A recall has been issued for certain 2021 model-year GM SUVs due to a control module problem that may lead to a fuel pump failure. The problem: in affected GM SUVs, the fuel pump power control module ...

General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL vehicles. The fuel pump power control module may cause the fuel ...

Answer:No, and yes. GM's Active Fuel Management, as with all cylinder deactivation systems, does improve fuel economy. But the amount of fuel savings between V-8 and V-4 mode is somewhat of a gray ...