GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Epica 🢒 Preface 🢒 Cautions and Notices 🢒 Cylinder Head Cover Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1375152 Size: SH
  1. Remove the fuel pump fuse.
  2. Start the engine and repeat cranking until the remaining fuel in the fuel line is all consumed.
  3. Disconnect the negative battery cable.
  4. Drain the engine coolant.
  5. Remove the intake manifold. Refer to Intake Manifold Replacement .

    6. Object Number: 1375559 Size: SH
  6. Remove the coolant reservoir. Refer to Radiator Surge Tank Replacement .
  7. Remove the front support bracket retaining bolt and the front support bracket.

    8. Object Number: 1375562 Size: SH
  8. Remove the air filter housing.

    9. Object Number: 1375563 Size: SH
  9. Remove the rear support bracket retaining bolts and the rear support bracket.
  10. Remove the ignition coils. Refer to Ignition Coil Replacement in Engine Controls-2.5L.

    11. Object Number: 1375565 Size: SH
  11. Remove the cylinder head cover bolts and cylinder head cover.
  12. Remove the cylinder head cover gasket.

Installation Procedure

    Object Number: 1375566 Size: SH
  1. Discard used cylinder head gasket and install new one.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the cylinder head cover and bolts.

    3. Tighten
    Tighten the cylinder head cover bolts to 13 N·m (115 lb in).


    Object Number: 1375315 Size: SH
  3. Install the ignition coils.

    4. Tighten
    Tighten the ignition coil retaining bolts to 6-8 N·m (53-71 lb in).


    Object Number: 1375567 Size: SH
  4. Install the rear support bracket.

    5. Tighten

        • Tighten the rear support bracket remaining bolt --intake side to 10 N·m (89 lb in).
        • Tighten the rear support bracket retaining bolt --exhaust side to 22 N·m (16 lb ft).

    Object Number: 1375568 Size: SH
  5. Install the air filter housing.

    6. Tighten
    Tighten the air filter housing bolt to 10 N·m (89 lb in).


    Object Number: 1375569 Size: SH
  6. Install the front support bracket.

    7. Tighten
    Tighten the front support bracket retaining bolt to 20 N·m (15 lb ft).


    Object Number: 1375570 Size: SH
  7. Install the coolant reservoir. Refer to Radiator Surge Tank Replacement in Engine Cooling.

    8. Tighten
    Tighten the coolant reservoir retaining bolts to 40 N·m (30 lb ft).


    Object Number: 1375572 Size: SH
  8. Discard used intake manifold gaskets and install new ones.
  9. Tighten the intake manifold retaining nuts and bolts. Refer to Intake Manifold Replacement .

    10. Tighten

        • Tighten the 7 intake manifold retaining bolts to 12 N·m (106 lb in).
        • Tighten the 4 intake manifold retaining nuts to 12 N·m (106 lb in).
        • Tighten the 2 bolts on the intake manifold support bracket to 12 N·m (106 lb in).
  10. Install the fuel pup fuse.
  11. Connect the negative battery cable.
  12. Refill the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.