2004 GMC Envoy 4WDFACTORY OEM SERVICE PROCEDURE

Fastener Tightening Specifications

Fastener Tightening Specifications

Application Specifications
Metric English
Accelerator Pedal Position (APP) Sensor Bolt 10 N.m 89 lb in
Air Cleaner Cover/Resonator Retaining Screw 4 N.m 35 lb in
Air Cleaner Lower Housing/Washer Solvent Tank Assembly Nut 15 N.m 11 lb ft
Air Cleaner Outlet Duct Clamp 4 N.m 35 lb in
Air Cleaner Outlet Resonator Bolt 6 N.m 53 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 16 N.m 12 lb ft
EVAP Canister Bracket Bolt 20 N.m 15 lb ft
EVAP Canister Purge Solenoid Bracket Bolt 25 N.m 18 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 Pipe Ground Strap Bolt 10 N.m 89 lb in
Fuel Filter Bracket Screw 1.5 N.m 13 lb in
Fuel Pipe Assembly Bracket Bolt 3.75 N.m 33 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) 41 N.m 30 lb ft
Ignition Coil Bolt 10 N.m 89 lb in
Knock Sensor (KS) 25 N.m 18 lb ft
Powertrain Control Module (PCM) Connector End Bolt 8 N.m 71 lb in
Powertrain Control Module (PCM) Mounting Stud 6 N.m 53 lb in
Powertrain Control Module (PCM) Retaining Bolt 10 N.m 89 lb in
Powertrain Control Module (PCM) Retaining Nut 10 N.m 89 lb in
Spark Plug 17-23 N.m 13-16 lb ft
Throttle Body 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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