GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications

Application

Specification

Metric

English

Floor Panel Brace Nuts

30 N·m

22 lb ft

Front Pipe-to-Exhaust Manifold Bolts

43 N·m

32 lb ft

Front Pipe-to-Three Way Catalytic Converter (TWC) Clamp

43 N·m

32 lb ft

Heated Oxygen Sensor #1

44 N·m

31 lb ft

LNK Engine, Exhaust Manifold-to-Cylinder Head Bolts

50 N·m

37 lb ft

LV6 Engine, Exhaust Manifold--to--Cylinder Head Bolts

37 N·m

27 lb ft

Heated Oxygen Sensor #2

44 N·m

31 lb ft

Three Way Catalytic Converter (TWC)-to-Muffler/Tail Pipe Assembly (2WD)

43 N·m

32 lb ft

Three Way Catalytic Converter (TWC)-to-Muffler/Tail Pipe Assembly (AWD)

32 N·m

24 lb ft