2005 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
2005 · All trims · All engines
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2005 Lincoln Navigator has 6 documented known issues, with 3 rated critical. The most serious are 5.4L 3V Triton Two-Piece Spark Plug Breaks on Removal ($200-$1,200 repair), Navigator Rear Air Suspension Bag/Compressor Failure ($700-$2,400 repair) and Air Ride Suspension Compressor Burnout from Air Bag Leaks ($400-$2,200 repair). Across all issues with published estimates, repair costs range from $100 to $2,400. DIY maintenance guides at au7o.io.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST
Ford Motor Company (Ford) is recalling certain 2016-2017 Ford Expedition, Lincoln Navigator, and 2016-2018 F-150 vehicles equipped with 3.5L Ecoboost engines. The brake master cylinder may allow brake fluid to leak from the front wheel circuit into the brake booster.
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR
Ford Motor Company (Ford) is recalling certain 2015-2017 Ford Expedition and Lincoln Navigator vehicles. The front blower motor located behind the glove box may fail.
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
Ford Motor Company (Ford) is recalling certain 2015-2017 Lincoln Navigator vehicles. The LED logo lights on the exterior mirrors may short circuit.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2005 Lincoln Navigator has 6 documented issues. The most frequently reported are: 5.4L 3V Triton Two-Piece Spark Plug Breaks on Removal, Navigator Rear Air Suspension Bag/Compressor Failure, Air Ride Suspension Compressor Burnout from Air Bag Leaks. Of these, 3 are rated critical and should be addressed promptly.
The 2005 Lincoln Navigator has 6 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 3 issues are rated critical: 5.4L 3V Triton Two-Piece Spark Plug Breaks on Removal and Navigator Rear Air Suspension Bag/Compressor Failure and Air Ride Suspension Compressor Burnout from Air Bag Leaks. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Lincoln Navigator issues range from $100 to $2,400, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 5.4L 3V Triton Two-Piece Spark Plug Breaks on Removal, typically costs $200-$1,200 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
Factory Motorcraft PZT-2FE two-piece platinum plugs in the 5.4L 3V Triton seize in the head from carbon buildup around the ground-electrode shield. Attempting normal removal cracks the plug, leaving the lower shell stuck in the cylinder head and requiring specialized extractor ki… Repairs typically run $200-$1,200. Severity: high.
2003-2017 Navigators with the optional/standard rear air suspension (and the 2003+ Expedition with the same system) develop air-bag leaks at the bag-to-piston seal as the bag rubber ages and cracks. Symptoms: rear of vehicle sagging overnight, compressor running constantly, error… Repairs typically run $700-$2,400. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
Ford Motor Company (Ford) is recalling certain 2017-2018 F-150, Expedition, and Lincoln Navigator vehicles. The brake master cylinder may allow brake fluid to leak from the front wheel circuit into the brake booster.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Ford Motor Company (Ford) is recalling certain 2015-2019 Lincoln MKC, Mustang, F-350 SD, F-250 SD, F-450 SD, 2015-2017 Lincoln Navigator, Expedition, 2015-2018 Edge, Transit Connect, 2016-2019 F-550 SD, Transit, 2017-2019 Econoline, and 2019 Ranger vehicles. The rearview camera may display a distorted, inverted, or blank image when the vehicle is in reverse.
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The air suspension's rubber air springs develop pinhole leaks at the upper crimp ring after 8-12 years. 4WD models use a 4-corner system; 2WD models use rear-only. The OEM Continental/AMK compressor (mounted with integrated dryer) runs continuously trying to maintain ride height,… Repairs typically run $400-$2,200. Severity: high.
The 5.4L 3-valve Triton V8 in 2005-2008 Navigator (and shared F-150/Expedition) uses a two-piece spark plug (Motorcraft SP-515/SP-546) that frequently snaps off in the cylinder head during removal. The lower portion stays welded into the head by carbon, leaving the upper electrod… Repairs typically run $400-$1,500. Severity: medium.
Second- and third-generation Navigators with the 5.4L 3-valve Triton V8 use a unique two-piece spark plug whose long electrode shell extends below the threads. Carbon deposits cake into the gap over high mileage, gripping the plug so tightly that the shell breaks off during remov… Repairs typically run $300-$1,500. Severity: medium.
Second- and third-generation Navigators commonly suffer failed HVAC blend door actuators. The small electric motor that positions the temperature/mode doors strips its internal gears, producing a repetitive clicking or 'whir-click' noise from behind the dash or rear panel and cau… Repairs typically run $100-$400. Severity: low.
