GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications Unit Repair

Application

N·m

Lb Ft

Lb In

Accelerator Control Cable Bracket Bolt and Nut

12

--

106

Air Conditioning (A/C) Compressor Mounting Bolt

50

37

--

Belt Idler Pulley Bolt

50

37

--

Camshaft Retainer Bolt

12

--

106

Camshaft Sprocket Bolt

25

18

--

Connecting Rod Nut

  • First Pass

27

20

--

  • Final Pass

55 degrees

Crankshaft Balancer Bolt

95

70

--

Crankshaft Bearing Cap Bolt and Stud (Preferred Method)

  • First Pass (Two Bolt Type Bearing Cap)

20

15

--

  • Final Pass (Two Bolt Type Bearing Cap)

73 degrees

  • First Pass (Four Bolt Type Bearing Cap)

20

15

--

  • Final Pass Outboard Bolt (Four Bolt Type Bearing Cap)

43 degrees

  • Final Pass Inboard Bolt and Stud (Four Bolt Type Bearing Cap)

73 degrees

Crankshaft Bearing Cap Bolt and Stud (Optional Method)

  • Two Bolt Type Bearing Cap

105

77

--

  • Inboard Bolt and Stud (Four Bolt Type Bearing Cap)

105

77

--

  • Outboard Bolt (Four Bolt Type Bearing Cap)

90

66

--

Crankshaft Oil Deflector Nut

40

29

--

Crankshaft Position Sensor Bolt

9

--

80

Crankshaft Pulley Bolt

58

43

--

Crankshaft Rear Oil Seal Housing Nut and Bolt

12

--

106

Crankshaft Rear Oil Seal Housing Retainer Stud

6

--

53

Cylinder Head Bolt (Preferred Method)

  • All Bolts First Pass in Sequence

30

22

--

  • Long Bolt Final Pass in Sequence

75 degrees

  • Medium Bolt Final Pass in Sequence

65 degrees

  • Short Bolt Final Pass in Sequence

55 degrees

Cylinder Head Bolt (Optional On-Vehicle Strategy)

  • First Pass in Sequence

35

26

--

  • Second Pass in Sequence

60

44

--

  • Final Pass in Sequence

90

66

--

Cylinder Head Core Hole Plug

20

15

--

Distributor Cap Bolt

2.4

--

21

Distributor Clamp Bolt

25

18

--

Drive Belt Tensioner

50

37

--

EGR Valve Bolt

  • First Pass

10

--

88

  • Final Pass

30

22

--

EGR Valve Pipe Nut at Intake Manifold

25

18

--

EGR Valve Pipe Nut at Exhaust Manifold

30

22

--

EGR Valve Pipe Clamp Bracket Bolt

25

18

--

Engine Block Coolant Drain Hole Plug

20

15

--

Engine Block Oil Gallery Plug

20

15

--

Engine Coolant Temperature (ECT) Gauge Sensor

20

15

--

Engine Flywheel Bolt

100

74

--

Engine Front Cover Bolt

12

--

106

Engine Lift Bracket Bolt (Special Tool J 41427)

15

11

--

Engine Lift Front Bracket Stud

35

26

--

Engine Mount Bolt (Through-bolt) to Engine Mount Bracket

95

70

--

Engine Mount Bolt to Frame

59

43

--

Engine Mount Bolt (Through-bolt) Nut

68

50

--

Engine Mount Bracket Bolt to Engine

51

38

--

Engine Mount Nut to Frame

45

33

--

Engine Oil Pressure Gauge Sensor Fitting

15

11

--

Engine Wiring Harness Bracket Nut

12

--

106

Exhaust Manifold Bolt

  • First Pass

15

11

--

  • Final Pass

30

22

--

Fan and Water Pump Pulley Bolt

25

18

--

Fuel Pipe Bracket Bolt

6

--

53

Fuel Pipe Retainer Nut

3

--

27

Fuel Pump Switch and Engine Oil Pressure Gauge Sensor

30

22

--

Generator and Drive Belt Tensioner Bracket Bolt and Nut to Engine

41

30

--

Generator and Drive Belt Tensioner Bracket Stud to Engine

20

15

--

Generator Mounting Bolt

50

37

--

Generator Mounting Rear Bracket Bolt to Generator and Drive Belt Tensioner Bracket

50

37

--

Ignition Coil Stud

12

--

106

Knock Sensor

20

15

--

Lower Intake Manifold Bolt

  • First Pass in Sequence

3

--

27

  • Second Pass in Sequence

12

--

106

  • Final Pass in Sequence

15

11

--

Oil Filter Adapter Bolt

25

18

--

Oil Level Indicator Tube Bolt

12

--

106

Oil Pan Drain Plug

25

18

--

Oil Pan Stud

6

--

53

Oil Pan Stud Nut

25

18

--

Oil Pan Bolt or Stud

12

--

106

Oil Pump Bolt to Rear Crankshaft Bearing Cap

90

66

--

Oil Pump Cover Bolt

12

--

106

Power Steering Pump Bolt

50

37

--

Power Steering Pump Bracket Bolt to Engine

41

30

--

Power Steering Pump Bracket Stud to Engine

20

15

--

Power Steering Pump Bracket Stud Nut

41

30

--

Power Steering Pump Nut to Engine

41

30

--

Power Steering Pump Rear Bracket Nut

50

37

--

Spark Plug

  • Initial Installation (NEW Cylinder Head)

30

22

--

  • All Subsequent Installations

15

11

--

Spark Plug Wire Support Bolt

12

--

106

Square Socket Plug (Engine Block Oil Gallery)

20

15

--

Starter Motor Bolt

40

29

--

Starter Motor Shield Bolt

3

--

27

Starter Motor Shield Nut

5

--

44

Transmission Cover Bolt

12

--

106

Upper Intake Manifold Bolt

  • First Pass in Sequence

5

--

44

  • Final Pass in Sequence

10

--

88

Valve Lifter Guide Retainer Bolt

25

18

--

Valve Rocker Arm Cover Bolt

12

--

106

Water Outlet Stud

25

18

--

Water Pump Bolt

45

33

--

Fastener Tightening Specifications On-Vehicle

Application

N·m

Lb Ft

Lb In

Coolant Sensor

20

15

--

Crankshaft Position Sensor Bolt

9

--

80

Front Lift Bracket Stud

40

30

--

Ignition Coil Bolt

11

--

97

Knock Sensor

20

15

--

Oil Filter Bypass Valve Bolt

26

20

--

Oil Level Indicator Tube Bolt

12

--

106

Oxygen Sensor Wire Support Bracket Nut

11

--

97

Spark Plug Wire Support

12

--

106

Starter Motor Bolt

47

35

--

Throttle Body Bolt

8.5

--

75

Throttle Cable Bracket Bolt/Nut

12

--

106

Water Outlet Bolt/Stud

25

18

--

Water Pump Bolt and Stud

41

30

--