OEM 2003 Lincoln Navigator Oil Pan

2003 Lincoln Navigator Oil Pan Parts Q&A

• Q: How to service and repair the oil pan on a 4x2 on 2003 Lincoln Navigator?

  A: You can start servicing and repairing a 4x2 oil pan after hoisting your vehicle and draining its engine oil. First detach the frame crossmember securing nuts and bolts and then proceed with removing the oil pan holding bolts. Use a plastic scraper to clean sealing surfaces because metal scrapers together with wire brushes and abrasive tools should be strictly avoided during this process. Replace the old gasket of the oil pan followed by a sealing surface cleaning with metal surface cleaner then leave both surfaces to dry for four minutes before a complete dry state becomes visible. The sealant operation must stop because the cleaning process needs to start over if the oil pan cannot be secured within four minutes. Both engine front cover-to-cylinder block and rear seal retainer-to-cylinder block sealing surfaces require application of silicone gasket and sealant. Install the new oil pan gasket together with the pan before installing the bolts in a loose manner. The bolt tightening process should begin with a application force of 2 Nm (18 inch lbs.) before increasing to 20 Nm (15 ft. lbs.) and finishing with one more 60-degree turn. Drain plug and frame crossmember should be put back in place along with engine oil filling and vehicle lowering for leak detection while starting the engine.