Service Update - 2500HD / 3500HD 10 Speed Transmission N242455950
top of page
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...
119
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)
696
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...
1,490
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...
540
May 16
2024 L5P Major Engine Issue Found !
UPDATE- it has been said, not confirmed, that there are approximately 10 vehicles involved Release Date:Â May 2024 Program Effective...
9,831
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...
139
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...
600
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...
729
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...
1,068
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...
728
Apr 8
Oil Consumption Fix #22-NA-027
If you have a 2020 - 2022 3.0 Duramax Diesel and are experiencing engine oil consumption, you may have a simple fix. Simple, being a...
459
Mar 29
Unwanted Tailgate Opening - Latest Fix (March 28 2024) Silverado Sierra 1500 Models
There is a recall out for unwanted tailgate opening but that is for the 2500/3500 trucks and not the 1500, unless, the truck is a...
270
Mar 28
SUPER CRUISE FIX AVAILABLE - B2BA1 - #24-NA-063
Super Cruise equipped vehicles have had their fair share of issues and GM has released a fix for one of them. If you are seeing a message...
92
Mar 27
RECALL - Automatic Exterior Lights May Not Activate As Required
NOTE- Canadian Trucks Only N232431050-10: CMVSS Noncompliance Recall - Automatic Exterior Lights May Not Activate As Required - (Mar 26,...
794
bottom of page