2016 Buick Cascada BaseFACTORY OEM SERVICE PROCEDURE

Spark Plug Replacement

Fig 1: Spark Plug
GM2918334Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary Procedure 
Remove the ignition coil. Refer to Ignition Coil Replacement .
1 Spark Plug
CAUTION:

Refer to Fastener Caution .


Tighten 
17 N.m (13 lb ft)
Special Tools 
EN-51149  Spark Plug Remover / Installer
For equivalent regional tools, refer to Special Tools (Diagnostic Tools)Special Tools (Removal and Installation) .
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.