Spanish Fork Auto Repair

Active Fuel Management (AFM)—also known as Cylinder Deactivation—is GM’s variable-displacement engine technology. It's designed to improve fuel economy by allowing V6 and V8 engines to deactivate cylinders under light-load conditions, such as steady highway driving. When deactivated, these cylinders are closed off and filled with trapped air, effectively turning them into air springs. This reduces energy loss through pumping, helping the engine run more efficiently while maintaining a smooth driving experience. 👨‍🔧 How AFM Works 🔧 Hydraulic Lifter Control AFM uses a combination of solenoids and hydraulically-actuated lifters, located in the engine valley, to disable specific intake and exhaust valves. These lifters, supplied by Eaton and Delphi, temporarily prevent certain cylinders from firing, allowing the engine to operate in a leaner mode when full power isn't ... read more

​General Motors (GM) has announced a significant recall impacting nearly 600,000 vehicles in the United States due to potential engine defects that could lead to power loss or complete engine failure. This recall affects several popular models across GM's Cadillac, Chevrolet, and GMC brands. Affected Models The recall encompasses certain 2021–2024 models equipped with the 6.2-liter V8 engine, including:​ Cadillac: Escalade, Escalade ESV Chevrolet: Silverado 1500, Suburban, Tahoe GMC: Sierra 1500, Yukon, Yukon XL​ The issue stems from manufacturing defects in the engine's ... read more

If you own a 2015 Duramax diesel truck, you know it’s a powerhouse built for performance. But even the toughest engines need proper maintenance to stay reliable—and one of the most important, yet often overlooked, services is a fuel filter replacement. What Does the Fuel Filter Do? The fuel filter is a crucial component of your Duramax diesel engine. It removes contaminants like dirt, rust, and water from the fuel before it reaches the injectors. For a common rail diesel system like the one in the 2015 Duramax, keeping fuel clean is essential to protect high-pressure injectors and prevent expensive damage. How Often Should You Replace It? GM recommends replacing the fuel filter on a 2015 Duramax every 15,000 miles, or sooner if you notice symptoms like: Hard starts or rough idling Decreased fuel efficiency Poor accel ... read more

General Motors (GM) has announced a recall affecting approximately 26,847 SUVs from the 2021 model year due to a software issue that may cause a sudden loss of power steering assist. This issue can make steering more difficult, especially at lower speeds, increasing the risk of an accident. Affected Models:Cadillac: Escalade, Escalade ESV Chevrolet: Suburban, Tahoe GMC: Yukon, Yukon XL What’s the Issue? The software defect can cause the power steering system to stop working either when the vehicle starts or while it’s in motion. When this happens, the driver will need to use significantly more force to steer the vehicle, particularly at lower speeds, which can be dangerous. If the problem occurs, drivers may hear a warning chime and see a malfunction indicator light on the dashboard. In some cases, restarting the vehicle may temporarily restore power steering. However, GM advises veh ... read more