Spark Plug Replacement

2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION Spark Plug Replacement
WARNING: This page is about a different car, the 2018 Chevrolet Sonic. However, it is still accessible from the selected car via links, so may be relevant.
GM2020163Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedure

  1. Open the hood.
  2. Remove the engine sight shield.
  3. Remove the ignition coil. Refer to Ignition Coil Replacement .
1 Spark Plugs
CAUTION:

Refer to Fastener Caution .


Tighten 
25 N.m (18 lb ft)
Special Tools 
EN-194-E  Spark Plug Remover
For equivalent regional tools, refer to Special Tools (Diagnostic Tools) .
RENDER: 1.0x

NO RELATED

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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.