2014-2018 GMC Sierra 1500 Flex Pipe Torque Specs

5.3L V8

Applies to 2014, 2015, 2016, 2017, and 2018 GMC Sierra 1500

Labor Time:2 hours

Torque Values (16 specifications)

Component	Nm	lb-ft	Notes
Cover Screws	14	10	—
Cover Screws	14	10	—
Exhaust Clamps	55	41	—
Exhaust Clamps	55	41	—
Flange Bolts	45	33	—
Flange Bolts	45	33	—
Hanger Bolts	26	19	—
Hanger Bolts	26	19	—
Heat Shield Bolts	16	12	—
Heat Shield Bolts	16	12	—
⚠️ Manifold Nuts	42	31	Apply anti-seize
Manifold Nuts	42	31	Apply anti-seize
Mounting Bolts	34	25	—
Mounting Bolts	34	25	—
⚠️ O2 Sensor	60	44	Apply anti-seize to threads
O2 Sensor	60	44	Apply anti-seize to threads

The primary torque specification for flex pipe on a 2014-2018 GMC Sierra 1500 is 14 Nm (10 lb-ft).

There are 16 torque specifications for flex pipe on the 2014-2018 GMC Sierra 1500 5.3L V8, covering all related fasteners and components.