Important: For aluminum oil pans, begin with step 4. For steel oil pans, skip steps 4 and 5.
- For steel oil pans, apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148) to the topside of the new windage tray gasket. Apply the RTV sealant directly over the sealing
bead.
- Install the NEW windage tray gasket onto the engine.
- Apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148) to the bottom side of the new windage tray gasket. Apply the RTV sealant directly over
the sealing bead.
- For aluminum oil pans, apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148), ensuring that the sealer also completely fills the groove
in the oil pan.
- To ensure proper sealing, apply additional sealer at the four points called out in the illustration (1).
- Install the oil pan and oil pan windage tray gasket - if applicable.
- Install the oil pump pipe screen assembly.
Notice: Refer to Fastener Notice in the Preface section.
- Install the oil pump pipe screen bolts.
Tighten
Tighten the bolts to 15 N·m (11 lb ft).
- Install the oil pan.
- Clean the oil pan bolts and apply one drop of thread lock compound GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the oil pan bolt threads.
Important: DO NOT overtighten bolts or damage to the oil pan may occur, resulting in an oil leak.
- Install the oil pan bolts.
Tighten
Tighten the oil pan bolts to 14 N·m (125 lb in).
- Install the oil level sensor.
Tighten
Tighten the sensor to 20 N·m (15 lb ft).
- Install the torque converter covers. Refer to
Torque Converter Cover Replacement for the 4T65E automatic transaxle.
- Install the engine mount and the bracket to the frame.
- Install the engine mount upper nuts.
Tighten
Tighten the nuts to 43 N·m (32 lb ft).
- Install the engine mount bracket to the engine.
- Loosely install the right engine mount bracket bolts to the engine.
- Loosely install the left engine mount bracket bolts to the engine.
Tighten
Tighten the bolts to 102 N·m (75 lb ft).
- Lower the vehicle.
- Using the engine support fixture lower the engine.
- Raise the vehicle.
- Install the engine mount lower nuts.
Tighten
Tighten the nuts to 43 N·m (32 lb ft).
- Install the oil level sensor wiring harness and the oil level sensor wiring harness bolt to the engine.
Tighten
Tighten the bolt to 10 N·m (89 lb in).
- Connect the oil level sensor electrical connector.
- Install right exhaust manifold pipe stud nuts.
Tighten
Tighten the nuts to 30 N·m (22 lb ft).
- Install the engine oil filter.
- Lower the vehicle.
- Remove the engine support fixture.
- Install the right and left engine mount struts. Refer to
Engine Mount Strut Replacement - Right Side and
Engine Mount Strut Replacement - Left Side.
- Install the air cleaner intake duct. Refer to
Air Cleaner Inlet Duct Replacement for the 3.8L engine.
- Fill the crankcase with engine oil. Refer to
Engine Oil and Oil Filter Replacement.
- Install the fuel injector sight shield. Refer to
Fuel Injector Sight Shield Replacement.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection.
- Inspect for leaks.