2009 Hummer H3T AlphaFACTORY OEM SERVICE PROCEDURE

Fastener Tightening Specifications

Application Specifications
Metric English
Accelerator Pedal Position (APP) Sensor Nut 9 N.m 80 lb in
Air Cleaner Housing Integral Bolt 15 N.m 11 lb ft
Air Cleaner Outlet Duct Clamp 3.5 N.m 31 lb in
Camshaft Position (CMP) Sensor/Wire Harness Bolt 12 N.m 106 lb in
Crankshaft Position (CKP) Sensor Bolt 25 N.m 18 lb ft
Engine Coolant Temperature (ECT) Sensor 20 N.m 15 lb ft
Engine Wiring Harness Bracket Nut 9 N.m 80 lb in
Evaporative Emission (EVAP) Canister Bolt 25 N.m 18 lb ft
Fuel Feed and EVAP Line Bracket Bolt 10 N.m 89 lb in
Fuel Feed Line to Fuel Tank Module Fitting 30 N.m 22 lb ft
Fuel Fill Hose Clamp 2.5 N.m 22 lb in
Fuel Fill Pipe Bracket Nut 10 N.m 89 lb in
Fuel Fill Hose Ground Strap Bolt 9 N.m 80 lb in
Fuel Pipe Bracket Bolt 4.5 N.m 40 lb in
Fuel Pipe Bracket to Transmission Stud Nut 9 N.m 80 lb in
Fuel Rail Bolt 10 N.m 89 lb in
Fuel Rail Retainer Clip Screw 3.8 N.m 34 lb in
Fuel Tank Shield 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 8 N.m 71 lb in
Knock Sensor (KS) Bolt 20 N.m 15 lb ft
Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor Screw 1.5 N.m 13 lb in
Spark Plug 20 N.m 15 lb ft
Throttle Body Bolt 10 N.m 89 lb in
Factory Service Tools

Use the Manual With the Right Hardware

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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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