There is a CEL, Check Engine Light, on the 1989 Thunderbird.
The service engine light is the same thing as a check engine light.
Yes, the Service Engine Soon light is the same as the Check Engine light.
Yes.
No, it won't.
engine light
Yes.
If an check engine light does not come on it is a good thing. When your check engine light comes on, it means you need service done on your vehicle.
It has a " service engine soon " warning light that illuminates when the engines emission control system requires service and for a few seconds when the ignition key is in the run position before starting the engine . It is located directly below the " door ajar " warning light , just to the left of the fuel gauge
The service engine soon is the same as a check engine light. It has nothing to do with an oil change.
They are the same thing.
Check
On a 2002 Ford Expedition : The " check engine " light is the " SERVICE ENGINE SOON " light just to the left of the fuel gauge