In removing the valve covers, first disconnect the negative cable from the battery. Next pick up the accelerator control splash shield and air cleaner outlet tube. To access the right valve cover, remove the alternator, ignition coil pack, and, if it hasn't already been removed, the bolt securing the A/C line above the upper intake manifold. Using a tool, such as a door panel clip remover, pry the two harness wires loose away from the valve cover. Then detach the spark plug wires from the clips attached to the valve cover. Remove the vacuum hose from the coupling placed above the valve cover; and with your thumb, lift the engine wiring harness clip off of the valve cover. Don't pull on the harness. Unscrew original valve cover bolts along with the reinforcing plates and lift off the valve cover, gently tapping the side with a soft-face hammer to break the loco gasket seal. For the left valve cover, repeat the steps to remove the bolt from the air conditioning line. This includes pulling the electrical connector for the air conditioning compressor clutch and removing the mounting bolts from the compressor before moving away. Remove the upper intake manifold after disconnecting and marking the brake booster vacuum hose and all vacuum hoses from the tee on the plenum. In order to reach the front valve cover bolt, the PCV hose and valve are detached, the wiring harnesses are pried free of the valve cover, the wires on the driver's side spark plugs are disconnected, and the bolt is removed that secures the fuel line clip. Once the valve cover bolts are removed and cover is lifted off the Poke holes through which oil is run. Use a scraper on the old gasket material on the intake manifold, cylinder head, and valve cover until you're down to new material. Wipe everything off with lacquer thinner or acetone. After removing the plastic film from the self-sticking sealant, stick the new gasket on the valve cover. Next, apply a bead of silicone sealant on the seam between the cylinder head and the intake manifold. Reinstall the valve covers by reversing the dismantling steps. Tighten valve cover bolts evenly, starting from centre bolts and working outward to specified torque.