Service engine soon:
The
Service
engine soon
indicator light
illuminates when the ignition is first
turned to the ON position to check
the bulb and to indicate whether the vehicle is ready for
Inspection/Maintenance (I/M) testing. Normally, the
⬙
Service engine soon
⬙
light will stay on until the engine is cranked, then turn itself off if no
malfunctions are present. However, if after 15 seconds the
⬙
Service
engine soon
⬙
light blinks eight times, it means that the vehicle is not
ready for I/M testing. See the
Readiness for Inspection/Maintenance
(I/M) testing
in the
Maintenance and Specifications
chapter.
Solid illumination after the engine is started indicates the On Board
Diagnostics System (OBD-II) has detected a malfunction. Refer to
On
board diagnostics (OBD-II)
in the
Maintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately by your authorized dealer.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Electronic throttle control
(if equipped):
Illuminates when
the engine has defaulted to a
’limp-home’ operation. Report the
fault to a dealer at the earliest opportunity.
On vehicles equipped with a message center, “ENGINE FAILSAFE
MODE” will be displayed, refer to
Message Center
in the
Driver
Controls
chapter.
2007 F-150
(f12)
Owners Guide (post-2002-fmt)
USA
(fus)
Instrument Cluster
15
