F 250 2WD Pickup V8-7.3L DSL (1990)
Glow Plug Wait-To-Start Indicator: Description and Operation
WAIT TO START LAMP
The "WAIT TO START" lamp comes on when the ignition switch is turned to the RUN position, and the engine is below normal operating temperature.
It will remain lit for 4 to 10 seconds, depending on engine temperature. If engine is at or above normal operating temperature the lamp will not turn on.
NOTE: If the ignition switch is left in the ON position for an extended period of time or the engine is not started within the two minute cycling
time, the glow plug system must be reset by turning the ignition switch to the OFF position.
FUEL FILTER RESTRICTION WARNING LAMP
This engine is equipped with a fuel filter restriction sensor. A restriction indicator lamp is located in the instrument cluster to alert the operator.
If the lamp comes on during normal engine operation, replace the filter as soon as possible.
WATER IN FUEL WARNING LAMP
The "WATER IN FUEL" warning lamp should turn on when the ignition switch is in the START position to indicate proper lamp and sensor function.
The lamp will come on if the fuel filter/water separator has a significant amount of water in it. If the lamp comes on during normal engine operation,
drain the fuel bowl in the filter as soon as possible. Water in the fuel could cause extensive damage to the fuel injection system.
