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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L V8 - VIN [H] >> Removal & Installation >> Engine >> Removal & Installation

Removal & Installation

  1. Release fuel system pressure. See FUEL PRESSURE RELEASE . Disconnect battery negative cable. Drain cooling system.
  2. Remove coolant recovery reservoir. Remove grille, lower grille valance and upper radiator support. Discharge A/C refrigerant system. Remove A/C condenser and radiator. Remove power steering pump with hoses attached and set aside (if equipped).
  3. Remove engine cover, air cleaner and throttle body injection unit. Disconnect fuel lines, electrical connectors, vacuum hoses, coolant hoses and control cables as necessary. Remove thermostat housing and oil filler tube. Raise and support vehicle. Disconnect exhaust pipes from manifolds.
  4. Disconnect drive shaft from transmission. Disconnect transmission shift linkage and vehicle speed sensor connector from transmission. Drain crankcase. Remove transmission mount bolts. Support engine with jack.
  5. Remove front engine mounts and place wood blocks between cylinder block and frame. Lower vehicle. Attach engine hoist. Remove engine and transmission as an assembly. To install, reverse removal procedure. Fill crankcase and cooling system. Evacuate and charge A/C system.
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