1990-1993 Cadillac DeVille Thermostat Torque Specs

4.5L V8

Applies to 1990, 1991, 1992, and 1993 Cadillac DeVille

Labor Time:1 hours

🔧 Torque Values6 specifications

Component	lb-ft	Nm	Notes
Bleed Screw	5	7	Open during fill
Coolant Hose Clamps	3	4	—
Hose Clamps	3	4	—
⚠️ Housing Bolts	10	14	—
⚠️ Pump Bolts	18	24	—
⚠️ Thermostat Housing Bolts	10	14	Clean mating surfaces

⚠️ = 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

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

1995-1999 2.0L Turbo I4

The primary torque specification for thermostat on a 1990-1993 Cadillac DeVille is 7 Nm (5 lb-ft). Note: Open during fill

There are 6 torque specifications for thermostat on the 1990-1993 Cadillac DeVille 4.5L V8, covering all related fasteners and components.