GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Catalytic Converter-to-Exhaust Manifold Bolt/Nut - LZ4

31 N·m

23 lb ft

Exhaust Manifold Bolt - LZ4

20 N·m

15 lb ft

Exhaust Manifold Brace Bolt - L61

25 N·m

18 lb ft

Exhaust Manifold Heat Shield Bolt - L61

23 N·m

17 lb ft

Exhaust Manifold Heat Shield Bolt - LZ4

10 N·m

89 lb in

Exhaust Manifold Nut - L61

14 N·m

124 lb in

Exhaust Manifold Pipe-to-Muffler Nut - L61

30 N·m

22 lb ft

Exhaust Manifold Pipe Nut - L61

35 N·m

26 lb ft

Exhaust Pipe Heat Shield Nut

10 N·m

89 lb in

Heater Oxygen Sensor

42 N·m

31 lb ft

Heat Shield Nut

10 N·m

89 lb in

Left Catalytic Converter-to-Exhaust Manifold Nut - LZ4

31 N·m

23 lb ft

Left Catalytic Converter-to-Right Catalytic Converter Nut - LZ4

31 N·m

23 lb ft

Rear Catalytic Converter-to-Muffler Nut

30 N·m

22 lb ft