1990-1993 GMC Sonoma Muffler Torque Specs

2.8L V6

Applies to 1990, 1991, 1992, and 1993 GMC Sonoma

Labor Time:1 hours

Torque Values (6 specifications)

Component	Nm	lb-ft	Notes
⚠️ Clamp Bolts	54	40	—
⚠️ Flange Bolts	41	30	Apply anti-seize
Hanger Bolts	20	15	—
Heat Shield Bolts	14	10	—
⚠️ Manifold Nuts	35	26	Apply anti-seize
⚠️ O2 Sensor	50	37	Apply anti-seize to threads

The primary torque specification for muffler on a 1990-1993 GMC Sonoma is 54 Nm (40 lb-ft).

There are 6 torque specifications for muffler on the 1990-1993 GMC Sonoma 2.8L V6, covering all related fasteners and components.