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C3500 HD 7.4 J, Standard
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Engine Controls - Basic Diagnostic Procedures - Gasoline
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Engine Controls - Basic Diagnostic Procedures - Gasoline
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Model Identification
Introduction
Preliminary Inspection & Adjustments
Visual Inspection
Mechanical Inspection
Compression
Exhaust System Backpressure
A-3, No-Start Diagnosis
Definition
No Start - Engine Cranks Okay
General Inspection
Ignition System
Fuel System
Basic Fuel System Checks
Fuel System Pressure Relief
Fuel System Pressure Test
Test Description
Diagnostic Procedure
Injector Circuit Diagnosis (A-4)
C-4, Basic Ignition System Checks
Circuit Description
Enhanced Ignition System Check
Notes
Diagnostic Aids
Idle Speed & Ignition Timing
On-Board Diagnostic (OBD) System Check
Notes
Engine Controls - Basic Diagnostic Procedures - Gasoline
The OBD System Check determines:
A-1, Malfunction Indicator Light (Mil)
Notes
Diagnostic Aids
A-2, No Scan Tool Data
Summary