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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 6.2L V8 Diesel - VINS [C,J] >> Removal & Installation >> Engine >> "G" Series

"G" Series

  1. Disconnect batteries. Remove headlight bezels, grille, bumper and lower valance panel. Remove hood latch, coolant recovery bottle, upper fan shroud and tie bar. Remove engine cover. Discharge A/C system, disconnect A/C condenser lines and remove condenser (if equipped).
  2. Drain cooling system. Remove radiator, fan and lower shroud. Remove intake manifold. See INTAKE MANIFOLD. Remove injection pump. See INJECTION PUMP.
  3. Raise and support vehicle. Remove P/S pump with hoses attached and lay aside. Disconnect exhaust pipes from manifolds. Remove flywheel cover, torque converter bolts (A/T) and engine mount through-bolts. Disconnect cylinder block heater wires.
  4. Remove starter. Disconnect fuel line from fuel pump. Lower vehicle. Remove bellhousing bolts. Discharge A/C refrigerant and remove A/C compressor (if equipped). Remove oil filler tube upper bracket.
  5. Disconnect engine harness electrical connectors and lay harness aside. Remove air cleaner resonator and bracket. Remove transmission dipstick tube. Disconnect heater hoses from engine. Remove alternator upper bracket.
  6. Remove coolant crossover pipe. Attach Engine Lifting Fixture (J-33888) to center intake manifold bolt holes. Support transmission. Remove engine. To install, reverse removal procedure. Fill cooling system. Evacuate and charge A/C system.