GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Savana 🢒 Preface 🢒 Cautions and Notices 🢒 Fastener Tightening Specifications

Fastener Tightening Specifications G

Application

Specification

Metric

English

Accessory/Engine Lift Bracket Nut and Bolts

50 N·m

37 lb ft

Bell Housing Bolts

40 N·m

30 lb ft

Camshaft Gear Bolt

170 N·m

125 lb ft

Camshaft Thrust Bearing Bolts

25 N·m

18 lb ft

Connecting Rod Cap Nuts

65 N·m

48 lb ft

Coolant Crossover Bolts/Studs

42 N·m

31 lb ft

Coolant Drain Plugs

25 N·m

18 lb ft

Crankshaft Balancer Bolt

270 N·m

200 lb ft

Crankshaft Bearing Cap Bolts

  • (Inner Bolts-12 mm) First Pass

75 N·m

55 lb ft

  • (Inner Bolts-12 mm) Second Pass

75 N·m

55 lb ft

  • (Inner Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-12 mm) First Pass

20 N·m

15 lb ft

  • (Outer Bolts-12 mm) Second Pass

20 N·m

15 lb ft

  • (Outer Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-10 mm)

40 N·m

30 lb ft

Crankshaft Pulley Bolts

50 N·m

37 lb ft

Crankshaft Sensor Bolt

23 N·m

17 lb ft

Cylinder Head Bolts

  • First Pass

25 N·m

20 lb ft

  • Second Pass

75 N·m

55 lb ft

  • Third Pass

75 N·m

55 lb ft

  • Final Pass

+ 90 Degrees

Exhaust Manifolds Bolts

35 N·m

26 lb ft

Exhaust Pipe Clamps

10 N·m

90 lb in

Flexplate or Flywheel Bolts

90 N·m

65 lb ft

Front Cover Bolts

45 N·m

33 lb ft

Fuel Injection Pump Gear Retaining Bolts

25 N·m

20 lb ft

Fuel Injection Pump Nuts

40 N·m

30 lb ft

Glow Plugs

17 N·m

13 lb ft

Injection Line Fittings

36 N·m

28 lb ft

Injection Nozzle

80 N·m

59 lb ft

Intake Center Manifold Bolts

23 N·m

17 lb ft

Intake Manifold Bolts/Studs

42 N·m

31 lb ft

Oil Cooler Line Fittings

75 N·m

55 lb ft

Oil Fill Neck Nuts

23 N·m

17 lb ft

Oil Filter Adapter Bolt

63 N·m

47 lb ft

Oil Gallery Plugs

34 N·m

25 lb ft

Oil Level Indicator Tube Bracket Bolt

4 N·m

36 lb in

Oil Pan (All Except Rear Two Bolts)

10 N·m

89 lb in

Oil Pan (Rear Two Bolts)

