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Engine Controls and Fuel - 4.3L (LV1 LV3) - Specifications: Specifications GMC Sierra III

Ignition System Specifications

ApplicationSpecification
Ignition TypeIndividual Ignition Coils
Firing Order1-6-5-4-3-2
Spark Plug Wire Resistance170-220 ohms per 25.4 mm (1.0 in)
Spark Plug TorqueRefer to Fastener Tightening Specifications
Spark Plug GapRefer to Engine Mechanical Specifications
Spark Plug TypeRefer to Electronic Parts Catalog

Ignition System Specifications

Fastener Tightening Specifications

ApplicationSpecifications
MetricEnglish
Accelerator Pedal Bolt9 N.m80 lb in
Air Cleaner Bracket Bolts9 N.m80 lb in
Air Cleaner Housing Screw3 N.m27 lb in
Camshaft Position (CMP) Sensor Bolt10 N.m89 lb in
Crankshaft Position (CKP) Sensor Bolt10 N.m89 lb in
Camshaft Position (CMP) Actuator Fasteners10 N.m89 lb in
Engine Coolant Temperature (ECT) Sensor20 N.m15 lb ft
Evaporative Emission (EVAP) Canister Nut25 N.m18 lb ft
Evaporative Emission (EVAP) Canister Purge Solenoid Valve Fastener10 N.m89 lb in
Fuel Feed Intermediate Pipe Bolt10 N.m89 lb in
Fuel Feed Intermediate Pipe Fitting28 N.m21 lb ft
Fuel Pressure Sensor15 N.m11 lb ft
Fuel Pump Bolt25 N.m18 lb ft
Fuel Pump Power Control Module Bolt9 N.m80 lb in
Fuel Injection Fuel Rail Bolt25 N.m18 lb ft
Fuel Injection Fuel Rail Fuel Pressure Sensor33 N.m24 lb ft
Fuel Tank Fill Pipe Ground Wire Bolt9 N.m80 lb in
Fuel Tank Filler Housing to Body Screw2.3 N.m20 lb in
Fuel Tank Filler Housing to Fuel Tank Fill Pipe Bolt2.3 N.m20 lb in
Fuel Tank Fill Clamp4 N.m35 lb in
Fuel Tank Shield Bolt12 N.m106 lb in
Fuel Tank Strap Bolt40 N.m30 lb ft
Heated Oxygen Sensor (HO2S)42 N.m31 lb ft
Ignition Coil Bolt10 N.m89 lb in
Knock Sensor (KS) Bolt25 N.m18 lb ft
Manifold Absolute Pressure Sensor Fastener4.5 N.m40 lb in
Knock Sensor (KS) Shield Fastener25 N.m18 lb ft
Mass Air Flow (MAF) Sensor Bolt1.5 N.m13 lb in
Spark Plug20 N.m15 lb ft
Throttle Body Bolt/Nut10 N.m89 lb in
Vacuum Pump Fastener25 N.m18 lb ft

Fastener Tightening Specifications