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GMC Truck
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1991
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Safari Van M V6-262 4.3L VIN Z TBI
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Cylinder Head Assembly
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Fuel Pressure Release
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Service and Repair
Fuel Pressure Release: Service and Repair
The TBI contains a constant bleed feature in the pressure regulator that relieves pressure. Removing fuel cap is the only pressure relief required.