coolingHeater Control Valve Torque Specsfor 2012 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · 4WDUnitslb-ftNm9 fastenersSeqComponentTorqueAngle—Cover Screws8 lb-ft · 11 Nm——Drain PetcockHand tight7 lb-ft · 9 Nm——Fan Bolts11 lb-ft · 15 Nm——Hose Clamps2 lb-ft · 3 Nm——Housing BoltsCritical10 lb-ft · 14 Nm——Mounting Bolts20 lb-ft · 27 Nm——Pump BoltsCriticalTorque in sequence24 lb-ft · 33 Nm——Thermostat Housing BoltsCritical14 lb-ft · 19 Nm——Valve Mounting6 lb-ft · 8 Nm—📝 Suggest a correction to this torque spec