1990-1998 Buick Skylark Coolant Service Torque Specs

2.3L I4

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

Labor Time:1 hours

🔧 Torque Values7 specifications

Component	lb-ft	Nm	Notes
Bleed Screw	5	7	Open during fill
Bracket Bolts	15	20	—
Connector Bolts	5	7	—
Cover Screws	8	11	—
Drain Petcock	5	7	Hand tight
Mounting Bolts	20	27	—
Sensor Bolts	8	11	—

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

1990-1997 4.6L V8 Modular

2007-2012 3.7L I5

2011-2016 6.7L V8 Power Stroke Diesel

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

1995-1999 2.0L Turbo I4

The primary torque specification for coolant service on a 1990-1998 Buick Skylark is 7 Nm (5 lb-ft). Note: Open during fill

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