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Home >> GMC >> 1999 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 4.3L V6, 5.0L, 5.7L & 7.4L V8 - VINS [W,X,M,R,J]) >> Removal & Installation >> Engine (7.4L) >> Removal (Express, G-Van & Savana)

Removal (Express, G-Van & Savana)

WARNING: This page is about a different variant/trim than selected.
  1. Release fuel system pressure. See FUEL PRESSURE RELEASE . Disconnect negative battery cable. Remove battery from vehicle. Remove interior engine cover. Remove air intake duct from throttle body. Remove air cleaner assembly. Drain cooling system and remove coolant reservoir. Remove front bumper, grill/parking light assembly and radiator support. Discharge A/C system (if equipped) using approved refrigerant recovery/recycling equipment.
  2. Remove upper and lower radiator hoses. Remove upper and lower fan shrouds. Remove A/C condenser and radiator from vehicle. Remove accessory drive belt and cooling fan. Disconnect engine wiring harness and tie out of the way. Remove engine oil fill tube and engine oil level indicator tube. Remove A/C compressor, A/C compressor mounting bracket and power steering pump. Remove generator and mounting bracket. Remove throttle body from upper intake manifold.
  3. Remove upper intake manifold. See INTAKE MANIFOLD (UPPER) . Remove lower intake manifold. See INTAKE MANIFOLD (LOWER) . Remove transmission oil level indicator tube. Disconnect transmission shift cable connector. Disconnect fuel supply and return lines at rear of engine. Raise and support vehicle. Remove starter motor and flywheel cover. Remove exhaust pipes and exhaust manifolds. Disconnect oil cooler lines from retaining brackets and block. Remove torque converter bolts.
  4. Remove bellhousing bolts. Support transmission with a suitable strap. Lower vehicle. Attach a length of chain to front of left cylinder head and to rear of right rear of cylinder head. Attach engine hoist. Remove engine mount through-bolts. Remove engine from vehicle.