engine

Turbocharger Torque Specs

for 2012 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · 4WD

Units

14 fasteners

Seq

Component

Torque

Angle

—

Coolant Line Fittings

11 lb-ft · 15 Nm

—

Cover Bolts

16 lb-ft · 22 Nm

—

Electrical Connector Bolts

7 lb-ft · 9 Nm

—

Exhaust Manifold Nuts

Critical

Apply anti-seize, work hot-to-cold

22 lb-ft · 30 Nm

—

Gasket Bolts

Critical

15 lb-ft · 20 Nm

—

Gasket Surface Bolts

Critical

Clean mating surfaces

20 lb-ft · 27 Nm

—

Heat Shield Bolts

7 lb-ft · 10 Nm

—

Mounting Bolts

Critical

47 lb-ft · 64 Nm

—

Oil Feed Line

Critical

Use new crush washers

15 lb-ft · 20 Nm

—

Oil Return Line

7 lb-ft · 10 Nm

—

Sensor Bolts

8 lb-ft · 11 Nm

—

Sensor Mounting Bolts

11 lb-ft · 15 Nm

—

Turbo-to-Downpipe Bolts

Critical

33 lb-ft · 45 Nm

—

Turbo-to-Manifold Bolts

Critical

Apply anti-seize

26 lb-ft · 35 Nm

—

2012 GMC SIERRA 2500HD

14 fasteners