Lincoln Navigator Problems
RepairPal has identified the most common problems with the Lincoln Navigator based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
The lower intake manifold is plastic and may come apart completely.
Corrosion can form at the grounding points near the battery. There may be electrical faults and the engine may crank but not start.
Erratic engine coolant temperature or intermittent overheating can be caused by corrosion inside the water pump. The impeller may spin on the water pump shaft or the impeller may corrode. Either condition reduces coolant circulation resulting in engine overheating.