1994 Chevy Cavalier replacement

LEFT VALVE COVER REPLACEMENT

On 3.1L engines, an "Idle Learn" procedure must be performed which requires the use of a scan tool.

Disconnect the negative battery cable.
Detach the coolant bleed pipe from the thermostat housing.
Disconnect the vent tube from the rocker arm cover-to-air inlet.
Unfasten the retaining bolts, then remove the rocker arm cover. If the cover sticks to the cylinder head, remove by carefully bumping the end of the rocker arm cover with the palm or your hand or a soft rubber mallet. Remove and discard the gasket and bolt grommets.
Clean the sealing surfaces of the cylinder head and valve cover with a suitable degreaser.

To install:

Position a new gasket and bolt grommets, making sure it is properly seated in the valve cover groove. Apply part no. 1052917 or suitable sealer in the cylinder head notch. See the accompanying figure.
Position the rocker arm cover, then secure with the retaining bolts. Tighten the bolts to 89 inch lbs. (10 Nm).
Attach the vent tube to the rocket arm cover.
Fasten the coolant bleed tube to the thermostat housing.
Connect the negative battery cable.
For the 3.1L engine perform the following "Idle Learn" procedure;

Install a Tech 1 Â scan tool.
Turn the ignition to the ON position, engine not running.
Select IAC SYSTEM , then IDLE LEARN in the MISC TEST mode.
Place the transaxle in park or neutral, as applicable.
Proceed with idle learn as directed by the scan tool.

Start the engine and check for leaks.

RIGHT VALVE COVER REPLACEMENT

Disconnect the negative battery cable.
Unfasten the brake booster vacuum line at the bracket.
Disconnect the throttle cable and vacuum line bracket at the plenum.
Detach the power steering lines from the alternator bracket stud.
Unfasten the rear alternator brace.
Remove the serpentine belt.
As outlined in of this repair guide, remove the alternator and lay it aside.
Tag and disconnect the rear bank spark plug wires from the plugs, then position them aside.
Remove the PCV valve.
Unfasten the rocker arm cover retaining bolts, then remove the cover. Remove and discard the gasket and bolt grommets.
If the cover adheres to the cylinder head, lightly tap the end of the cover with a soft rubber mallet or palm of the hand. Do not distort or scratch the sealing flange.

To install:

Clean the sealing surfaces of the head and the cover.
Install new bolt grommets, then install a new gasket making sure it is seated properly in the rocker arm cover groove.
Apply RTV sealant in the notch.
Position the cover, then secure using the retaining bolts. Tighten the bolts evenly to 89 inch lbs. (10 Nm).
Install the remaining parts, then connect the negative battery cable.

For the 3.1L engine perform the following "Idle Learn" procedure;

Install a Tech 1 Â scan tool.
Turn the ignition to the ON position, engine not running.
Select IAC SYSTEM , then IDLE LEARN in the MISC TEST mode.
Place the transaxle in park or neutral, as applicable.
Proceed with idle learn as directed by the scan tool.

Start the engine and check for leaks.