2010 Chevrolet Express 3500 Valve Cover

The procedure is to install a new rocker cover gasket into the valve rocker arm cover, the valve rocker arm cover onto the cylinder head, new rocker arm cover grommets if necessary, the rocker arm cover bolts and grommets and the vent hose to the valve rocker arm cover, apply thread lock to the threads of the bracket bolts, install the ignition coils and bracket to the rocker arm cover, the ignition coil bracket studs to the rocker cover and the spark plug wires to the ignition coils, position the engine harness if necessary, install the harness clips, connect the main electrical connector feeding the ignition coils, and then install the CPA lock, the oil fill tube, the upper transmission fill tube, and the engine cover.

The procedure is to remove the front passenger seat, the instrument panel lower extension, the left knee bolster, and the right knee bolster release the engine cover retainers, and then remove the engine cover from the vehicle.

The procedure is to remove the engine cover and the connector position assurance (CPA) lock, disconnect the main electrical connector to the ignition coil wire harness, remove the harness clips, reposition the engine harness if necessary, and then remove the spark plug wires from the ignition coils, the ignition coil bracket studs from the rocker arm cover, the ignition coils and bracket from the rocker arm cover, the positive crankcase ventilation (PCV) hose from the rocker arm cover, the valve rocker arm cover bolts, the valve rocker arm cover and the gasket from the rocker cover.

You can install a new rocker cover gasket into the groove of the valve rocker arm cover, the valve rocker arm cover onto the cylinder head, new rocker arm cover grommets if necessary, the rocker arm cover bolts, and the PCV hose to the rocker arm cover, apply thread lock to the threads of the bracket bolts, install the ignition coils and bracket to the rocker arm cover, the ignition coil bracket studs to the rocker arm cover and the spark plug wires to the ignition coils, position the engine harness if necessary, install the harness clips, connect the main electrical connector to the ignition coil wire harness, and then install the CPA lock and the engine cover.

You need to remove the engine cover, the upper transmission fill tube, and the oil fill tube, disconnect the main electrical connector to the ignition coil wire harness, remove the harness clips, reposition the engine harness if necessary, remove the spark plug wires from the ignition coils, and then remove the ignition coil bracket studs from the rocker arm cover, the ignition coils and bracket from the rocker cover, the vent hose from the valve rocker arm cover, the valve rocker arm cover bolts, the valve rocker arm cover and the gasket from the rocker cover.