engineIntake Manifold Torque Specsfor 2021 GMC Sierra 1500 3.0L I6 Duramax Diesel · RWDUnitslb-ftNm9 fastenersSeqComponentTorqueAngle—Cover Bolts13 lb-ft · 18 Nm——Electrical Connector Bolts5 lb-ft · 7 Nm——Fuel Rail Bolts⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL9 lb-ft · 12 Nm——Gasket Surface BoltsClean mating surfaces16 lb-ft · 22 Nm——Intake Manifold BoltsTighten in sequence from center out | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL18 lb-ft · 25 Nm——Mounting Bolts37 lb-ft · 50 Nm——PCV Valve⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL6 lb-ft · 8 Nm——Sensor Mounting Bolts8 lb-ft · 11 Nm——Throttle Body Bolts⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL7 lb-ft · 10 Nm—📝 Suggest a correction to this torque spec