GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications Gasoline Engines

Application

Specification

Metric

English

Fan Assembly Mounting Bolts

4 N·m

35 lb in

Fan Motor Nut

3.2 N·m

28 lb in

Fan Motor Retaining Screws

4 N·m

35 lb in

Radiator Retaining Bolts, Upper Left and Upper Right

8 N·m

71 lb in

Surge Tank Attaching Bolt

5 N·m

44 lb in

Thermostat Housing Mounting Bolts - 1.6L DOHC

20 N·m

15 lb ft

Thermostat Housing Mounting Bolts - 1.8L L97/2.0L DOHC

15 N·m

11 lb ft

Thermostat Housing Mounting Bolts - 1.8L LDA

20 N·m

15 lb ft

Water Pump Mounting Bolts - 1.6L DOHC

10 N·m

89 lb in

Water Pump Mounting Bolts --1.8L L97

25 N·m

18 lb ft

Water Pump Mounting Bolts - 1.8L LDA

8 N·m

71 lb in

Water Pump Mounting Bolts - 1.8L/2.0L DOHC

25 N·m

18 lb ft

Fastener Tightening Specifications Diesel Engine

Application

Specification

Metric

English

A/C Condenser Retaining Bolt

9 N·m

80 lb in

Auxiliary Cooling Fan Assembly Bolt

4 N·m

35 lb in

Charge Air Cooler Retaining Bolt

8.5 N·m

75.2 lb in

Fuel Pipe - Common Rail Retaining Bolt

10 N·m

88.5 lb in

Injection Pump Sprocket Nut

70 N·m

51.6 lb ft

Main Cooling Fan Assembly Bolt

4 N·m

35 lb in

Radiator Upper Bracket Retaining Bolt

14 N·m

10.3 lb ft

Surge Tank Retaining Bolt and Nut

5 N·m

44 lb in

Thermostat Housing Bolts

23 N·m

17 lb ft

Timing Belt Idler Bolt

52 N·m

38.4 lb ft

Timing Belt Rear Cover Bolt

11 N·m

97.4 lb in

Transaxle Oil Cooler and Line Retaining Bolt

10 N·m

88.5 lb in

Water Pipe Retaining Bolt (M6)

9 N·m

79.7 lb in

Water Pipe Retaining Bolt (M8)

20 N·m

14.8 lb ft

Water Pump Tightening Bolt

11 N·m

97.4 lb in