1998 Lincoln Navigator Owner's Manual - Page 143
1998 Lincoln Navigator Manual
Page 143 highlights
Maintenance and care How fail-safe cooling works If the engine overheats, the engine will automatically switch from eight to alternating four cylinder operation. Each disabled cylinder acts as an air pump and cools the engine. When this occurs, the engine coolant temperature gauge will move into the red area and the light illuminates. H C The check engine light will illuminate, indicating that vehicle service is required. The vehicle will still operate, but will have limited engine power and no air conditioning capability. Continued operation will increase engine temperature and cause the engine to completely shut down. The vehicle will coast to a stop. As the engine temperature cools, the engine may be re-started. Take your vehicle to a service facility as soon as possible to minimize engine damage. When fail-safe mode is activated • Pull off the road as soon as possible. • Immediately turn the engine off to prevent severe engine damage. • Wait for the engine to cool. • Check the coolant level. 143