O2 Sensor - Downstream Torque Specifications

2002-2009 GMC Envoy 4.2L I6

Labor Time:0.5 hours

Torque Values (20 specifications)

Component	Nm	lb-ft	Notes
⚠️ Flange Bolts	47	35	—
⚠️ Flange Bolts	47	35	Apply anti-seize
Flange Bolts	47	35	—
Flange Bolts	47	35	Apply anti-seize
Hanger Bolts	20	15	—
Hanger Bolts	20	15	—
Hanger Bolts	20	15	—
Hanger Bolts	20	15	—
Heat Shield Bolts	14	10	—
Heat Shield Bolts	14	10	—
Manifold Nuts	34	25	Apply anti-seize
⚠️ Manifold Nuts	34	25	Apply anti-seize
Mounting Bolts	27	20	—
Mounting Bolts	27	20	—
⚠️ O2 Sensor	47	35	Anti-seize threads
⚠️ O2 Sensor	47	35	Apply anti-seize to threads
O2 Sensor	47	35	—
O2 Sensor	47	35	Apply anti-seize to threads
O2 Sensor	47	35	Anti-seize threads
⚠️ O2 Sensor	47	35	—

The primary torque specification for o2 sensor - downstream on a 2002-2009 GMC Envoy is 47 Nm (35 lb-ft).

There are 20 torque specifications for o2 sensor - downstream on the 2002-2009 GMC Envoy 4.2L I6, covering all related fasteners and components.