Operation CHARM
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GMC Truck
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1992
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Suburban 3/4 Ton 4WD V8-350 5.7L
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Repair and Diagnosis
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EGR Valve
EGR Valve
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Description and Operation
Negative Backpressure EGR Valve
Port EGR Valve
Testing and Inspection
Preliminary Checks
System Diagnosis
Locations
Service and Repair
EGR Intake Manifold Cleaning
EGR Valve Replacement
EGR Valve Cleaning
Diagrams
