GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications Car Unit Repair

Application

N·m

Lb Ft

Lb In.

Accelerator Control Cable Bracket Bolt

12

--

106

Camshaft Retainer Bolt

12

--

106

Camshaft Sprocket Bolt

25

18

--

Connecting Rod Nut (First Pass)

27

20

--

Connecting Rod Nut (Final Pass)

55 degrees

Crankshaft Balancer Bolt

85

63

--

Crankshaft Balancer Hub Bolt

100

74

--

Crankshaft Bearing Cap Bolt

105

77

--

Crankshaft Position Sensor Bolt

12

--

106

Crankshaft Rear Oil Seal Housing Nut and Bolt

15

11

--

Crankshaft Rear Oil Seal Housing Stud

4

--

35

Cylinder Head Bolts (First Pass in Sequence)

30

22

--

Cylinder Head Long Bolts (Second Pass in Sequence)

75 degrees

Cylinder Head Medium Bolts (Second Pass in Sequence)

65 degrees

Cylinder Head Short Bolts (Second Pass in Sequence)

55 degrees

Distributor Bolt

12

--

106

Drive Belt Tensioner Bolt

25

18

--

EGR Control Valve Relay Nut

25

18

--

EGR Solenoid Valve Bracket Nut

25

18

--

EGR Valve Nut

30

22

--

EGR Valve Pipe Bolt (at Exhaust Manifold)

30

22

--

EGR Valve Pipe Nut (at Intake Manifold)

25

18

--

EGR Valve Pipe Stud

12

--

106

Engine Block Coolant Drain Plug

20

15

--

Engine Block Oil Gallery Plug

20

15

--

Engine Coolant Air Bleed Pipe Bolt

40

30

--

Engine Coolant Air Bleed Pipe Nut

17

13

--

Engine Front Cover Bolt

12

--

106

Engine Oil Level Sensor

20

15

--

Evaporative Emission Canister Purge Valve Bracket Bolt

6

--

53

Exhaust Manifold Stud and Bolt

40

30

--

Engine Flywheel Bolt

100

74

--

Engine Flywheel Housing Cover Bolt

8.5

--

75

Fuel Injection Fuel Rail Bolt

10

--

89

Fuel Pump Switch and Engine Oil Pressure Gage Sensor

12

--

106

Generator Bracket Bolt

50

37

--

Ignition Coil Studs

40

30

--

Intake Manifold Bolt and Stud (First Pass)

10

--

89

Intake Manifold Bolt and Stud (Final Pass)

50

37

--

Knock Sensor

20

15

--

MAP Sensor Bolt

6

--

53

Oil Filter Adapter Bolt

25

18

--

Oil Filter

20

15

--

Oil Level Indicator Tube Bolt

12

--

106

Oil Pan Corner Bolt Nut or Stud

20

15

--

Oil Pan Side Rail Bolt or Stud

12

--

106

Oil Pan Deflector Nut

40

30

--

Oil Pan Drain Plug

20

15

--

Oil Pressure Fittings (Plus Necessary Alignment)

12

--

106

Oil Pressure Gauge Sensor

12

--

106

Oil Pressure Sensor and Switch

12

--

106

Oil Pump Bolt-to Rear Crankshaft Bearing Cap

90

66

--

Oil Pump Cover Bolt

9

--

80

Oil Pump Driveshaft Bolt

18

13

--

Oil Temperature Sensor

12

--

106

Secondary Air Injection Pipe Fitting-to-Exhaust Manifold

55

41

--

Secondary Air Injection Pump Bracket Bolt

40

30

--

Spark Plugs (Cylinder Head New)

30

22

Spark Plugs (Cylinder Head All Subsequent Installations)

20

15

--

Starter Motor Bolt

47

35

--

Throttle Body Bolt

25

18

--

Transmission Converter Cover Bolts

25

18

--

Valve Lifter Guide Retainer Bolt

25

18

--

Valve Rocker Arm Cover Bolts

12

--

106

Water Pump Bolt and Stud

45

33

--

Water Pump Driveshaft Bearing Retainer Bolt

12

--

106

Fastener Tightening Specifications On-Vehicle

Application

N·m

Lb Ft

Lb In.

