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Home >> GMC >> 1982 >> Forward Control 4.8L Eng VIN T, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Tune-Up - 6 CYL >> Fuel Pump

Fuel Pump

To test pressure, pinch off fuel return line (if equipped) and connect pressure gauge to fuel line at carburetor. Hold pressure gauge at level of pump outlet.

FUEL PUMP

Application Pressure psi (kg/cm2 ) Volume Pints (Liters)
All Models 4.5-6.0 1 pt in 30 sec.
  (.3-.4). (.47 in 30 sec.)