2006 Chevrolet Express 3500 Service & Repair Manual

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado SPECIFICATIONS FASTENER TIGHTENING SPECIFICATIONS Application Specification Metric English Accelerator Control Cable Bracket Nut to Stud 12 N.m 106 lb in Accelerator Control Cable Bracket Nut to Throttle Body 9 N.m 80 lb in Accelerator Control Cable Bracket Stud to Intake Manifold 6 N.m 53 lb in Accelerator Control Cable Bracket Stud to Throttle Body 12 N.m 106 lb in Air Cleaner Adapter Stud 8 N.m 71 lb in Balance Shaft Driven Gear Bolt  First Pass 20 N.m 15 lb ft  Final Pass 35 degrees Balance Shaft Retainer Bolt 12 N.m 106 lb in Battery Cable Bracket Bolt to Oil Pan 12 N.m 106 lb in Battery Negative Cable Bolt to Engine 25 N.m 18 lb ft Battery Positive Cable Junction Block Bracket Bolt 25 N.m 18 lb ft Belt Idler Pulley Bolt 50 N.m 37 lb ft Camshaft Retainer Bolt 12 N.m 106 lb in Camshaft Sensor Bolt N.m lb ft Camshaft Sprocket Bolt 25 N.m 18 lb ft Connecting Rod Bolt  First Pass 20 N.m 15 lb ft  Final Pass 100 degrees Crankshaft Balancer Bolt 95 N.m 70 lb ft Crankshaft Bearing Cap Bolt - Preferred Method  First Pass 20 N.m 15 lb ft  Final Pass 73 degrees 2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado 2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Crankshaft Bearing Cap Bolt 105 N.m 77 lb ft Crankshaft Position Sensor Bolt 9 N.m 80 lb in Crankshaft Pulley Bolt 58 N.m 43 lb ft Crankshaft Rear Oil Seal Housing Bolt and Nut 12 N.m 106 lb in Crankshaft Rear Oil Seal Housing Retainer Stud 6 N.m 53 lb in Crossmember Bolt 100 N.m 74 lb ft Cylinder Head Bolt - Preferred Method  All Bolts First Pass in Sequence 30 N.m 22 lb ft  Long Bolts Final Pass in Sequence 75 degrees  Medium Bolts Final Pass in Sequence 65 degrees  Short Bolts Final Pass in Sequence 55 degrees Cylinder Head Core Hole Plug 20 N.m 15 lb ft Distributor Cap Bolt 2.4 N.m 21 lb in Distributor Clamp Bolt 25 N.m 18 lb ft Drive Belt Idler Pulley Bolt 50 N.m 37 lb ft Drive Belt Tensioner Bolt 50 N.m 37 lb ft Engine Block Left Side Oil Gallery Plug 20 N.m 15 lb ft Engine Block Left Rear Oil Gallery Plug 30 N.m 22 lb ft Engine Block Right Rear Oil Gallery Plug 20 N.m 15 lb ft Engine Block Coolant Drain Hole Plug 20 N.m 15 lb ft Engine Block Oil Gallery Plug 20 N.m 15 lb ft Engine Coolant Heater Bolt/Screw 2 N.m 18 lb in Engine Coolant Temperature (ECT) Sensor 20 N.m 15 lb ft Engine Flywheel Bolt 100 N.m 74 lb ft Engine Front Cover Bolt 12 N.m 106 lb in Engine Lift Front Bracket Stud 35 N.m 26 lb ft Engine Mount Bolt to Engine Bracket 50 N.m 37 lb ft Engine Mount Engine Bracket Bolt to Engine 50 N.m 37 lb ft Engine Mount Frame Bracket Through-bolt 75 N.m 55 lb ft Engine Mount Frame Side Mount Bolt 65 N.m 50 lb ft Engine Oil Level Sensor 13 N.m 115 lb in Engine Oil Pressure Gage Sensor 30 N.m 22 lb ft Engine Oil Pressure Gage Sensor Fitting - Plus Required Angle 15 N.m 11 lb ft 2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Engine Shield Bolt 20 N.m 15 lb ft Engine Wiring Harness Bracket Bolt to Battery Positive Cable Junction Block Bracket 9 N.m 80 lb in Engine Wiring Harness Bracket Bolt to Generator and Drive Belt Tensioner Bracket 25 N.m 18 lb ft Engine Wiring Harness Bracket Nut to Evaporative Emission (EVAP) Canister Purge Solenoid Valve Stud 9 N.m 80 lb in Engine Wiring Harness Bracket Nut to Intake Manifold Stud 12 N.m 106 lb in Engine Wiring Harness Bracket Stud 25 N.m 18 lb ft Engine Wiring Harness Clip Bolt 9 N.m 80 lb in Engine Wiring Harness Ground Nut 16 N.m 12 lb ft Evaporative Emission (EVAP) Canister Purge Solenoid Valve Stud to Intake Manifold 10 N.m 89 lb in Exhaust Manifold Bolt/Stud  First Pass 15 N.m 11 lb ft  Final Pass 30 N.m 22 lb ft Exhaust Manifold Heat Shield Bolt 9 N.m 80 lb in Fan and Water Pump Pulley Bolt 25 N.m 18 lb ft Frame Cross Bar Bolt 100 N.m 74 lb ft Fuel Meter Body Bracket Bolt 10 N.m 89 lb in Fuel Pipe Bracket Bolt 6 N.m 53 lb in Fuel Pipe Retainer Nut 3 N.m 27 lb in Fuel Supply Pipe Nut - Fuel Tank Side 30 N.m 22 lb ft Generator and Drive Belt Tensioner Bracket Bolt to Engine 41 N.m 30 lb ft Generator and Drive Belt Tensioner Bracket Stud to Engine 20 N.m 15 lb ft Generator and Drive Belt Tensioner Bracket Stud Nut 41 N.m 30 lb ft Ground Wire Bolt to Rear of Left Side Cylinder Head 16 N.m 12 lb ft Ground Wire Nut to Rear of Right Side Cylinder Head 16 N.m 12 lb ft Heater Hose Bracket Bolt to Generator and Drive 2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Belt Tensioner Bracket 25 N.m 18 lb ft Hood Hinge Bolt 25 N.m 18 lb ft Ignition Coil Stud 12 N.m 106 lb in Junction Block Bracket Bolt 25 N.m 18 lb ft Knock Sensor 25 N.m 18 lb ft Lift Bracket Bolts 15 N.m 11 lb ft Lower Intake Manifold Bolt  First Pass in Sequence 3 N.m 27 lb in  Second Pass in Sequence 12 N.m 106 lb in  Final Pass in Sequence 15 N.m 11 lb ft Oil Cooler Pipe Bracket to Oil Pan Bolt 12 N.m 106 lb in Oil Filter 30 N.m 22 lb ft Oil Filter Adapter 55 N.m 41 lb ft Oil Filter Fitting 55 N.m 41 lb ft Oil Level Indicator Tube Bolt 12 N.m 106 lb in Oil Pan Baffle Bolt 12 N.m 106 lb in Oil Pan Bolt and Nut 25 N.m 18 lb ft Oil Pan Drain Plug 25 N.m 18 lb ft Oil Pan Skid Plate Bolt 20 N.m 15 lb ft Oil Pump Bolt to Rear Crankshaft Bearing Cap 90 N.m 66 lb ft Oil Pump Cover Bolt 12 N.m 106 lb in Positive Battery Cable Clip Bolt 9 N.m 80 lb in Positive Cable Generator Nut 18 N.m 13 lb ft Power Steering Pump Bracket Bolt to Engine 41 N.m 30 lb ft Power Steering Pump Bracket Stud to Engine 20 N.m 15 lb ft Power Steering Pump Bracket Stud Nut 41 N.m 30 lb ft Power Steering Pump Bolt 50 N.m 37 lb ft Power Steering Pump Nut to Engine - Rear Bracket to Engine 41 N.m 30 lb ft Power Steering Pump Rear Bracket Nut 50 N.m 37 lb ft Secondary Air Injection (AIR) Check Valve Pipe Bracket Bolt to Exhaust Manifold 10 N.m 89 lb in Secondary Air Injection (AIR) Check Valve Pipe Stud Nut 25 N.m 18 lb ft Spark Plug 15 N.m 11 lb ft 2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

