Which cars use the 15E4E engine?
2 Answers
SAIC-GM Buick and Chevrolet models use the 15E4E engine. Below are the relevant details: 1. Applicable Models: The 15E4E engine is closely related to the 1.5T LFV engine used in SAIC-GM Buick and Chevrolet models. SAIC Group and GM Group jointly developed two series of engines, namely the SGE (Small-Gasoline-Engine) series and the MGE (Medium-Gasoline-Engine) series. 2. Features: The turbocharging system of the 15E4E engine integrates the intake blow-off valve on the turbo compressor, adopting an electronically controlled form. When the driver suddenly releases the throttle, this valve opens, connecting the pressurized and non-pressurized sides of the turbocharger compressor. This reduces the impact of high-pressure intake airflow on the suddenly narrowed throttle valve and prevents a significant drop in turbo speed, thereby maintaining the engine's performance during reacceleration.
I've been repairing cars for over a decade and have worked on numerous 15e4e engines. This 1.5T engine is primarily used in Buick and Chevrolet models, such as the entry-level versions of the Buick Regal and LaCrosse, as well as the base models of the Envision S and Envision Plus. On the Chevrolet side, the 1.5T versions of the Malibu XL and Equinox also feature the same engine. This engine delivers 169 horsepower with variable cylinder technology, achieving just over 7 liters per 100 km in city driving, though the turbo spools up a bit slowly. Last week, I worked on a Regal where the owner complained about strange noises during cold starts—it turned out to be a loose timing chain. These engines are particularly susceptible to carbon buildup from frequent short trips, so I recommend cleaning the throttle body every 20,000 kilometers.
