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1999 LINCOLN Navigator
Vehicle Summary
The 1999 Lincoln Navigator, manufactured by Ford Motor Company, is a robust SUV equipped with a 5.4L V8 engine delivering 300 horsepower. This 4WD vehicle features a dual overhead cam design and sequential electronic fuel injection. With a gross vehicle weight rating of up to 8,000 lbs, it's built for both performance and utility. Safety features include 1st-row front airbags and manual seat belts.
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1999 LINCOLN Navigator
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Complete Specifications
Known Issues for This Vehicle
Oil leaks
The 1999 Lincoln Navigator with a Ford V8 engine is known to develop oil leaks around the valve covers, oil pan gasket, and rear main seal.
Coolant leaks
The V8 Windsor engine may experience coolant leaks from the intake manifold gaskets or the heater hose connections.
Ignition coil failure
The ignition coils on these engines can fail, leading to misfires and poor engine performance.
Timing chain noise
Over time, the timing chain and related components can wear out, causing a rattling noise, particularly on startup.
Fuel injector issues
SEFI fuel injectors may get clogged or fail, resulting in rough idling and poor fuel economy.
Spark plug blowout
The V8 engine has been known to occasionally blow out spark plugs from the cylinder head, causing engine misfires and potential damage.
Egr valve problems
The Exhaust Gas Recirculation (EGR) valve can become clogged or fail, leading to rough idling and increased emissions.
Throttle body issues
The throttle body may become dirty or fail, which can cause poor acceleration and stalling.
Vacuum leaks
Aging vacuum lines can crack or disconnect, leading to rough idling and poor performance.
