GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Catalytic Converter to Exhaust Manifold Nut (LZ4/LY7)

45 N·m

33 lb ft

Exhaust Manifold Bolt (LZ4/LY7)

20 N·m

15 lb ft

Exhaust Manifold Brace Bolt (LAT)

58 N·m

43 lb ft

Exhaust Manifold/Catalytic Converter to Exhaust Manifold Pipe Nut (LAT)

30 N·m

20 lb ft

Exhaust Manifold Heat Shield Bolt (LAT)

23 N·m

17 lb ft

Exhaust Manifold Heat Shield Bolt (LZ4/LY7)

10 N·m

89 lb in

Exhaust Manifold Lower Heat Shield Bolt (LY7)

10 N·m

89 lb in

Exhaust Manifold Lower Heat Shield Bolt (LY7)

50 N·m

37 lb ft

Exhaust Manifold Nut (LAT)

14 N·m

10 lb ft

Exhaust Manifold Pipe to Muffler Nut (LAT)

25 N·m

18 lb ft

Exhaust Pipe Heat Shield Nut

10 N·m

89 lb in

Exhaust Pipe to Muffler Nut (LZ4/LY7)

25 N·m

18 lb ft

Exhaust Pipe to Right Catalytic Converter Nut (LZ4/LY7)

25 N·m

18 lb ft

Frame Bolt - First Pass

100 N·m

74 lb ft

Frame Bolt - Final Pass

90 Degrees

Heater Oxygen Sensor (HO2S) (LZ4)

42 N·m

31 lb ft

Heat Shield Nut

10 N·m

89 lb in

Left Catalytic Converter-to-Right Catalytic Converter Nut (LZ4/LY7)

25 N·m

18 lb ft