Engine Cooling System: Specifications — Chevrolet Silverado 1500 HD (2001-2006)

Engine Cooling System: Specifications Chevrolet Silverado 1500 HD

Fastener Tightening Specifications

Application	Specification
Application	Metric	English
Air Cleaner Outlet Duct Clamp (6.6L)	6 N.m	53 lb in
Air Cleaner Outlet Duct Clamp Screw (4.8L, 5.3L, and 6.0L)	7 N.m	62 lb in
Air Conditioning (A/C) Compressor Mounting Bolt (6.6L)	50 N.m	37 lb ft
Bypass Pipe to Water Pump Bolt (6.6L)	21 N.m	16 lb ft
Charged Air Cooler Duct Clamp (6.6L)	6 N.m	53 lb in
Coolant Air Bleed Pipe Stud/Bolt (4.8L, 5.3L, and 6.0L)	12 N.m	106 lb in
Coolant Crossover Bolt (8.1 L)	50 N.m	37 lb ft
Coolant Heater Bolt (6.6L)	2 N.m	18 lb in
Coolant Heater Cord Bolt	8 N.m	71 lb in
Coolant Heater Bolt (4.3L)	2 N.m	18 lb in
Coolant Heater (4.8L, 5.3L, and 6.0L)	50 N.m	37 lb ft
Coolant Heater (8.1 L)	60 N.m	47 lb ft
Engine Block Coolant Drain Plug (4.3L)	20 N.m	15 lb ft
Engine Block Coolant Drain Plug (4.8L, 5.3L, 6.0L, and 8.1 L)	60 N.m	44 lb ft
Engine Block Coolant Drain Plug (6.6L)	18 N.m	13 lb ft
Engine Coolant Temperature (ECT) Sensor (6.6L)	33 N.m	24 lb ft
Engine Shield Bolt	20 N.m	15 lb ft
Exhaust Manifold Pipe Nut (4.8L, 5.3L, and 6.0L)	50 N.m	37 lb ft
Fan Clutch Bolt	23 N.m	17 lb ft
Fan Clutch Nut	56 N.m	41 lb ft
Fan Pulley Bolt/Nut (6.6L)	46 N.m	34 lb ft
Fan Shroud Bolt	9 N.m	80 lb in
Fan and Water Pump Pulley Bolt (4.3L)	25 N.m	18 lb ft
Fuel Line Bracket Bolt (6.6L)	21 N.m	15 lb ft
Fuel Line to Fuel Injection Control Module Bolt (6.6L)	35 N.m	26 lb ft
Generator Bracket Bolt (6.6L)	50 N.m	37 lb ft
Generator Bracket Stud (8.1 L)	20 N.m	15 lb ft
Generator Positive Cable Nut (6.6L)	9 N.m	80 lb in
Heater Pipe to Fuel Filter Bolt (6.6L)	21 N.m	16 lb ft
Heater Pipe to Thermostat Bolt (6.6L)	21 N.m	16 lb ft
Heater Outlet Hose Bracket Bolt (6.6L)	21 N.m	16 lb ft
Idler Pulley Bolt (6.6L)	43 N.m	32 lb ft
Junction Block Bracket Bolt (6.6L)	9 N.m	80 lb in
Oil Cooler Hose Adapter Bolt (6.0L)	12 N.m	106 lb in
Oil Cooler Hose Bracket Bolt (6.0L)	25 N.m	18 lb ft
Oil Cooler Hose Bracket Bolt (8.1 L)	50 N.m	37 lb ft
Positive Crankcase Ventilation (PCV) Oil Separator Bracket Nut (6.6L)	21 N.m	16 lb ft
Power Steering Pump Bracket Bolt (6.6L)	46 N.m	34 lb ft
Radiator Bolt	25 N.m	18 lb ft
Surge Tank Bolt/Nut	9 N.m	80 lb in
Thermostat Housing Cover Bolt (6.6L)	21 N.m	16 lb ft
Thermostat Housing Bolt (4.8L, 5.3L, and 6.0L)	15 N.m	11 lb ft
Thermostat Housing Bolt (8.1 L)	37 N.m	27 lb ft
Thermostat Crossover Bolt (6.6L)	21 N.m	16 lb ft
Transmission Control Module (TCM) Cover Bolt	9 N.m	80 lb in
Transmission Control Module (TCM) Electrical Connector Bolt	8 N.m	71 lb in
Turbocharger Coolant Bypass Valve (6.6L)	60 N.m	44 lb ft
Turbocharger Outlet Coolant Pipe to Pipe Bracket Bolt (6.6L)	21 N.m	16 lb ft
Turbocharger Outlet Coolant Pipe Nut (6.6L)	9 N.m	80 lb in
Water Outlet Bolt (8.1 L)	30 N.m	22 lb ft
Water Outlet Stud (4.3L)	25 N.m	18 lb ft
Water Outlet Tube to Thermostat Housing Bolt (6.6L)	21 N.m	16 lb ft
Water Outlet Tube to Valve Rocker Arm Cover Bolt (6.6L)	21 N.m	16 lb ft
Water Pump Bolt (4.3L)	45 N.m	33 lb ft
Water Pump Bolt (First Pass) (4.8L, 5.3L, and 6.0L)	15 N.m	11 lb ft
Water Pump Bolt (Final Pass) (4.8L, 5.3L, and 6.0L)	30 N.m	22 lb ft
Water Pump Bolt (6.6L)	21 N.m	16 lb ft
Water Pump Bolt (8.1L)	50 N.m	37 lb ft
Water Pump to Water Pump Housing Bolt (6.6L)	21 N.m	16 lb ft
Water Pump to Water Pump Outlet Pipe Nuts (6.6L)	21 N.m	16 lb ft
Wiring Harness Bracket to Thermost Housing Bolt (6.6L)	8 N.m	71 lb in