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1976
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Chevette Base, Standard Trans
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Engine Mechanical
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Auxiliary Emission Control Systems
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EGR System
EGR System
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Description
Operation
Ported EGR System
External BACKPRESSURE Transducer Valve With EGR (BPV/EGR)
BACKPRESSURE EGR System
Notes
Positive Backpressure EGR Valve
Negative Transducer Backpressure EGR Valve
Thermal Vacuum Switch
EGR Thermal Control Valve
Testing
Functional Tests
EGR Valve Installed (Exc. Ported & Negative Backpressure Type Valves)
1975-77 BPV/EGR
1978-79 EGR Valve Installed (Ported & Negative Backpressure Types)
EGR Valve Removed (Backpressure Type Valve Only)
Maintenance
EGR Valve Cleaning
EGR Passage Cleaning