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HOMESERVICE MANUALSPLYMOUTH1990SUNDANCE BASE, 2D HATCHBACK, 2.5 J, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGTESTING SPARK AT COIL 2.2L, 2.5L & 3.0L
1990 Plymouth Sundance Base, 2D Hatchback, 2.5 J, Automatic

Testing Spark At Coil 2.2L, 2.5L & 3.0L

1990 Plymouth Sundance Base, 2D Hatchback, 2.5 J, AutomaticSECTION Testing Spark At Coil 2.2L, 2.5L & 3.0L
  1. Remove coil wire from distributor cap. Hold end of cable approximately 1/4" from ground. Crank engine and check for spark from coil wire. If spark is present at coil wire, spark must be constant.
  2. If spark is present and constant, continue cranking engine. Slowly move coil wire away from ground. As coil wire is moved away from ground, check for arching at coil tower. If arching at coil tower is present, replace coil.
  3. If spark is good and no arching is present, secondary ignition system is producing necessary voltage. Ensure spark is getting to spark plugs by checking condition of rotor, cap, spark plug wires and spark plugs. Repair or replace as necessary. If ignition system components are in good condition, ignition system is okay.
RENDER: 1.0x

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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.