LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2004 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 172 (Engine Exhaust System) >> Specifications >> Fastener Tightening Specifications
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fastener Tightening Specifications

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fastener Tightening Specifications

Application Specification
Metric English
Catalytic Converter Heat Shield Bolts 7 N.m 62 lb in
Exhaust Muffler Nuts 45 N.m 33 lb ft
Exhaust Manifold Bolts (4.2L)
  • First Pass
25 N.m 18 lb ft
  • Second Pass
25 N.m 18 lb ft
  • Final Pass
25 N.m 18 lb ft
Exhaust Manifold Bolt (5.3L)
  • First Pass
15 N.m 11 lb ft
  • Final Pass
25 N.m 18 lb ft
Exhaust Manifold Heat Shield Bolt (5.3L) 9 N.m 80 lb in
Exhaust Manifold Heat Shield Nut (4.2L) 5 N.m 44 lb in
Exhaust Manifold Heat Shield Stud (4.2L) 10 N.m 89 lb in
Exhaust Muffler Heat Shield Bolt 7 N.m 62 lb in
Exhaust Pipe Clamp Nut 50 N.m 37 lb ft
Exhaust Pipe Nut 50 N.m 37 lb ft
Heated Oxygen Sensor (HO2S) (5.3L) 42 N.m 31 lb ft
Transmission Filler Tube Bracket Nut (4.2L) 10 N.m 89 lb in