2003-2024 Chevrolet Express Muffler Torque Specs

4.3L V6

Applies to 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, and 2024 Chevrolet Express

Labor Time:1.2 hours

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Torque Values (12 specifications)

Component	Nm	lb-ft	Notes
Clamp Bolts	54	40	—
⚠️ Clamp Bolts	54	40	—
Flange Bolts	41	30	Apply anti-seize
⚠️ Flange Bolts	41	30	Apply anti-seize
Hanger Bolts	20	15	—
Hanger Bolts	20	15	—
Hanger Bracket Bolts	25	18	—
Hanger Bracket Bolts	25	18	—
Muffler Clamps	55	41	—
Muffler Clamps	55	41	—
O2 Sensor	47	35	—
⚠️ O2 Sensor	47	35	—

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Common Questions

What is the torque spec for muffler on a 2003-2024 Chevrolet Express?

The primary torque specification for muffler on a 2003-2024 Chevrolet Express is 54 Nm (40 lb-ft).

How many torque specs are there for Chevrolet Express muffler?

There are 12 torque specifications for muffler on the 2003-2024 Chevrolet Express 4.3L V6, covering all related fasteners and components.