2018-2024 Lincoln Navigator Hood: A Guide to Aluminum Corrosion and Replacement

Symptoms of a Damaged or Failing Hood

Because the hood is a large body panel, most of its problems are easy to spot. Failures can range from cosmetic blemishes to serious safety issues involving the latching mechanism.

Cosmetic Damage

This is the most common issue and includes dents from impacts (like hail or falling objects), scratches, and rock chips. While minor cosmetic damage doesn't affect the hood's function, it can lead to more serious problems like corrosion if the protective paint layer is broken.

Paint Bubbling and Aluminum Corrosion

A key issue to watch for on these aluminum hoods is paint bubbling or blistering, which is a sign of corrosion. This often starts on the underside or along the front and side edges. Unlike steel which develops red rust, aluminum corrosion appears as a white, powdery substance underneath the paint, causing it to lift and bubble. Lincoln offers a specific corrosion warranty for aluminum panels that lasts for 5 years with unlimited mileage, covering repairs even without perforation (a hole).

Hood Latch or Alignment Issues

Problems with the latching mechanism or alignment can be serious. Symptoms include:

• Hood Won't Close or Latch: The hood may not lock securely when you press it down, often requiring multiple attempts. This points to a problem with the latch mechanism or striker alignment.
• Hood is Difficult to Open: The interior release handle may feel stiff, or pulling it may not pop the hood. This can be caused by a stretched or binding release cable.
• Vibrating or Fluttering at Speed: If the hood appears to shake or move while driving at highway speeds, it could be due to poor alignment, worn hinge bushings, or a latch that isn't holding it down tightly.
• Uneven Gaps: The space between the hood and the fenders or front grille should be even on both sides. Large or inconsistent gaps indicate the hood is out of alignment, which can happen after a minor collision or improper installation.

Known Issues, Recalls, and TSBs

As of mid-2024, there are no specific recalls or Technical Service Bulletins (TSBs) issued by Ford or the NHTSA that directly address the hood panel, hinges, or latch assembly for the 2018-2024 Lincoln Navigator. However, owners should be aware of the potential for aluminum corrosion.

Buying a Used 2018-2024 Navigator Hood: What to Check

A used OEM hood is often the best choice for repairs, as it guarantees perfect fitment and original material quality. Aftermarket hoods can be made of heavier steel, which can affect weight balance and strain the hood lift supports. When inspecting a used hood, pay close attention to the following:

• Verify it's OEM Aluminum: An OEM hood will feel significantly lighter than a steel aftermarket version. Check for a Ford/Lincoln part number sticker on the underside. The correct OEM part number is JL7Z-16612-A.
• Inspect for Hidden Repairs: Look at the surface from a sharp angle in good light. Wavy or distorted reflections can indicate that body filler was used to repair previous damage. Run your hand over the surface to feel for any unevenness.
• Check for Corrosion: Meticulously inspect the front lip, the side edges, and the areas around any mounting holes on the underside. Peel back any rubber seals if possible and look for any signs of paint bubbling or white, powdery residue.
• Examine Structural Integrity: Check the hinge mounting points and the latch striker area for any cracks, stress marks, or bending. Damage in these areas can make the hood impossible to align correctly.
• Consider Shipping: Hoods are large, awkward, and easily damaged. A seller with experience in freight shipping large body panels is crucial. Always inspect the hood thoroughly upon delivery before signing for it.

Cost Comparison for a 2018-2024 Lincoln Navigator Hood

Prices for a replacement hood can vary significantly. Remember that these prices do not include painting, which can add several hundred dollars to the total cost.

Replacement and Installation

Replacing the hood is a straightforward but two-person job. The main challenge is not the mechanical work, but the final alignment.

• Difficulty: 2 out of 5
• Estimated Time: 1.5 hours
• Tools Needed: Socket set, trim removal tool (for washer nozzle clips), a helper.

Basic Steps:

1. With a helper holding the hood, use a marker to outline the position of the hinge bolts on the hood. This will give you a starting point for aligning the new hood.
2. Disconnect the windshield washer fluid hose from the nozzles on the underside of the hood.
3. While the helper supports the full weight of the hood, remove the bolts (usually two per hinge) connecting the hood to the hinge arms.
4. Lift the old hood off the vehicle.
5. With your helper, place the new hood onto the hinges and loosely install the bolts.
6. Gently close the hood and check the alignment. Adjust the hood by loosening the bolts and shifting its position until the gaps with the fenders and front fascia are even on all sides. This step requires patience.
7. Once aligned, tighten the hinge bolts to spec and reconnect the washer fluid hose.

OEM Part Numbers

The primary OEM part number for the hood assembly fits all 2018, 2019, 2020, 2021, 2022, 2023, and 2024 Lincoln Navigator models, including both standard and long-wheelbase (L) versions.

• Hood Assembly: JL7Z-16612-A

The part numbers listed in the initial prompt (JL1Z7824630B, JL7Z7824631B, etc.) are for rear door shells and are not correct for the hood.

Frequently Asked Questions