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New GM Bulletin Warns Front Differential Issue Can Lead to Frame Replacement
Written by Greg Nelson GM Technician | DuramaxNews.com Host of The 3.0 Duramax Podcast and the DemonWorks YouTube channel Bulletin: # 26-NA-001 Release Date: January 8, 2026 A newly released bulletin from General Motors highlights a front differential mounting issue on full-size GM SUVs that can escalate into frame replacement if not addressed early. While the bulletin centers on a clunking or rattling noise, the underlying failure mode makes this a critical inspection i
GM Bulletin # 24-NA-070 Revised: Start/Stop No-Restart Now Includes P1098 and Coolant Flow Control Valve Replacement
GM revised Bulletin 24-NA-070 on January 6, 2026, expanding coverage for 3.0 Duramax vehicles experiencing no-restart events during Auto Stop/Start operation. The update adds DTC P1098, introduces engine coolant flow control valve replacement when required, and includes expanded warranty guidance. The revision provides clearer diagnostic and repair direction beyond ECM software updates alone.
GM Bulletin PIT5689M: No Restart After Auto Stop, No Crank, Dead Battery — Check This Passenger-Side Firewall Ground
GM bulletin PIT5689M addresses no-restart after Auto Stop, intermittent no-crank, dead battery, glow plug faults, transfer case errors, and multiple warning lights on Silverado and Sierra trucks. The root cause is often a loose or damaged engine-to-body ground at the passenger-side firewall (G132/G134). Inspecting and securing this ground can prevent widespread electrical faults and unnecessary parts replacement.
6.6L Duramax Diesel Engine
New GM Emissions Recall N242438500: 2024 L5P Duramax SCR Fault Detection
General Motors has launched a new emissions recall that affects certain 2024 Chevrolet Silverado HD and GMC Sierra HD trucks equipped with the 6.6L L5P Duramax. Recall ID: N242438500 Title: ECM OBD – Selective Catalyst Reduction (SCR) Fault Detection Release Date: November 2025 Applies To: 2024 Chevrolet Silverado 2500HD / 3500HD (L5P 6.6L Duramax) 2024 GMC Sierra 2500HD / 3500HD (L5P 6.6L Duramax) This is a voluntary emissions recall focused on the software that monitors
EPA Issues Guidance to Fix DEF Derates: What the New Rule Means for Your 3.0 Duramax
If you’ve been driving your 3.0 Duramax-equipped truck or SUV, you're likely familiar with the frustration of a Diesel Exhaust Fluid...
The Devastating Consequences of Fuel Contamination in Your Duramax Diesel: DEF vs. Gasoline
For Duramax diesel owners, the fuel system is the lifeline of your vehicle’s performance, delivering the power and efficiency you rely...
3.0L Duramax Diesel Engine
Trailer Light Test Returns to the myChevrolet & myGMC Apps
GM has quietly brought back a feature that a lot of truck owners asked for — the Trailer Light Test inside the myChevrolet and myGMC mobile apps. If you tow regularly, this is one of those small updates that actually makes life easier. What Is the Trailer Light Test? The Trailer Light Test allows you to cycle your trailer lights directly from your phone , so you can stand behind the trailer and confirm everything is working — without climbing in and out of the cab. The tes
The 3.0 Duramax Goes to Sea: Why the OXE Marine + GM Deal Is Good News for Owners
When news broke that OXE Marine and GM Marine had signed a development agreement to use Duramax engines in a new generation of diesel outboards, most people saw it as a marine story. For 3.0 Duramax owners, it is something else entirely: It’s a strong signal that GM sees the LZ0 3.0L Duramax inline-six as a long-term platform, not a short-lived experiment. In this article, we’ll break down what the agreement actually says, why it matters for truck and SUV owners, and how a
LM2 3.0 Duramax: GM Issues Special Coverage for Coolant Control Valve (N252508341)
Release: September 2025 • Bulletin: N252508341 • Applies to (LM2 3.0L Duramax):Chevrolet: Silverado 1500 (2021–2022), Suburban...
Other Diesel News
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,...
Buyers Market -
New GM Bulletin Warns Front Differential Issue Can Lead to Frame Replacement
Written by Greg Nelson GM Technician | DuramaxNews.com Host of The 3.0 Duramax Podcast and the DemonWorks YouTube channel Bulletin: # 26-NA-001 Release Date: January 8, 2026 A newly released bulletin from General Motors highlights a front differential mounting issue on full-size GM SUVs that can escalate into frame replacement if not addressed early. While the bulletin centers on a clunking or rattling noise, the underlying failure mode makes this a critical inspection i
GM Bulletin # 24-NA-070 Revised: Start/Stop No-Restart Now Includes P1098 and Coolant Flow Control Valve Replacement
GM revised Bulletin 24-NA-070 on January 6, 2026, expanding coverage for 3.0 Duramax vehicles experiencing no-restart events during Auto Stop/Start operation. The update adds DTC P1098, introduces engine coolant flow control valve replacement when required, and includes expanded warranty guidance. The revision provides clearer diagnostic and repair direction beyond ECM software updates alone.
GM Bulletin PIT5689M: No Restart After Auto Stop, No Crank, Dead Battery — Check This Passenger-Side Firewall Ground
GM bulletin PIT5689M addresses no-restart after Auto Stop, intermittent no-crank, dead battery, glow plug faults, transfer case errors, and multiple warning lights on Silverado and Sierra trucks. The root cause is often a loose or damaged engine-to-body ground at the passenger-side firewall (G132/G134). Inspecting and securing this ground can prevent widespread electrical faults and unnecessary parts replacement.
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