Home/Torque Specs/GMC/Sonoma/1990-2004 4.3L V6 Vortec/O2 Sensor - Downstream

O2 Sensor - Downstream Torque Specifications

1990-2004 GMC Sonoma 4.3L V6 Vortec

Labor Time:0.5 hours

🔧 Torque Values6 specifications

Component	lb-ft	Nm	Notes
⚠️ Flange Bolts	40	54	Apply anti-seize
Hanger Bolts	17	23	—
Heat Shield Bolts	12	16	—
⚠️ Manifold Nuts	29	39	Apply anti-seize
Mounting Bolts	20	27	—
⚠️ O2 Sensor	40	54	Apply anti-seize to threads

⚠️ = Critical torque value | Always verify with vehicle-specific service manual

⚠️ Some critical specs are estimated. Please verify sequence.

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Common Questions

What is the torque spec for o2 sensor - downstream on a 1990-2004 GMC Sonoma?

The primary torque specification for o2 sensor - downstream on a 1990-2004 GMC Sonoma is 54 Nm (40 lb-ft). Note: Apply anti-seize

How many torque specs are there for GMC Sonoma o2 sensor - downstream?

There are 6 torque specifications for o2 sensor - downstream on the 1990-2004 GMC Sonoma 4.3L V6 Vortec, covering all related fasteners and components.

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