Flex Pipe Torque Specifications

1990-1998 Buick Skylark 2.3L I4

Labor Time:1.5 hours

🔧 Torque Values7 specifications

Component	lb-ft	Nm	Notes
Cover Screws	8	11	—
⚠️ Flange Bolts	35	47	Apply anti-seize
Hanger Bolts	15	20	—
Heat Shield Bolts	10	14	—
⚠️ Manifold Nuts	25	34	Apply anti-seize
Mounting Bolts	20	27	—
⚠️ O2 Sensor	35	47	Apply anti-seize to threads

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

⚠️ Some critical specs are estimated. Please verify sequence.

1990-1997 4.6L V8 Modular

2007-2012 3.7L I5

2011-2016 6.7L V8 Power Stroke Diesel

2022-2024 GT-Line Dual Motor AWD

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

The primary torque specification for flex pipe on a 1990-1998 Buick Skylark is 11 Nm (8 lb-ft).

There are 7 torque specifications for flex pipe on the 1990-1998 Buick Skylark 2.3L I4, covering all related fasteners and components.