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Engine Controls and Fuel - 4.4L - Introduction: Specifications Cadillac STS I facelift

Testing & Diagnostics 17 illustrations

Ignition System Specifications

ApplicationSpecification
MetricEnglish
Ignition TypeModule/Coil Per Cylinder
Firing Order1-2-7-3-4-5-6-8
Spark Plug Torque15N.m11 lb ft
Spark Plug Gap1.02 mm0.040 in
Spark Plug TypeGM 12592619
Initial spark plug torque on a new cylinder head is 20 N.m (15 lb ft)

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Accelerator Pedal Position (APP) Sensor Mounting Nut9 N.m80 lb in
Accelerator Pedal Position (APP) Sensor Bracket Nuts9 N.m80 lb in
Air Cleaner Assembly Bolts10 N.m89 lb in
Air Cleaner Assembly Cover Screws3 N.m27 lb in
Air Cleaner Outlet Duct Clamps3 N.m27 lb in
Camshaft Position (CMP) Actuator Solenoid Bolt8 N.m71 lb in
Camshaft Position (CMP) Sensor Bolt10 N.m89 lb in
Crankshaft Position (CKP) Sensor Bolt10 N.m89 lb in
Engine Control Module (ECM) Nut8 N.m71 lb in
Engine Coolant Temperature (ECT) Sensor20 N.m15 lb ft
Evaporative Emission (EVAP) Canister Nut6 N.m53 lb in
Evaporative Emission (EVAP) Canister Purge Valve Bolt12 N.m106 lb in
Fuel Filler Tube Bolt3.5 N.m31 lb in
Fuel Filler Tube Brace Bolt9 N.m80 lb in
Fuel Filler Tube Hose Clamp3.5 N.m31 lb in
Fuel Filter Bracket Bolt9 N.m80 lb in
Fuel Rail Stud10 N.m89 lb in
Fuel Tank Strap Bolt50 N.m37 lb ft
Heated Oxygen Sensor (HO2S)42 N.m31 lb ft
Ignition Coil Bolt10 N.m89 lb in
Ignition Coil Assembly Bolt/Stud10 N.m89 lb in
Intake Air Temperature (IAT) Sensor 220 N.m15 lb in
Knock Sensor (KS) Bolt20 N.m15 lb ft
Lower Shock Bolt150 N.m111 lb ft
Mass Air Flow Sensor Screw4 N.m35 lb in
Rear Frame Bolt265 N.m195 lb ft
Rear Suspension Bracket Brace Bolt160 N.m118 lb ft
Rear Suspension Bracket Brace Nut85 N.m63 lb ft
Spark Plug20 N.m15 lb ft
Supercharger Bypass Regulator Solenoid Valve Bracket Bolt9 N.m80 lb in
Supercharger Bypass Valve Actuator Bolts10 N.m89 lb in
Supercharger Bypass Valve Actuator Cable Bracket Bolts10 N.m89 lb in
Supercharger Inlet Duct Ball studs10 N.m89 lb in
Supercharger Inlet Duct Seal Screw Clamp2.5 N.m20 lb in
Throttle Body Bolt10 N.m89 lb in
Transmission Support Bolt60 N.m44 lb ft

Scheme 100

Scheme 100: Evaporative Emissions Hose Routing Diagram
CalloutComponent Name
1EVAP Canister Purge Solenoid Valve
2EVAP Canister
3Fuel Fill Neck/Fill Cap
4Rollover Valve/Fuel Tank Pressure (FTP) Sensor
5Fuel Tank
6EVAP Canister Vent Solenoid Valve
7Vent Hose/Pipe
8EVAP Vapor Pipe
9EVAP Purge Pipe
10EVAP Service Port

Scheme 101

Scheme 101: Fuel Hose/Pipes Routing Diagram
CalloutComponent Name
1Jet Pump and Fuel Sender Assembly
2Fuel Pump and Fuel Sender Assembly
3Fuel Feed Hose
4Fuel Feed Pipe
5Fuel Rail and Injectors
6Fuel Pressure Test Connection
7Fuel Filter
8Fuel Return Hose
9Fuel Filler Tube
10Fuel Tank Pressure (FTP) Sensor
11Fuel Level Vent Valve (FLVV)
12Fuel Tank

Scheme 102

Scheme 102: Engine Controls Schematics

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