Question about 2004 Lincoln Town Car

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Service engine soon light comes on when i start the car.

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Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check. These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Posted on Oct 15, 2010

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Posted on Jan 02, 2017

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How to replace 2003 Mitsubishi Galant ES service engine soon light bulb


most people would like it that way , but how do you know it is needing replaced .if you get it serviced properly it should never be needed

Sep 29, 2017 | Mitsubishi Cars & Trucks

1 Answer

How do you reset the service engine soon light


Put the key into the ignition and turn it to "Run." Don't start the engine. Press down slowly and fully on the gas pedal, then release it. Do this three times in five seconds. Watch for the "Service Engine Soon" light to start blinking. This indicates that the system is resetting itself. Turn the ignition to "Off" and wait one minute. Start the Century's engine. The Service Engine Soon light will flash for a moment, then turn off. If it doesn't do this, repeat the process.if all else fails...Disconnect your battery for one minute and then reconnect it again that should reset it, if the problem that you have in your car is still there then that light will come on again after whille then you gona need to run diagnostics on your car to find the problem if it will not come on again then that should take care of it.9-08-2006Let me tell you about my experience with my 1995 Buick Century.When my buick sits for a while while running, the radiator fan comes on, you know?Well, after the fan does its thing, SOMETIMES the "SERVICE ENGINE SOON" light comes on.THEN.....when this happens again, it may take a couple times of after the fan comes on, then....the light goes off !!!Its like it needs to go thru some sort of "CYCLE" , THEN THE LIGHT GOES OFF...Who knows though,you may have LEGITIMATE problems with your car.good luck.

Aug 17, 2014 | 2003 Buick Century

1 Answer

Why does my service engine soon light come on when the car is working properly but not when it doesn't?


The light is in test mode when you start, so you can check the bulb is working. The light has nothing to do with whether you stall it only estimates whether you need a service based on time, number of starts (and probably some other parameters - perhaps someone else knows what they are).

May 14, 2014 | 1999 Buick Century

1 Answer

I have a 2001 mustang bullitt that is showing service engine light on. Took it to mechanic and he put 2 different machines on it to show code for problem. No codes coming up and he can't turn off the...


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.

Jul 18, 2017 | 2001 Ford Mustang

1 Answer

My Service Engine Soon light lit up on my 2004 Buick Century. Typically, I've had it come on if I didn't tighten the gas cap all the way. Usually, if that is the case, it turns off after starting and...


Do you have a "Check engine" light or a "Service engine soon" light.Could be you are just being reminded to get an oil change as the "Service engine soon" light will come on automatically at a certain mileage after it was last reset.Your vehicle handbook in the glove compartment should tell you how to reset your "Service engine soon light" yourself. If you have a "Check engine" light on,you can have someone read your "codes" and find out what system the vehicle is having a problem with.

Apr 28, 2017 | Buick Century Cars & Trucks

1 Answer

The "service engine soon" light just appeared on my 1997 Dodge Neon after I put in some oil. I bought the car second hand so I am not sure what oil was used before. I am wondering if anyone knows why it...


its because the car is due for a service soon,it gives you about 800 to 1000m warning of an impending bill .....
if you did lots of stop/start motoring the "service engine soon" light would come on sooner than lots of highway motoring.
just adding oil is not servicing the engine....and once done it needs reseting...

Aug 14, 2010 | 1997 Dodge Neon

1 Answer

When I start my 2001 alero the anti-lock, traction light, service engine soon, service vehicle soon lights all stay on all the time. But my car seems to be running fine. Why is this?


the anti-lock and traction lights will come on together if there is a common problem with the two, since they are closely related. may be a wheel speed sensor or something similar. the service engine soon light indicates a problem with the engine computer, can be anything from an emission system problem or an engine performance problem. all of these lights can come on with no apparent running problems on the car. the service vehicle soon light is basically a maintenance reminder, an oil change light. take the car into a shop and have the codes read for these lights.

Feb 23, 2010 | 2001 Oldsmobile Alero

3 Answers

Dies when started cant find check engine light


The service engine light is the check engine light. Different name for the same thing.

Feb 22, 2010 | 2002 Ford E350

2 Answers

Service engine soon light keeps comming on


Have had the car serviced lately? Oil change, tune up, things of that nature? It may be time to do that stuff. Does that car have a "Service Engine Soon" light and a "Check Engine" light? If the car has been serviced recently and the "Service Engine Soon" light is coming on, it's because who ever serviced it, did not reset the light. To reset the light, this works on most GM cars, turn the ignition to the "on" position DO NOT START THE CAR!!! Now within 5 seconds push the gas pedal to the floor and release it 3 times. That should reset the light if that don't work, you may want see what it says in the owners manual. Or you may have to take it to a shop. If the "Check Engine" light is coming on then there is a problem with the vehicle and there should be a "code" in the computer. Most auto parts stores will put a scanner on your car and read the codes for free. Those lights are there for a reason, if ignore them your car will let you down.

Jan 23, 2010 | 1999 Pontiac Grand Am GT

1 Answer

Car seemed hesitant when started service engine soon light on


There are many things that can cause the light to come on. Generally if it is serious most 'check engine' or 'service engine' lights will blink. The simplest (and cheapest) method to diagnose the problem is to take the car to AutoZone and they will read the computer codes free of charge and tell you exactly what it is (such as the oxygen sensor got a bad reading and needs a reset, or its time for an oil change... etc.)

Nov 13, 2009 | 1999 Pontiac Grand Prix

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