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1987
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Chevy Van G30, 6.2 J, 400/M40
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EGR System - Gasoline
EGR System - Gasoline
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Description
Operation
Vacuum Modulated EGR System
Ported EGR Valve
BACKPRESSURE EGR System
Negative Backpressure EGR Valve
EGR Thermal Vacuum Switch
System Testing
Functional Tests
Vacuum Modulated (Ported) & Negative Backpressure Types
EGR-TVS Test (Hot)
EGR Bleed Solenoid Check (5.0L/5.7L Federal W/ A/T)