Removal & Installation
Before servicing the vehicle, refer to the Precautions Section.
NOTEDisconnecting the negative battery cable on some vehicles may interfere with the functions of the on-board computer systems and may require the computer to undergo a relearning process, once the negative battery cable is reconnected.
NOTEIf working near and/or around the SRS system and components, be sure to properly disable the SRS system. See disarming/arming the SRS system.
- Disconnect the negative battery cable.
- Remove the air cleaner assembly.
- Disconnect the wire connectors at the wiper motor and remove the fuse cover.
- Remove the distributor cap and wires.
- Remove the transmission and oil dipsticks.
- Remove the upper fan shroud.
- Raise and safely support the vehicle.
- Drain the engine oil. Be sure to properly dispose of used oil.
- Disconnect the exhaust pipe at the manifolds. Remove the flywheel cover.
- Disconnect the transmission fluid cooler lines at the clips on the oil pan.
- Remove the transmission dipstick tube and linkage as required.
- Remove the starter motor assembly.
- If equipped with an oil level sensor, it must be disconnected and removed to prevent possible damage to the oil level sensor, oil pump pickup screen and pipe.
- Disconnect the engine mount through-bolts and safely raise and support the front of the engine only as far as necessary to remove the oil pan.
- Remove the oil pan attaching nuts, bolts and reinforcement.
Place the crankshaft timing mark to the 6 o'clock position in order to move the crankshaft out of the way, then remove the pan and discard the old gasket.
Be sure to use new fasteners, as required.
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread sealer are identified. Do not use paints, lubricants or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners.
- Clean the gasket mating surfaces. Apply a small amount of 1052914 or equivalent sealer to the front and rear cover to cylinder block junctions and continue bead 1 inch in either direction from the radius of the cavity.
- Install the new gasket on the oil pan, and position the oil pan in place with loosely installed nuts, bolts and reinforcement.
- Lower the engine.
- Tighten the oil pan nuts to 17 ft. lbs. (23 Nm) and bolts to 97 inch lbs. (11 Nm).
- Connect the engine mount through-bolts.
- If equipped, install the oil level sensor and electrical connection.
- Install the starter motor assembly.
- Connect the transmission fluid cooler lines to the clips on the oil pan and install the transmission dipstick tube and linkage.
- Install the flywheel cover. Connect the exhaust pipe to the manifolds
- Lower the vehicle.
- Install the upper fan shroud.
- Install the transmission and oil dipsticks.
- Install the distributor cap and wires. Install the fuse cover and connect the wiper motor wiring connector.
- Install the air cleaner assembly.
- Reconnect the battery cable, refill crankcase with proper engine oil and check engine for leaks.
- Using the GM diagnostic scan tool or aftermarket equivalent reprogram the necessary systems and components. Be sure to follow the scan tool manufacturer-s directions.