1990-1998 Buick Skylark Heater Core Torque Specs

3.1L V6

Applies to 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, and 1998 Buick Skylark

Labor Time:6 hours

🔧 Torque Values5 specifications

Component	lb-ft	Nm	Notes
Cover Screws	8	11	—
Hose Clamps	3	4	—
⚠️ Housing Bolts	10	14	—
Mounting Bolts	20	27	—
⚠️ Pump Bolts	18	24	—

⚠️ = 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 heater core on a 1990-1998 Buick Skylark is 11 Nm (8 lb-ft).

There are 5 torque specifications for heater core on the 1990-1998 Buick Skylark 3.1L V6, covering all related fasteners and components.