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Home >> GMC >> 1983 >> S15 Jimmy 2.8 B, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - 4-CYL >> Testing >> Notes

Ignition System - 4-CYL: Testing: Notes

NOTE: When testing the ignition system, use either an ignition spark tester or modified spark plug (case grounded, with side electrode cut off).