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GMC
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1987
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Forward Control 5.7 K, Standard
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Repair and Diagnosis (Single Page)
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Engine Performance
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Ignition System
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Ignition System - HEI (CARBURETED Models)
Ignition System - HEI (CARBURETED Models)
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Description
Operation
Trouble Shooting
System Testing
Testing Precautions
Engine Will Not Start
Intermittent System Problems
Component Testing
Electronic Module
Ignition Coil
Pick-Up Coil
Capacitor
Overhaul
Distributor
Disassembly
Reassembly
Typical Oscilloscope Patterns
Notes
Reading Scope Primary Pattern
Secondary Voltage Patterns