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Home >> Jeep >> 1981 >> Cherokee Base, 2D Utility, 5.9L Eng VIN N, 4WD, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> MOTORCRAFT Solid State Ignition >> Testing >> Ignition Coil Resistance Check >> Primary Resistance

Primary Resistance

Remove connector from positive and negative coil terminals. Be sure ignition switch is "OFF." Set an ohmmeter on low scale and connect ohmmeter leads to positive and negative terminals. Ohmmeter reading should be 1.13-1.23 ohms at 75°F. With coil temperature at 200°F, a 1.5 ohm reading is acceptable.

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