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1998
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Astro Van L AWD V6-4.3L VIN W
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Repair and Diagnosis
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Brakes and Traction Control
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Power Brake Assist
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Hydraulic Brake Booster
Hydraulic Brake Booster
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Description and Operation
Hydraulic Brake Booster Description
Flushing the Hydraulic Booster System
Testing and Inspection
Hydraulic Booster Diagnosis (General Diagnosis)
Slow Brake Pedal Return
The Brakes Grab-Booster Chatters-Pedal Vibrates
The Accumulator Leak-Down System Does Not Hold A Charge
The Brakes Self-Apply When You Turn the Steering Wheel
Hydraulic Booster Diagnosis (Erratic Operation)
Hydraulic Booster Diagnosis (Excessive Effort)
Hydraulic Booster Noise Diagnosis
System Tests
Normal Operating Noises
Hydraulic Brake Booster Diagnosis-Noisy Brake Booster
Hydraulic Booster Functional Test
Seal Leak Diagnosis
Service and Repair
Hydraulic Brake Booster Overhaul (Check Valve)
Hydraulic Brake Booster Replacement
Brake Booster Push Rod Gauging Procedure
Diagrams
Specifications
Description and Operation
Testing and Inspection
Service and Repair
Diagrams
SpecificationsDescription and OperationTesting and InspectionService and RepairDiagramsSpecifications