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GMC Truck
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1997
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S15/T15 Sonoma P/U 4WD V6-4.3L VIN X
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Service Precautions
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Vehicle Damage Warnings
Vehicle Damage Warnings
CAUTION:
Exhaust gasses may enter the
cooling system
through a leaking
cylinder head gasket
. Exhaust gasses combine with water to form acids. These acids are harmful to the cooling system and the engine.