engine

Intake Manifold Torque Specs

for 2021 GMC Sierra 1500 3.0L I6 Duramax Diesel · RWD

Units

9 fasteners

Seq

Component

Torque

Angle

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Cover Bolts

13 lb-ft · 18 Nm

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Electrical Connector Bolts

5 lb-ft · 7 Nm

—

Fuel Rail Bolts

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

9 lb-ft · 12 Nm

—

Gasket Surface Bolts

Clean mating surfaces

16 lb-ft · 22 Nm

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Intake Manifold Bolts

Tighten in sequence from center out | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

18 lb-ft · 25 Nm

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Mounting Bolts

37 lb-ft · 50 Nm

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PCV Valve

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

6 lb-ft · 8 Nm

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Sensor Mounting Bolts

8 lb-ft · 11 Nm

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Throttle Body Bolts

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

7 lb-ft · 10 Nm

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