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Home >> Ford >> 1981 >> Escort Base, 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> Ignition System >> MOTORCRAFT DURA-Spark II Ignition Systems >> Testing >> Fouled Spark Plug Check

Fouled Spark Plug Check

  1. Remove distributor cap, leaving spark plug wires attached. Connect megohmmeter leads to engine ground and, in turn, to each spark plug wire terminal inside distributor cap.
    NOTE: If no megohmmeter is available, proceed to "Power Balance Check ".
  2. If resistance reading is greater than 50 megohms, proceed to "Spark Plug Wire Resistance Check ". If below 50 megohms, spark plugs are fouled and must be cleaned or replaced.
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