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GM Duramax diesel DEF tank failures, limp mode and long repair delays – owners’ share concerns

GM Duramax diesel DEF tank failures are increasingly popping up in social media and owners are furious about the problems around the issues with the trucks. These complaints keep popping up on various ...
Jalopnik

3.0L Duramax Problems: Here's What Owners Report Most Often

About two decades after the launch of the 6.6-liter Duramax V8, GM's 3.0-liter Duramax inline-six turbodiesel arrived in 2019 with a promise to deliver "outstanding fuel economy, great horsepower, and ...
WGN Radio

Common Diesel DEF Problems and How to Solve Them

HOLLY, Mich., April 16, 2025 (GLOBE NEWSWIRE) -- A diesel truck, car or SUV that is losing power and fuel economy, shutting down unexpectedly, and/or has a DEF warning light illuminated is probably ...
Truckinginfo

EPA Acts to Curb Sudden DEF-Related Diesel Engine Derates

The Environmental Protection Agency announced it is taking actions to ease the frustration and disruptions around sudden “derates” of diesel engines when they run out of diesel exhaust fluid or have a ...
Truckinginfo

DTNA Software Update Gives Truckers More Time Before DEF Derates Take Effect

Daimler Truck North America is updating emissions software on about 330,000 Detroit-powered trucks, giving fleets more time to address diesel exhaust fluid system faults before severe derates take ...