Download 2005 Chrysler 300 C Cover Cylinder Head Service Manual – REMOVAL 1. Disconnect and isolate the negative battery cable. 2. Remove the upper intake manifold from the engine (Refer to MANIFOLD – INTAKE). 3. Cover lower intake manifold (4) with a suitable cover during service. 4. Disconnect and remove the three ignition coils (2). See Fig. 127. 5. Remove the ground strap/resistor retaining bolt from the cylinder head cover. 6. Lift up on the wire harness track (3) retaining tabs. See Fig. 127. 7. Completely loosen the cylinder head cover retaining bolts and remove the cylinder head cover. See Fig. 128. INSTALLATION 1. Clean cylinder head and cover mating surfaces. Inspect and replace gasket (1) and seals (2) as necessary. See Fig. 129. 2. To replace spark plug tube seals (2): Using a suitable pry tool, carefully remove tube seals (2). Position new seal (2) with the part number on seal facing cylinder head cover. Install seals using Special Tool MD-998306 (1). See Fig. 130. 3. Install cylinder head cover (1) and bolts (2). Tighten to 12 N.m (105 in. lbs.). 4. Position the wiring harness (3) on the cylinder head cover. 5. Reclip the wire harness track retaining tabs into the cover. 6. Install the ground strap/resistor retaining bolt onto the cylinder head cover.