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GMC Truck
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1987
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Suburban 3/4 Ton 2WD V8-379 6.2L DSL
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Repair and Diagnosis
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Maintenance
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Tune-up and Engine Performance Checks
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Compression Check
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Specifications
Compression Check: Specifications
2068 kPa (300 psi).
Perform compression test with engine at normal operating temperature, glow plugs removed and throttle wide open.