Operation CHARM
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GMC Truck
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1992
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G 2500 3/4 Ton Van V8-379 6.2L DSL VIN J FI
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Lamps and Indicators - Engine
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Oil Pressure Gauge
Oil Pressure Gauge
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Testing and Inspection
Oil Pressure Gage Indicates High Pressure at All Times
Oil Pressure Gage Indicates Low Pressure When Pressure Is Good
Oil Pressure Gage Is Inaccurate