How to Troubleshoot the Steering System in a Lincoln Navigator

Ford introduced the Lincoln Navigator in 1998 as a full-sized luxury SUV. Not only is it Lincoln's only four-wheel drive, it remains Ford's largest luxury sport vehicle. Keep your steering system in top shape and check for problems with this basic troubleshooting checklist to avoid expensive repairs.

Things You'll Need

• Motorcraft Mercon Automatic Transmission Fluid XT-2-QDX or Dexron Mercon III

Instructions

1. Have your dealer inspect the steering linkage every 15,000 miles. This will make sure the parts remain in good condition, well-lubricated and with the proper adjustments. Even if you need to replace a part you will avoid additional damage to other components.

2. Fill the reservoir with Motorcraft Mercon Automatic Transmission Fluid XT-2-QDX or the equivalent Mercon fluid such as Dexron Mercon III. If the fluid is contaminated or shows signs of air, you should bleed and refill. Check the belt to make sure it's still tight and look for leaks and loose connections.

3. Look for causes of vibrations by looking for unbalanced tires or uneven tire pressure. You should also check wheel alignment, wheel bearings and make sure there's no damage to the front-end components.

4. Track down hard steering problems by checking the tires and alignment first. You should also check to see if the power steering pump is working. You might also check the front-end lubrication.

5. Check the steering linkage if you feel too much play in the steering wheel. If the steering linkage works correctly, check the wheel bearings shocks and ball joints.

6. Follow the same list if the car wanders. You should also check the alignment and lock for damage to the front end.