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1986
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Forward Control 7.4 W, Automatic, 400/M40
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Repair and Diagnosis
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Engine Performance
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Ignition System
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Ignition System - HEI (Federal)
Ignition System - HEI (Federal)
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Description
Operation
System Testing
Notes
Engine Will Not Start
Intermittent System Problems
Component Testing
Electronic Module
Integral Ignition Coil
Chevrolet & GMC Only
External Ignition Coil
Pick-Up Coil
Capacitor
Electronic Testing
Detonation Problems
Poor Engine Performance
Engine Starting Problems
Overhaul
Distributor
Disassembly
Reassembly
Typical Oscilloscope Patterns
Reading Scope Primary Pattern
Secondary Voltage Patterns:
Specifications
Wiring Diagrams