A Guide to the Rack and Pinion Assembly for the 2009-2016 Lincoln Navigator
Steering feels loose or is making noise? Here is what to know before replacing your Navigator's rack and pinion.
- A failing rack and pinion is a critical safety issue; do not drive if your steering feels loose, binds, or is leaking heavily.
- For 2015 models, check if your vehicle is affected by recall 15S18 for potential loss of power steering assist.
- Aftermarket remanufactured brands like Cardone and BBB have very inconsistent quality; an OEM part is more expensive but far more reliable.
- A four-wheel alignment is mandatory after replacing the rack and pinion to prevent unsafe handling and tire damage.
Common Symptoms of a Failing Rack and Pinion
A bad rack and pinion makes your vehicle's steering unreliable. If you notice any of these signs, it's time to have your steering system inspected.
🎬 Watch: 8 common signs your rack and pinion is failing- Power Steering Fluid Leaks: This is the most common sign. You may find puddles of pink or reddish fluid under the front of your Navigator. Leaks can happen when seals inside the rack wear out, allowing fluid to collect in the rubber bellows (boots) at each end. Eventually, these boots will burst.
- Steering Feels Too Tight or Too Loose: Difficulty turning the wheel, especially when first starting the vehicle, can point to a damaged steering rack. Conversely, if your steering wheel feels disconnected or has a lot of "play," it could mean the internal gears are worn. 🎬 See how to troubleshoot steering stiffness, pulls, and wandering
- Clunking or Grinding Noises: Unusual noises when you turn the steering wheel often indicate loose or worn-out components inside the rack and pinion assembly.
- Vehicle Wanders or Pulls: If you constantly have to make small corrections to keep your Navigator driving straight, it could be caused by a worn rack and pinion.
Known Issue for 2015 Models
Ford issued a recall (NHTSA #15V340, Ford #15S18) for some 2015 Lincoln Navigator models. An electrical connection issue in the steering gear could cause a sudden loss of power steering assist. The fix is a software update performed by a dealer. While this doesn't mean the rack itself is bad, it's a critical safety issue to be aware of for this specific model year.
Choosing the Right Aftermarket Rack and Pinion
When replacing the rack and pinion on your Navigator, you have several options. The choice between a new OEM (Original Equipment Manufacturer) part and an aftermarket part often comes down to cost versus quality assurance.
- OEM: An OEM rack is identical to the one your Navigator was built with. It guarantees perfect fit and function but is the most expensive option.
- New Aftermarket: These are brand-new parts from companies other than the original manufacturer. Quality can vary widely, as many are produced to meet a low price point.
- Remanufactured Aftermarket: This is the most common type of aftermarket replacement. Companies take old OEM racks, replace worn components like seals and bushings, and test them. However, the quality is inconsistent. Forum discussions show that brands like Cardone and BBB Industries have mixed reviews; some users have good experiences, while others report premature leaks or steering play right out of the box. This makes choosing a remanufactured part a gamble.
What is a Core Charge? Most remanufactured rack and pinions have a "core charge." This is a deposit you pay when you buy the part. You get the deposit back when you return your old, broken rack and pinion to the seller. This ensures the manufacturers have a supply of old parts to remanufacture.
Estimated Replacement Costs
The cost to replace a rack and pinion varies based on the part you choose and local labor rates. An alignment is always required after replacement, which adds to the total cost.
| Item | Estimated Cost |
|---|---|
| New OEM Part | $1150 - $2100+ |
| New Aftermarket Part | $192 - $1027 |
| Remanufactured Part | $200 - $600 |
| Shop Labor | $280 - $420 |
| Total Estimated Job | $475 - $2500+ |
Frequently Asked Questions
Do I need a wheel alignment after replacing the rack and pinion?
Yes, absolutely. Replacing the steering rack disconnects the steering system from the wheels. A four-wheel alignment is mandatory to ensure your Navigator drives straight and does not cause premature tire wear.
What is the difference between the steering rack and the steering column?
The steering column is inside the vehicle's cabin and connects the steering wheel to the firewall. The steering rack is in the engine bay and physically turns the wheels. Noises inside the cabin are often column-related, while noises from under the front of the vehicle are more likely the rack.
Is it better to buy a new or remanufactured aftermarket rack?
This is a trade-off. Many "new" aftermarket racks are made by unknown manufacturers with potential quality control issues. Remanufactured racks from established brands like Cardone or BBB Industries are rebuilt OEM units, but their quality can be inconsistent. If choosing aftermarket, select a brand with a good warranty and be prepared for the possibility of a defective part.
Can I replace the rack and pinion myself?
This is an advanced repair. It requires lifting the vehicle, disconnecting hydraulic lines (which is messy), and separating suspension components. It also requires special tools and a mandatory wheel alignment afterward. For most owners, this job is best left to a professional mechanic.
🎬 Watch this step-by-step guide to replacing the steering rackHelpful Videos
Technical Specifications
OEM Part Numbers: AL1Z-3504-A FL1Z-3504-B FL1Z-3504-D
This is a hydraulic power steering rack and pinion assembly. It is not compatible with models that have electronic power steering (EPAS), which became standard on later generations.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Lincoln Navigator: