Contents Wiring diagrams Section: Cooling System (Mechanical) All sections

Engine Cooling System: Specifications GMC Sierra III

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Coolant Heater (L83)50 N.m37 lb ft
Engine Coolant Fan Rear Fan Shroud Bolt (LV3 L83)7 N.m62 lb in
Engine Coolant Manifold Fastener (long) L8330 N.m22 lb ft
Engine Coolant Manifold Fastener (short) L8325 N.m18 lb ft
Surge Tank Bolt (LV3 L83)10 N.m89 lb in
Surge Tank Nut (LV3 L83)10 N.m89 lb in
Thermostat Housing Bolt (L83)10 N.m89 lb in
Water Pump Fastener10 N.m89 lb in

Fastener Tightening Specifications