engineSerpentine Belt Torque Specsfor 2018 Chevrolet Impala 2.5L I4 Ecotec · AWDUnitslb-ftNm4 fastenersSeqComponentTorqueAngle—Belt Tensioner Bolt41 lb-ft · 55 Nm——Belt Tensioner Bolt41 lb-ft · 55 Nm——Idler Pulley Bolt33 lb-ft · 45 Nm——Idler Pulley Bolt33 lb-ft · 45 Nm—📝 Suggest a correction to this torque spec