ENGINE MECHANICAL SPECIFICATIONS Spark Plug Wire Support Bolt 12 N.m 106 lb in Starter Motor Wiring Harness/Transmission Cooler Pipe Bracket to Oil Pan Bolt 9 N.m 80 lb in Throttle Body Stud 9 N.m 80 lb in Torque Converter Bolt 63 N.m 47 lb ft Transmission Bolt 50 N.m 37 lb ft Transmission Cover Bolt 12 N.m 106 lb in Transmission Oil Cooler Line Bracket 9 N.m 80 lb in Transmission to Oil Pan Bolt 47 N.m 35 lb ft Upper Intake Manifold Stud  First Pass 5 N.m 44 lb in  Final Pass 9 N.m 80 lb in Valve Lifter Pushrod Guide Bolt 16 N.m 12 lb ft Valve Rocker Arm Bolt 30 N.m 22 lb ft Valve Rocker Arm Cover Bolt 12 N.m 106 lb in Water Outlet Stud 25 N.m 18 lb ft Water Pump Bolt 45 N.m 33 lb ft Application Specification Metric English General  Engine Type 90 degree V6  Displacement 4.3 L 262 CID  RPO LU3  VIN X  Bore 101.60 mm 4.012 in  Stroke 88.39 mm 3.480 in  Compression Ratio 9.2:1  Firing Order 1-6-5-4-3-2  Spark Plug Gap 1.52 mm 0.060 in 2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

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2006 Chevrolet Express 3500 Service & Repair Manual

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