23 N·m

17 lb ft

Oil Pan Drain Plug

25 N·m

18 lb ft

Oil Pressure Switch

12 N·m

9 lb ft

Oil Pump Bolt

90 N·m

65 lb ft

Oil Pump Cover Screws

16 N·m

12 lb ft

Oil Pump Driver Clamp Bolt

42 N·m

31 lb ft

Thermostat Housing Bolts/Studs

47 N·m

31 lb ft

Turbocharger Mounting Bolts

65 N·m

48 lb ft

Upper Intake Manifold To Intake Manifold Bolts

23 N·m

17 lb ft

Valve Lifter Guide Plate Clamp Bolts

27 N·m

20 lb ft

Valve Rocker Arm Cover Bolts

27 N·m

20 lb ft

Valve Rocker Arm Shaft Bolts

55 N·m

40 lb ft

Water Pump Plate to Front Cover Bolts

28 N·m

20 lb ft

Water Pump Plate to Water Pump Bolts

28 N·m

20 lb ft

Water Pump to Front Cover Bolts

42 N·m

32 lb ft

Fastener Tightening Specifications C3500HD

Application

Specification

Metric

English

Accessory/Engine Lift Bracket Nut and Bolts

50 N·m

37 lb ft

Bell Housing Bolts

40 N·m

30 lb ft

Camshaft Gear Bolt

170 N·m

125 lb ft

Camshaft Thrust Plate Bolts

25 N·m

17 lb ft

Connecting Rod Cap Nuts

65 N·m

48 lb ft

Coolant Crossover Bolts/Studs

42 N·m

31 lb ft

Coolant Drain Plugs

25 N·m

18 lb ft

Crankshaft Balancer Bolt

270 N·m

200 lb ft

Crankshaft Bearing Cap Bolts

  • (Inner Bolts-12 mm) First Pass

75 N·m

55 lb ft

  • (Inner Bolts-12 mm) Second Pass

75 N·m

55 lb ft

  • (Inner Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-12 mm) First Pass

20 N·m

15 lb ft

  • (Outer Bolts-12 mm) Second Pass

20 N·m

15 lb ft

  • (Outer Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-10 mm) Single Pass

40 N·m

30 lb ft

Crankshaft Pulley Bolts

50 N·m

37 lb ft

Crankshaft Sensor Bolt

23 N·m

17 lb ft

Cylinder Head Bolts

  • First Pass

25 N·m

20 lb ft

  • Second Pass

75 N·m

55 lb ft

  • Third Pass

75 N·m

55 lb ft

  • Final Pass

+ 90 Degrees

Exhaust Manifolds Bolts

35 N·m

26 lb ft

Flywheel Bolts

90 N·m

65 lb ft

Front Cover Bolts

45 N·m

33 lb ft

Fuel Filter Mount Bolts

42 N·m

31 lb ft

Fuel Filter Water Drain Valve Stud

41 N·m

31 lb ft

Fuel Injection Line Fittings to Fuel Injection Nozzles

33 N·m

24 lb ft

Fuel Injection Line Fittings to Fuel Injection Pump

33 N·m

24 lb ft

Fuel Injection Nozzles

80 N·m

59 lb ft

Fuel Injection Pump Gear Retaining Bolts

25 N·m

20 lb ft

Fuel Injection Pump Nuts

40 N·m

30 lb ft

Glow Plugs

22 N·m

16 lb ft

Intake Manifold Bolts/Studs

42 N·m

31 lb ft

Oil Cooler Line Fittings

75 N·m

55 lb ft

Oil Fill Neck Nuts

23 N·m

17 lb ft

Oil Filter Adapter Bolt

63 N·m

47 lb ft

Oil Gallery Plugs

34 N·m

25 lb ft

Oil Level Indicator Tube Bracket Bolt

4 N·m

35 lb in

Oil Pan (All Except Rear Two Bolts)

10 N·m

89 lb in

Oil Pan (Rear Two Bolts)

