2000 Buick Regal Oil Pan Replacement Removal Procedure Tools Required J 28467-90A Engine Support Adapters J 28467-B Universal Engine Support Fixture J 36462-A Engine Support Adapter Leg Set 1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical. 2. Carefully disconnect the throttle body air inlet duct. 3. Remove the engine mount struts from the engine. Refer to Engine Mount Strut Replacement. 4. Remove the drive belt. Refer to Drive Belt Replacement. 5. Install the J 28467-90A, the J 28467-B and the J 36462-A. Do not raise the engine. Refer to Engine Support Fixture. 6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. 7. Disconnect the three-way catalytic converter pipe from the right exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust. 8. Remove the right front tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels. 9. Remove the right engine splash shield. Refer to Splash Shield Replacement - Engine in Body Front End. 10. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement. 11. Remove the oil filter. Refer to Engine Oil and Oil Filter Replacement.
12. Remove the AC compressor bracket bolts. Reposition and secure the AC compressor. 13. Disconnect the power steering oil cooler pipe brackets from the frame. 14. Remove the engine mount bracket bolts from the engine. Refer to Engine Mount and Bracket Replacement. 15. Remove the lower engine mount nuts. Refer to Engine Mount and Bracket Replacement. 16. Remove the torque converter cover. Refer to Torque Converter Cover Replacement in Automatic Transaxle - 4T65-E. 17. Disconnect the oil level sensor wiring harness connector. Notice Remove the oil level sensor, located in the oil pan, before the oil pan is removed. The sensor may be damaged if the oil pan is removed first. 18. Remove the oil level sensor. 19. Lower the vehicle. 20. Use the J 28467-B in order to raise the engine for access.
21. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. 22. Suitably support the frame. Loosen the left side frame bolts. Remove the right side frame bolts. Lower the frame for access. Refer to Frame Removal in Frame and Underbody. 23. Remove the engine mount and the engine mount bracket. 24. Remove the oil pan retaining bolts. 25. Remove the oil pan. 26. Remove the oil pump pipe and screen assembly and the oil pan gasket. 27. Clean the following parts: The oil pan flanges The oil pan rail The front cover The rear main bearing cap The threaded holes Installation Procedure Notice
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 locking compound or sealant are identified in the service procedure. 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 in order to avoid damage to parts and systems. Notice Install the oil level sensor, located in the oil pan, after the oil pan is installed. The sensor may be damaged if the oil level sensor is installed first. 1. Install the oil pan gasket and the oil pump pipe and screen assembly. Tighten Tighten the oil pump pipe and screen bolts to 15 N m (11 lb ft).
2. Install the oil pan. 3. Clean the oil pan bolts and apply one drop of thread lock compound GM P/N 12345382 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. 4. Install the oil pan bolts. Tighten Tighten the oil pan bolts to 14 N m (125 lb in). 5. Place the engine mount bracket and the engine mount to the proper position. Install the engine mount bracket bolts to the engine. Refer to Engine Mount and Bracket Replacement. 6. Install new right side frame bolts. Make sure the frame is suitably supported. Install new left side frame bolts. Refer to Frame Removal in Frame and Underbody. 7. Lower the vehicle. 8. Use the J 28467-B in order to lower the engine. 9. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. 10. Install the lower engine mount nuts. Tighten Tighten the lower engine mount nuts to 47 N m (35 lb ft). 11. Install the oil level sensor. Tighten Tighten the oil level sensor to 20 N m (15 lb ft). 12. Connect the oil level sensor wiring harness connector. 13. Install the torque converter cover. Refer to Torque Converter Cover Replacement in Automatic Transaxle - 4T65-E. 14. Connect the power steering oil cooler pipe brackets to the frame.
15. Install the AC compressor bracket bolts. Refer to Compressor Replacement in HVAC. 16. Install the new oil filter. Refer to Engine Oil and Oil Filter Replacement. 17. Install the oil pan drain plug. Tighten Tighten the oil pan drain plug to 30N m (22 lb ft). 18. Install the right engine splash shield. Refer to Splash Shield Replacement - Engine in Body Front End. 19. Install the right front tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels. 20. Connect the three-way catalytic converter pipe to the right exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust. 21. Lower the vehicle. 22. Remove the J 28467-B, the J 36462-A and the J 28467-90A. 23. Install the drive belt. Refer to Drive Belt Replacement. 24. Install the engine mount struts to the engine. Refer to Engine Mount Strut Replacement. 25. Carefully install the throttle body air inlet duct. 26. Fill the crankcase with new engine oil. Refer to Engine Oil and Oil Filter Replacement. 27. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in
Engine Electrical. 28. Inspect for the proper fluid levels. 29. Inspect for leaks. 30. Measure the wheel alignment. Refer to Wheel Alignment Specifications and Measuring Wheel Alignment in Wheel Alignment.