2009 Hummer H3 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Fastener Tightening Specifications

Application Specification
Metric English
Accelerator Pedal Position (APP) Sensor Mounting Nut 9 N.m 80 lb in
Air Cleaner Assembly Bolt 10 N.m 89 lb in
Air Cleaner Assembly Nut 15 N.m 11 lb ft
Air Cleaner Outlet Duct Clamp 6 N.m 53 lb in
Air Cleaner Resonator Bolt 6 N.m 53 lb in
Air Cleaner Resonator Outlet Duct Clamp 6 N.m 53 lb in
Camshaft Position (CMP) Actuator Solenoid Valve Bolt 10 N.m 89 lb in
Camshaft Position (CMP) Sensor Bolt 10 N.m 89 lb in
Crankshaft Position (CKP) Sensor Bolt 10 N.m 89 lb in
Engine Coolant Temperature (ECT) Sensor 14 N.m 124 lb in
Evaporative Emission (EVAP) Canister Bolt 25 N.m 18 lb ft
Evaporative Emission (EVAP) Canister Purge Solenoid Valve Bolt 10 N.m 89 lb in
Fuel Filler Hose Clamp 2.5 N.m 22 lb in
Fuel Filler Hose Ground Strap Bolt 9 N.m 80 lb in
Fuel Filler Hose Screw 2 N.m 18 lb in
Fuel Pressure Regulator Screw 8 N.m 71 lb in
Fuel Rail Bolt 10 N.m 89 lb in
Fuel Tank Strap Bolt 32 N.m 24 lb ft
Heated Oxygen Sensor (HO2S) 42 N.m 31 lb ft
Ignition Coil Bolt 10 N.m 89 lb in
Knock Sensor (KS) Bolt 25 N.m 18 lb ft
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Screw 1.5 N.m 13 lb in
Secondary Air Injection (AIR) Check Valve Stud 25 N.m 18 lb ft
Secondary Air Injection (AIR) Pump Nut 9 N.m 80 lb in
Spark Plug 18 N.m 13 lb ft
Throttle Control Module Bolt 10 N.m 89 lb in
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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