C 3500 Truck 2WD V8-454 7.4L (1990)
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.
Chevrolet Workshop Service and Repair Manuals
Firing Order >
< A/T - Buzzing Noise at Idle|Page 709
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