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Home >> Jeep >> 1988 >> Wagoneer >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 4.0L 6-CYL - VIN [M] & 4.2L 6-CYL - VIN [C] >> Removal & Installation >> Cylinder Head >> Removal

Cylinder Head: Removal

  1. Disconnect negative battery cable. Drain cooling system. Disconnect hoses at thermostat housing. Remove intake and exhaust manifolds. See the following:
  2. Disconnect and mark all hoses and electrical connections at cylinder head. Disconnect and mark spark plug wires. Remove spark plugs. Remove valve cover bolts.
  3. Remove the rocker arms and the push rods. Remove cylinder head bolts. Remove cylinder head. See ROCKER ARMS & BRIDGE .