23 N·m

17 lb ft

Oil Pan Drain Plug

25 N·m

18 lb ft

Oil Pressure Switch

12 N·m

9 lb ft

Oil Pump Bolt

90 N·m

65 lb ft

Oil Pump Cover Screws

16 N·m

12 lb ft

Oil Pump Driver Clamp Bolt

42 N·m

31 lb ft

Thermostat Housing Bolts/Studs

47 N·m

35 lb ft

Turbocharger Connector Hose Clamps

6 N·m

50 lb in

Turbocharger Exhaust Manifold Mounting Nuts

58 N·m

43 lb ft

Turbocharger Long Brace Bolt

50 N·m

37 lb ft

Turbocharger Long Brace Nut

34 N·m

26 lb ft

Turbocharger Oil Feed Line Fittings

28 N·m

21 lb ft

Turbocharger Oil Return Pipe Bolts

26 N·m

19 lb ft

Turbocharger Short Brace Bolts

25 N·m

18 lb ft

Upper Intake Connector Hose Clamps

6 N·m

50 lb in

Upper Intake Manifold to Intake Manifold Bolts

23 N·m

17 lb ft

Valve Lifter Guide Plate Clamp Bolts

27 N·m

20 lb ft

Valve Rocker Arm Cover Bolts

27 N·m

20 lb ft

Valve Rocker Arm Shaft Bolts

55 N·m

40 lb ft

Water Pump Plate to Coolant Pump Bolts

28 N·m

20 lb ft

Water Pump Plate to Front Cover Bolts

28 N·m

20 lb ft

Water Pump to Front Cover Bolts

42 N·m

32 lb ft

Application

Specification

Metric

English

Battery Negative Cable/Ground Strap to Engine Block Bolts

25 N·m

18 lb ft

Bell Housing Bolts

40 N·m

30 lb ft

Boost Sensor Bolts

3.5 N·m

27 lb in

Camshaft Gear Bolt

170 N·m

125 lb ft

Camshaft Thrust Bearing Bolts

25 N·m

18 lb ft

Coolant Drain Plugs

25 N·m

18 lb ft

Crankshaft Balancer Bolt

270 N·m

200 lb ft

Crankshaft Pulley Bolts

50 N·m

37 lb ft

Crankshaft Sensor Bolt

23 N·m

17 lb ft

Cylinder Head Bolts

  • First Pass

25 N·m

20 lb ft

  • Second Pass

75 N·m

55 lb ft

  • Third Pass

75 N·m

55 lb ft

  • Final Pass

+ 90 Degrees

Drive Belt Idler Pulleys Bolt

50 N·m

37 lb ft

Drive Belt Tensioner Bolt

50 N·m

37 lb ft

Engine Lift Bracket Nut and Bolts

50 N·m

37 lb ft

Engine Mount Bracket to Engine Block Bolts

54 N·m

40 lb ft

Engine Mount Through - Bolt

68 N·m

50 lb ft

Engine Mount to Frame Bracket Bolts

59 N·m

44 lb ft

Engine Oil Cooler Pipe Retainer Bracket Bolt

12 N·m

106 lb in

Engine Wiring Harness Bracket Bolt

23 N·m

17 lb ft

Exhaust Manifolds Bolts

35 N·m

26 lb ft

Exhaust Pipe Clamps

10 N·m

90 lb in

Exhaust Pipe to Turbocharger Bolts

35 N·m

16 lb ft

Flexplate Bolt to Torque Converter

63 N·m

46 lb ft

Flexplate or Flywheel Bolts

90 N·m

65 lb ft

Front Cover Bolts

45 N·m

33 lb ft

Fuel Injection Pump Gear Retaining Bolts

25 N·m

20 lb ft

Fuel Injection Pump Nuts

40 N·m

30 lb ft

Generator Support Bracket Bolt

25 N·m

18 lb ft

Glow Plug Power Supply Terminal Nuts

5 N·m

44 lb in

Glow Plug Relay Mount Nuts

42 N·m

37 lb ft

Idle Air Temperature (IAT) Sensor

25 N·m

18 lb ft

Lower Intake Manifold Studs

42 N·m

31 lb ft

Oil Cooler Line Fittings

75 N·m

55 lb ft

Oil Fill Neck Nuts

23 N·m

17 lb ft

Oil Filter Adapter Fitting

27 N·m

20 lb ft

Oil Gallery Plugs

34 N·m

25 lb ft

Oil Level Indicator Lower Tube Bracket Bolt

4 N·m

36 lb in

Oil Level Indicator Upper Tube Bracket Nut

22 N·m

16 lb ft

Oil Pan (All Except Rear Two Bolts)

10 N·m

89 lb in

Oil Pan (Rear Two Bolts)

23 N·m

17 lb ft

Oil Pan Drain Plug

25 N·m

18 lb ft

Oil Pump Bolt

90 N·m

65 lb ft

Oil Pump Driver Clamp Bolt

42 N·m

31 lb ft

Starter Motor Bolts

45 N·m

33 lb ft

Thermostat Crossover Bolts/Studs

42 N·m

31 lb ft

Thermostat Housing Bolts/Studs

47 N·m

31 lb ft

Torque Converter Cover Bolts

33 N·m

24 lb ft

Transmisson Fluid Tube to Engine Bolt

10 N·m

89 lb in

Transmission to Engine Bolts

47 N·m

34 lb ft

Turbocharger Heat Shield Center Bolt and Nut

22 N·m

17 lb ft

Turbocharger Heat Shield Right Bolt and Nut

30 N·m

20 lb ft

Turbocharger Heat Shield Top Bolt and Nut

30 N·m

20 lb ft

Turbocharger Mounting Bolts

65 N·m

48 lb ft

Upper Intake Manifold To Intake Manifold Bolts

23 N·m

17 lb ft

Valve Lifter Guide Plate Clamp Bolts

27 N·m

20 lb ft

Valve Rocker Arm Cover Bolts

27 N·m

20 lb ft

Valve Rocker Arm Shaft Bolts

55 N·m

40 lb ft

Wastegate Solenoid Bolt

3.5 N·m

27 lb in

Water Pump to Front Cover Bolts

42 N·m

32 lb ft