Accelerator Control Cable Bracket Bolt

12

--

106

Air Conditioning Compressor Front Mounting Bolt

50

37

--

Air Conditioning Compressor Rear Brace Bolt

25

18

--

Air Cleaner Resonator Bracket Nut

10

--

89

Camshaft Retainer Bolt

12

--

106

Camshaft Sprocket Bolt

25

18

--

Catalytic Converter Support-to-Transmission Bolt

34

26

--

Coolant Fan Pulley Bracket Nut

50

37

--

Connecting Rod Nut (First Pass)

27

20

--

Connecting Rod Nut (Final Pass)

55 degrees

Crankshaft Balancer Bolt

85

63

--

Crankshaft Balancer Hub Bolt

100

74

--

Crankshaft Bearing Cap Bolt and Stud

105

77

--

Crankshaft Pulley Bolt (Vehicles With Mechanical Fan Only) - First Pass

10

--

89

Crankshaft Pulley Bolt (Vehicles With Mechanical Fan Only) - Second Pass

25

18

--

Crankshaft Position Sensor Bolt

12

--

106

Crankshaft Rear Oil Seal Housing Nut and Bolt

15

11

--

Crankshaft Rear Oil Seal Housing Stud

4

--

35

Cylinder Head Bolts (First Pass in Sequence)

30

22

--

Cylinder Head Long Bolts (Second Pass in Sequence)

75 degrees

Cylinder Head Medium Bolts (Second Pass in Sequence)

65 degrees

Cylinder Head Short Bolts (Second Pass in Sequence)

55 degrees

Distributor Bolt

12

--

106

Drain Plug

20

15

--

Drive Belt Tensioner Bolt (Engine Accessory)

25

18

--

Drive Belt Tensioner Bolt (Mechanical Fan)

25

18

--

EGR Control Valve Relay Nut

25

18

--

EGR Solenoid Valve Bracket Nut

25

18

--

EGR Valve Nut

30

22

--

EGR Valve Pipe Bolt (at Exhaust Manifold)

30

22

--

EGR Valve Pipe Nut (at Intake Manifold)

25

18

--

EGR Valve Pipe Stud

12

--

106

Engine Block Coolant Drain Plug

20

15

--

Engine Block Oil Gallery Plug

20

15

--

Engine Coolant Air Bleed Pipe Bolt

40

30

--

Engine Coolant Air Bleed Pipe Nut

17

13

--

Engine Flywheel Bolt

100

74

--

Engine Flywheel Housing Cover Bolt

8.5

--

75

Engine Front Cover Bolt

12

--

106

Engine Mount Bracket Bolt

47

35

--

Engine Mount-to-Engine Bracket Through-Bolt

120

89

--

Engine Mount-to-Engine Bracket Nut

80

59

--

Engine Mount-to-Frame Bolt

50

37

--

Engine Mount-to-Frame Nut

48

35

--

Engine Oil Cooler Hose Fitting

24

18

--

Engine Oil Cooler Hose Nut

35

26

--

Engine Oil Cooler Pipe Clip Nut

6

--

53

Engine Oil Level Sensor

20

15

--

Engine Oil Level Switch Sensor

35

26

--

Evaporative Emission Canister Purge Valve Bracket Bolt

6

--

53

Exhaust Manifold Stud and Bolt

40

30

--

Fan Blade Clutch Nut

26

19

--

Fan Pulley Bracket Nut

50

37

--

Flywheel Bolt

100

74

--

Fuel Injection Fuel Rail Bolt

10

--

89

Fuel Pump Switch and Engine Oil Pressure Gage Sensor

12

--

106

Generator Bracket Bolt

50

37

--

Ignition Coil Studs

40

30

--

Intake Manifold Bolt and Stud (First Pass)

10

--

89

Intake Manifold Bolt and Stud (Final Pass)

50

37

--

Knock Sensor

20

15

--

MAP Sensor Bolt

6

--

53

Oil Filter Adapter Bolt

25

18

--

Oil Filter

20

15

--

Oil Level Indicator Tube Bolt

12

--

106

Oil Pan Baffle Nut

40

30

--

Oil Pan Corner Bolt Nut or Stud

20

15

--

Oil Pan Deflector Nut

40

30

--

Oil Pan Drain Plug

20

15

--

Oil Pan Side Rail Bolt or Stud

12

--

106

Oil Pressure Fittings (Plus Necessary Alignment)

12

--

106

Oil Pressure Gauge Sensor

12

--

106

Oil Pressure Sensor and Switch

12

--

106

Oil Pump Bolt-to Rear Crankshaft Bearing Cap

90

66

--

Oil Pump Cover Bolt

9

--

80

Oil Pump Driveshaft Bolt

18

13

--

Oil Temperature Sensor

12

--

106

Secondary Air Injection Pipe Fitting-to-Exhaust Manifold

55

41

--

Secondary Air Injection Pump Bracket Bolt and Nut

40

30

--

Spark Plugs (Cylinder Head New)

30

22

--

Spark Plugs (Cylinder Head All Subsequent Installations)

20

15

--

Starter Motor Bolt

47

35

--

Throttle Body Bolt

25

18

--

Transmission-to-Engine Bolt

47

35

--

Transmission Converter Cover Bolts

25

18

--

Transmission Filler Tube Bolt

25

18

--

Valve Lifter Guide Retainer Bolt

25

18

--

Valve Rocker Arm Ball Stud

68

50

--

Valve Rocker Arm Cover Bolts

12

--

106

Water Pump Bolt and Stud

45

33

--

Water Pump Driveshaft Bearing Retainer Bolt

12

--

106