Service Engine Soon
If the Service Engine Soon indicator light stays lit after you've started the engine, the On Board Diagnostics system (OBD) has detected a malfunction of the vehicle emissions control system. Contact your authorized dealer as soon as possible.
If indicator light is blinking, an engine misfire may be occurring, which could damage your catalytic converter. Drive in a moderate fashion (avoid heavy acceleration and deceleration), and have your vehicle serviced immediately.*
The Service Engine Soon indicator light illuminates when the ignition is first turned on (prior to engine start) in order to test the bulb, as well as 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 this light blinks eight times, it means that the vehicle is not ready for I/M testing.Check this link out Gary.
https://owner.ford.com/how-tos/vehicle-features/dashboard-instrument-cluster/warning-lamps-and-indicators.html
SOURCE: Service Engine Soon light came on
This means it's time for a service..But have it diagnosed with a computer and maybe sometimes resetting it solves this problem.If the light comes back again then you need a servicing of the engine.
SOURCE: service engine light came on. What does this
This could be a number of things, many things will trigger a check engine light. Start with the obvious, is the fuel cap on tight (this will cause a small evap leak and will set the light) or you can go to the local parts store ( Autozone, Checkers, etc..) and they will scan it for free and let you know what is causing the light to come on. Hope this helps
SOURCE: what does service code p1414 mean on a 1996 ford
Secondary Air Injection system = SMOG pump
Check for fuses or stuck relay
SOURCE: 1998 Ford Expedition Eddie Bauer SERVICE ENGINE SOON light
Need to have code check. Most likely it is o2 sensor.
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