2016 Buick Cascada BaseFACTORY OEM SERVICE PROCEDURE

Fastener Specifications

Application Specification
Metric English
Catalytic Converter Brace Bracket Nut 17 N.m 13 lb ft
Catalytic Converter Brace Bracket Nut 22 N.m 16 lb ft
Catalytic Converter Outlet Pipe Flange Stud 15 N.m 11 lb ft
Catalytic Converter to Exhaust Front Pipe Nut 22 N.m 16 lb ft
Exhaust Front Hanger Bracket Bolt 22 N.m 16 lb ft
Exhaust Front Hanger Insulator Nut 17 N.m 13 lb ft
Exhaust Front Pipe to Exhaust Muffler Nut 22 N.m 16 lb ft
Exhaust Manifold to Cylinder Head 20 N.m 15 lb ft
Exhaust Pipe Clamp 30 N.m 22 lb ft
Frame Rear Bolt 160 N.m 118 lb ft
Front Compartment Front Panel Bolt 100 N.m 74 lb ft
Heated Oxygen Sensor 42 N.m 31 lb ft
Turbocharger Brace Bracket Bolts 25 N.m 18 lb ft
Turbocharger Coolant Feed Pipe Bracket Bolt 10 N.m 89 lb in
Turbocharger Coolant Return Pipe Bracket Bolt 10 N.m 89 lb in
Turbocharger Coolant Feed Pipe Bolt - Hollow Screw 20 N.m 15 lb ft
Turbocharger Coolant Return Pipe Fitting 25 N.m 18 lb ft
Turbocharger Oil Feed Pipe Fitting 25 N.m 18 lb ft
Turbocharger Oil Return Pipe Bolt 10 N.m 89 lb in
Turbocharger to Cylinder Head 20 N.m 15 lb ft
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.