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Home >> GMC >> 1985 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 4.3L/5.0L/5.7L Tests W/Codes >> Chart C4A - IGN System (All W/ Integral Coil)

Chart C4A - IGN System (All W/ Integral Coil)

Fig 1: Flow Chart C4A - Ign. System (All W/ Integral Coil)
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NOTE: Perform Diagnostic Circuit Check before using this procedure. If a tachometer is connected to the tachometer terminal, disconnect it before proceeding with the test. Intermittent no start may be caused by wrong pick-up or ignition coil.
Fig 2: Flow Chart C4A - Ign. System (All W/ Integral Coil) (1 Of 2)
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Fig 3: Flow Chart C4A - Ign. System (All W/ Integral Coil) (2 Of 2)
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