Operation CHARM
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Oldsmobile
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1991
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Ninety-Eight V6-3800 3.8L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Radiator Cooling Fan
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Radiator Cooling Fan Motor
Radiator Cooling Fan Motor
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Description and Operation
Testing and Inspection
Initial Inspection and Diagnostic Overview
System Check
Troubleshooting Hints
Symptom Related Diagnostic Procedures
Chart C-12B Fan On at All Times
Chart C-12C No Low Speed Cooling Fan
Chart C-12D No High Speed Cooling Fan
Component Tests and General Diagnostics
Component Diagnostic Charts - PFI
Chart C-12A Coolant Fan Control Circuit
Chart C-12B Coolant Fan Control Circuit
Chart C-12C Coolant Fan Control Circuit
Chart C-12D Coolant Fan Control Circuit
Component Diagnostic Charts
System Diagnosis
Service and Repair
Diagrams
Diagram Information and Instructions
Cell References
Schematic Symbols
Wire Color Code Identification
Diagnostic Aids
Pull-to-Seat Connectors
Push-to-Seat Connectors
Electrical Diagrams
