GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications 3.5L Twin Cam V6 LX5

Application

Specification

Metric

English

Catalytic Converter Bolt

45 N·m

33 lb ft

Exhaust Crossover Pipe Bolt

20 N·m

15 lb ft

Exhaust Manifold to Cylinder Head Stud and Nut

25 N·m

18 lb ft

Exhaust Manifold Heat Shield Bolt

9 N·m

80 lb in

Exhaust Manifold Pipe Stud

6 N·m

53 lb in

Exhaust Manifold Pipe Stud Nut

32 N·m

24 lb ft

Exhaust Muffler Inlet Pipe Clamp Nut

50 N·m

37 lb ft

Exhaust Pipe Center Hanger Bolt

25 N·m

18 lb ft

Exhaust Pipe Rear Hanger Bolt

25 N·m

18 lb ft

Heated Oxygen Sensor

42 N·m

31 lb ft

Rear Bumper Impact Bar Bolt

25 N·m

18 lb ft

Fastener Tightening Specifications 3800 V6 L36

Application

Specification

Metric

English

Catalytic Converter Bolt

45 N·m

33 lb ft

Exhaust Crossover Heat Shield Nut

20 N·m

15 lb ft

Exhaust Crossover Pipe Bolt

20 N·m

15 lb ft

Exhaust Manifold Heat Shield Nut

20 N·m

15 lb ft

Exhaust Manifold to Cylinder Head Stud and Nut

30 N·m

22 lb ft

Exhaust Manifold Pipe Stud

6 N·m

53 lb ft

Exhaust Manifold Pipe Stud Nut

35 N·m

26 lb ft

Exhaust Muffler Inlet Pipe Clamp Nut

50 N·m

37 lb ft

Exhaust Pipe Center Hanger Bolt

25 N·m

18 lb ft

Exhaust Pipe Rear Hanger Bolt

25 N·m

18 lb ft

Heated Oxygen Sensor

42 N·m

31 lb ft

Rear Bumper Impact Bar Bolt

25 N·m

18 lb ft