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Home >> GMC >> 1998 >> Forward Control 7.4 J >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul - 7.4L >> Fuel System >> Upper Intake Manifold Assembly >> Removal

Upper Intake Manifold Assembly: Removal

  1. Disconnect negative battery cable. Remove air intake tube from throttle body. Remove crankcase vent tube from throttle body. Remove EGR pipe between intake manifold and exhaust manifold. Remove ignition coil from intake manifold. Remove throttle body. See THROTTLE BODY .
  2. Remove EVAP canister solenoid valve. Remove No. 8 spark plug wire from distributor cap. Remove upper intake manifold retaining bolts. Remove upper intake manifold and gasket.