Manifold

A technical service bulletin #22-NA-128 addressing a malfunction indicator lamp (MIL) illumination issue has been updated to now include...

May 16

2024 L5P Major Engine Issue Found !

UPDATE- it has been said, not confirmed, that there are approximately 10 vehicles involved Release Date: May 2024 Program Effective...

May 14

What is: Diesel Fuel Injection Small Quantity Adjustment

In modern diesel fuel systems, small quantity adjustment plays a crucial role in optimizing engine performance and fuel efficiency. Small...

May 10

2024 Silverado / Sierra Sheet Metal Splitting !?!?

If you own a 2024 Silverado or Sierra, it would be a good idea to inspect your left rear door jamb for any cracks. GM has just informed...

May 9

What is Regen / Regeneration in the 3.0 Duramax Diesel

Understanding Exhaust Regeneration in Your Chevrolet Silverado with a 3.0 Duramax Diesel Engine If you're a new owner of a Chevrolet...

Apr 16

0w20 Dexos D Oil Analysis Comparison - 3.0L Duramax Diesel

It is often wondered just how the 0w20 Dexos D engine oil is holding up in the modern 3.0 Liter Duramax Diesel. Some have purchased oil...

Apr 11

Truck / SUV May Not Restart - P138C - FIX

I am happy to inform you there is finally a fix to this stop/start issue. I personally experienced this with my 2023 LZ0 and I mentioned...