GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications Gasoline Engines

Application

Specification

Metric

English

Catalytic Converter-to-Exhaust Manifold Nuts

40 N·m

30 lb ft

Catalytic Converter-to-Underbody Shield

2.5 N·m

22 lb in

Exhaust Front Pipe-to-Catalytic Converter Nuts

40 N·m

30 lb ft

Exhaust Front Pipe-to-Front Muffler

30 N·m

22 lb ft

Exhaust Manifold Cover Bolts

15 N·m

11 lb ft

Front Bracket-to-Cylinder Block Bolt

50 N·m

37 lb ft

Front Muffler-to-Rear Muffler Nuts

30 N·m

22 lb ft

Front Muffler-to-Underbody Shield

2.5 N·m

22 lb in

Rear Muffler-to-Underbody Shield

2.5 N·m

22 lb in