Ignition Spark Test

2012 Suzuki Grand Vitara Premium, AWDSECTION Ignition Spark Test
  1. Remove spark plugs. Refer to Spark Plug Removal and Installation .
  2. Inspect spark plugs. Refer to Spark Plug Inspection .
    WARNING: If this test is performed without disconnecting the injector connectors, a spark from a plug may ignite fuel vapor coming out of the spark plug holes during the test, causing a fire or explosion.
    Be sure to disconnect the injector connectors from the injectors before performing this test.
RENDER: 1.0x

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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.