GM Service Manual Online
For 1990-2009 cars only

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

A/C Compressor Mounting Bolts

50 N·m

37 lb ft

Battery Negative Cable to Engine Bolt

25 N·m

18 lb ft

Camshaft Gear Bolt

170 N·m

125 lb ft

Camshaft Thrust Plate Bolts

25 N·m

17 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 Pulley Bolt

83 N·m

61 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 to Engine Bolts

54 N·m

40 lb ft

Engine Mount to Frame Bolts

59 N·m

44 lb ft

Engine Mount to Frame Nut

45 N·m

33 lb ft

Engine Mount Through-Bolt

68 N·m

50 lb ft

Engine Oil Cooler Bracket Bolt

9 N·m

80 lb in

Engine Oil Cooler Retainer Bolt

6 N·m

53 lb in

Exhaust Manifold Pipe to Turbocharger Clamp

6 N·m

106 lb in

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 Injection Line Fittings to Fuel Injection Pump

33 N·m

24 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

Ground Wire to Intake Stud Nuts

25 N·m

18 lb ft

Heater Hose Bracket Nuts

30 N·m

22 lb ft

Lower 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

Contact +1 to 1¼ Turn

Oil Filter Adapter Fitting

27 N·m

20 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 Pump Bolt

90 N·m

65 lb ft

Oil Pump Driver Clamp Bolt

42 N·m

31 lb ft

Thermostat Housing Bolts/Studs

47 N·m

35 lb ft

Torque Converter Bolts

60 N·m

44 lb in

Torque Converter Cover Bolts

33 N·m

24 lb in

Turbocharger Connector Hose Clamps

6 N·m

50 lb in

Turbocharger Exhaust Manifold Mounting Nuts

58 N·m

43 lb ft

Turbocharger Heat Shield to Bracket Bolts

6 N·m

53 lb in

Turbocharger Long Brace Bolt

50 N·m

37 lb ft

Turbocharger Long Brace Nut

34 N·m

26 lb ft

Turbocharger Oil Supply Hose 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

Vacuum Pump Mount Bolts

25 N·m

18 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