Operation CHARM
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Oldsmobile
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1987
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Calais FWD L4-151 2.5L
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Vacuum Pump
Vacuum Pump
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Description and Operation
Electrical Vacuum Pump
Description
Operation
Belt Driven Vacuum Pump
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
