Operation CHARM
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1986
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DeVille V8-252 4.1L
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Vacuum Pump
Vacuum Pump
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Description and Operation
Description
Operation
Testing and Inspection
Symptom Related Diagnostic Procedures
Electrical Vacuum Pump
Excessive Brake Pedal Effort/VAC. Pump Inop. & Warning Light on
Excessive Brake Pedal Effort, VAC. Pump OP. & Warning Light on
CONT. VAC. W/Normal-Excess Brake Effort Warning Light on or Off
System Diagnosis
Component Tests and General Diagnostics
Service and Repair
Vacuum Pump, Replace
Controller, Replace
Piston Assembly, Replace
Diagrams
Diagram Information and Instructions
Electrical Diagrams
Technical Service Bulletins
