My navigator 1999 service engine soon light came on

Service engine soon light is on indicating a problem with your engine. Take it to somewhere like Autozone (it is free to check code) to see what the code and problem is, then fix the problem or the light would just keep coming on every time till it is fixed.. You can use a scanner to read and reset the light, code.

service engine soon

Heidi if you take your Lincoln to Auto Zone they do not charge for checking out service engine soon codes.

There is a diagnostic procedure in the factory service repair manual for engine light lit ,no codes . Did you take it to ford dealer ? MIL - is referring to check engine , service engine soon etc...

• MIL always on when engine is running (no DTCs):
• MIL circuits

• For Focus, Mustang, Town Car, Continental, LS6/LS8, Escape, Windstar, F-150, Expedition and Navigator/Blackwood:
• Instrument Cluster, Section 413-01 of the Workshop Manual.
• All Others:
• GO to NB1

SERVICE ENGINE SOON indicator After the engine is started, the SERVICE ENGINE SOON indicator will prove out for a duration of three seconds. If the instrument cluster does not receive a message from the PCM within five seconds, the instrument cluster will illuminate the SERVICE ENGINE SOON indicator and log a diagnostic trouble code (DTC).

• An indicator is inoperative/always on - SERVICE ENGINE SOON

• Circuitry.
• Bulb.
• Instrument cluster.
• PCM.

• GO to Pinpoint Test P .

PINPOINT TEST P: AN INDICATOR IS INOPERATIVE/ALWAYS ON - SERVICE ENGINE SOON CONDITIONS DETAILS/RESULTS/ACTIONS P1 CARRY OUT THE INSTRUMENT CLUSTER SERVICE ENGINE SOON INDICATOR ACTIVE COMMAND Trigger the HEC active command MIL.

• Did the SERVICE ENGINE SOON indicator illuminate?

Yes REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.

No INSTALL a new instrument cluster; REFER to Instrument Cluster . CLEAR the DTCs. REPEAT the self-test.

Google --- OBD2 your veh & the code

Can't learn anything by someone telling you

Read it & Study

The light means pretty much what it says. This light is a warning to let you know that your Engine Management System is malfunctioning. The onboard computer will need to be scanned to find out which of the many systems monitored by your computer is malfunctioning.

You need to have it scanned. There are a couple of things that could cause the idle to low. One is the Idle air control and the other is the mass air flow. Also the Throttle Position Sensor and the air air temp sensor. Also the EGR, exhaust gas recirculate. Get the picture.

These engines are totally computer controlled, and the service engine soon light is there to tell you that you have a problem. Most Advance auto or Autozones will scan it for free, but take the code it gives and research the code , don't just replace a part.

Hope this helps

I have a 1999 Rover with the 4.6. I bought a code reader for $150 and erased the code. Its paid for itself a hundred times. Did you fix the reason the service engine light problem first? Some auto part stores will read for you. I don't know if they will reset it for you at the same time. If problems not fixed the light will reappear in a very short period of time. Let me know if I can answer anything else. Good luck

My service engine soon light stays on. The vihicle shakes as it idles. It act it wants to shut off. What's the problem

a multitude of problems...must attach scan tool to read fault codes