2003-2005 Lincoln Aviator Rear Brake Rotors: Diagnosis, Replacement, and Costs
This guide covers common failure symptoms, replacement costs, and what to inspect when buying used rear brake rotors for the 2003-2005 Lincoln Aviator.
- The most common symptom of a bad rear rotor is a pulsing or vibrating brake pedal.
- Always replace brake pads when replacing rotors to ensure proper performance and prevent premature wear.
- When buying used, you must measure the rotor's thickness with a micrometer to ensure it's above the minimum safety spec.
- The original Ford part 5C5Z2C026A is superseded by 5C5Z2C026B; Motorcraft part number is BRRF-44.
Symptoms of Bad Rear Brake Rotors
Worn or failing brake rotors can present several distinct symptoms. Paying attention to these signs is crucial for maintaining your vehicle's safety.
Brake Pedal Pulsation or Vibration
The most common symptom of a bad rotor is a vibration or pulsating feeling in the brake pedal when you apply the brakes. This is typically caused by warped rotors, where the surface has become uneven due to excessive heat and wear. As the brake pads press against the uneven surface, you feel the variation through the pedal.
Grinding or Squealing Noises
A harsh grinding sound during braking often means the brake pads have completely worn away, and the metal backing plate is now scraping directly against the rotor. This metal-on-metal contact quickly damages the rotor, creating deep grooves. Squealing noises can also occur if the rotors are glazed or have uneven wear patterns.
Visible Damage to the Rotor Surface
A visual inspection can reveal a lot about the health of your rotors. Look for deep grooves, score marks, or significant rust pitting on the surface. Blueish discoloration is a sign that the rotors have been overheated, which can compromise their structural integrity and lead to warping.
Increased Stopping Distance
If you notice your Aviator is taking longer to stop than it used to, worn or damaged rotors could be a contributing factor. When the rotor surface is compromised, it reduces the friction needed for the brake pads to work effectively, leading to decreased braking performance.
Known Issues, TSBs, and Recalls for 2003-2005 Lincoln Aviator Brakes
While the search for recalls and Technical Service Bulletins (TSBs) specific to the rear brake rotors on the 2003-2005 Lincoln Aviator did not yield specific results, some general brake-related information is available. Owners have reported issues with rear brake noise, and some TSBs for other Ford models mention grinding noises caused by rust accumulation on the discs that the pads cannot remove. There are no major safety recalls specifically for the rear brake rotors on this vehicle. One recall for the 2003 model year involved the transmission shift cable, not the brake system.
Important: While this guide focuses on rotors, the entire brake system (pads, calipers, hoses, and fluid) should be inspected regularly. A problem in one component can cause damage to others.
Buying a Used Rear Brake Rotor: What to Check
Brake rotors are considered a wear item, and buying new aftermarket rotors is often affordable. However, if you are considering a used OEM rotor to save money or maintain original parts, a thorough inspection is critical. A low-mileage used rotor can be a viable option if checked carefully.
Physical Inspection Checklist:
- Surface Condition: The rotor surface should be smooth and even. Run your finger across it to feel for deep grooves, scoring, or pitting. Reject any rotor with significant surface damage.
- No Signs of Overheating: Look for any blue or dark discoloration on the metal. This indicates the rotor has been overheated and may be warped or weakened.
- Check for Cracks: Inspect the entire rotor, especially around the lug holes and on the friction surface, for any visible cracks. A cracked rotor is unsafe and must be discarded.
- Measure the Thickness: This is the most important check. Use a micrometer to measure the rotor's thickness. The minimum thickness specification is usually stamped on the rotor hub. If the rotor is at or below this minimum thickness, it cannot be safely used or resurfaced.
- Verify Part Numbers: Ensure the part number matches your vehicle's requirements. The original OEM part number for the rear rotor is often cross-referenced as 2C5Z2C026AA. The superseding Ford part numbers are 5C5Z2C026A and 5C5Z2C026B. The Motorcraft part number is BRRF-44.
Cost Comparison for 2003-2005 Lincoln Aviator Rear Brake Rotors
Prices for brake components can vary based on brand, quality, and where you purchase them. Labor costs also differ by region and shop.
| Part/Service | Estimated Cost (Per Rotor or Axle) | Notes |
|---|---|---|
| New OEM (Ford/Motorcraft) | $75 - $130 per rotor | Purchased from a dealership or OEM parts supplier. Offers guaranteed fit and quality. |
| New Aftermarket | $35 - $95 per rotor | Widely available from retailers like AutoZone, Advance Auto Parts, and RockAuto. Quality can vary significantly between brands. |
| Used OEM | $25 - $50 per rotor | Cost-effective but requires careful inspection for wear and damage. |
| Shop Labor (Rear Axle) | $150 - $250 | This covers replacing pads and rotors on both rear wheels. |
| Complete Professional Job (Pads & Rotors, Rear Axle) | $300 - $600 | Includes parts and labor for a complete rear brake job at a repair shop. |
Frequently Asked Questions (FAQ)
Do I have to replace pads and rotors at the same time?
It is highly recommended. Installing new pads on old, worn rotors can lead to uneven pad wear, noise, and reduced braking performance. Most technicians will insist on replacing both to ensure a safe and effective brake job.
What is the difference between Ford part numbers 5C5Z2C026A and 5C5Z2C026B?
Part number 5C5Z2C026A was the original part, which has been superseded by 5C5Z2C026B. This usually means Ford made a minor revision or improvement to the part or changed suppliers. For replacement, 5C5Z2C026B is the correct and current OEM part to use.
Can I resurface my old rotors instead of replacing them?
Sometimes. A rotor can be resurfaced (machined) to smooth out its surface, but only if it is still above the minimum thickness specification after machining. With the low cost of new aftermarket rotors, and the labor cost of resurfacing, it is often more economical and safer to simply replace them.
What does installation of a rear rotor involve?
The process involves safely lifting and supporting the vehicle, removing the wheel, unbolting the brake caliper and its mounting bracket, and then sliding the old rotor off the hub. The new rotor is installed, and the components are reassembled. The job is straightforward for someone with basic mechanical skills.
Technical Specifications
OEM Part Numbers: 5C5Z2C026A 5C5Z2C026B 2C5Z2C026AA
Rotor Style: Vented Rear Rotor Outside Diameter: 12.71 in (322.8 mm) Material: Cast Iron
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 Aviator:
- Symptoms of Bad Rear Brake Rotors
- Brake Pedal Pulsation or Vibration
- Grinding or Squealing Noises
- Visible Damage to the Rotor Surface
- Increased Stopping Distance
- Known Issues, TSBs, and Recalls for 2003-2005 Lincoln Aviator Brakes
- Buying a Used Rear Brake Rotor: What to Check
- Physical Inspection Checklist:
- Cost Comparison for 2003-2005 Lincoln Aviator Rear Brake Rotors
- Frequently Asked Questions (FAQ)
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