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Home >> Chevrolet >> 2008 >> Chevy Express G3500, Van Passenger Extended >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Specifications >> Fastener Tightening Specifications

Fastener Tightening Specifications

Application Specification
Metric English
Catalytic Converter to Exhaust Manifold Nut (4.3L) 50 N.m 37 lb ft
Catalytic Converter to Muffler Clamp (6.0L) 54 N.m 40 lb ft
Catalytic Converter to Muffler Nut (4.8L, 5.3L, 6.0L) 48 N.m 35 lb ft
Catalytic Converter Nut (6.6L) 40 N.m 30 lb ft
Catalytic Converter to Particulate Filter Nut (6.6L) 40 N.m 30 lb ft
Catalytic Converter Pipe to Exhaust Pipe Nut (6.0L) 48 N.m 35 lb ft
Exhaust Gas Recirculation (EGR) Cooler Pipe Bolt (6.6L) 9 N.m 80 lb in
Exhaust Hanger to Transmission Bolt (4.3L) 50 N.m 37 lb ft
Exhaust Manifold Bolt/Stud (4.3L)
  • First Pass
15 N.m 11 lb ft
  • Final Pass
30 N.m 22 lb ft
Exhaust Manifold Bolt (4.8L, 5.3L, and 6.0L)
  • First Pass
15 N.m 11 lb ft
  • Final Pass
25 N.m 18 lb ft
Exhaust Manifold Bolt/Nut (6.6L) 38 N.m 28 lb ft
Exhaust Particulate Filter to Tail Pipe Nut (6.6L) 40 N.m 30 lb ft
Exhaust Pipe Clamp (6.0L) 54 N.m 40 lb ft
Exhaust Hanger Bolt (4.8L, 5.3L, 6.0L) 17 N.m 13 lb ft
Exhaust Pipe Flange to Exhaust Manifold Nut (4.8L, 5.3L) 65 N.m 48 lb ft
Exhaust Pipe Heat Shield Bolt (6.6L) 8 N.m 71 lb in
Exhaust Pipe to Manifold Bolt (6.6L) 53 N.m 39 lb ft
Exhaust Pipe to Turbocharger Bolt (6.6L) 53 N.m 39 lb ft
Heat Shield Bolt 12 N.m 106 lb in
Heated Oxygen Sensor (HO2S) (6.0L) 42 N.m 31 lb ft
Muffler to Catalytic Converter Nut (4.3L) 48 N.m 35 lb ft
Muffler to Exhaust Pipe Nut (6.0L) 48 N.m 35 lb ft
Transmission Fluid Fill Tube Nut (6.6L) 18 N.m 13 lb ft
Transmission Mount Nut (6.6L) 40 N.m 30 lb ft
Turbocharger Exhaust Heat Shield Bolt (6.6L) 8 N.m 71 lb in
Turbocharger Exhaust Pipe to Catalytic Converter Clamp (6.6L) 40 N.m 30 lb ft
Turbocharger Exhaust Pipe Clamp (6.6L) 15 N.m 11 lb ft
Turbocharger Exhaust Pipe to Exhaust Pipe Bracket Bolt (6.6L) 34 N.m 25 lb ft
Turbocharger Heat Shield Bolt (6.6L) 9 N.m 80 lb in