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"...
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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...
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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)
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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