GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications

Application

Specification

Metric

English

Front Pipe-to-Exhaust Manifold Bolts

50 N·m

37 lb ft

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

50 N·m

37 lb ft

Hanger Bolts

13 N·m

115 lb in

Heated Oxygen Sensor #1 Nuts

41 N·m

30 lb ft

Heated Oxygen Sensor #2

45 N·m

33 lb ft

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

50 N·m

37 lb ft