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My ford expedition 99 model has a warning on dashboard which states "service engine soon". What is the cause of it

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The engine management system has detected an error. What you do now is pull the error codes, then you will have something to investigate....Some times you can get a lube shop to pull your codes for free, then research what the code means...and start fixing.

Posted on Oct 06, 2010

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Posted on Jan 02, 2017

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What does the service engine light mean on a 2015 Ford Edge


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

Jul 19, 2017 | Ford Cars & Trucks

2 Answers

For expedition 99, my dashboard light doesn't work anymore, I've tried finding what fuse to replace but unable to locate problem.


There are two fuse's , one is in the under hood fuse /relay center or as ford calls it Battery junction block and one in the central junction block Blown fuse(s): Battery junction box (BJB) Fuse 6 (15A) and central junction box (CJB) Fuse 18 (5A ,on the lids are the # locations .Are you saying that nothing lights , radio, heater controls , back lighting for the instrument cluster . No check engine light, or any other warning lights . Do all the gauges work ? CJB is located left side of dash . Check the fuse's ! 25309735-p0bbf4gezpmb21wjojjnal1o-3-3.gif

Dec 06, 2014 | Ford Expedition Cars & Trucks

1 Answer

1999 Ford Expedition


99 and 02 have different motor 5.4-4.6 some early model have the same size engine check 02 for its size and 99 if they are the same you will only have to change the platinum..

Apr 15, 2014 | Ford Expedition Cars & Trucks

2 Answers

I have a 2003 Ford Explorer. Recently I noticed thsat a warning light "Service Engine Soon" illuminated on my dash and wont go away. I've never seen this before and Ive owned the car since 2003. What'


Hi Dennis
The light is warning you that there is a problem with the Engine management system, I cannot and no one else online can tell you what the problem is. But I can advise you to take your car to a workshop and have it scan, the technician will tell you.

Good luck

Apr 07, 2014 | 2003 Ford Explorer

2 Answers

What's your problem?2004 ford expedition service engine soon light


I assume you resolved the issues by now

Check lights have been on all vehicles for 31 years,
so you shouldn't be asking about them

Does not matter what light comes on your dash

The procedure is always the same
Check for codes
Diagnose & repair code related issues first

Aug 18, 2012 | 2004 Ford Expedition

2 Answers

What does error code p0172 and p0174?


P0172 - Fuel Injection System Too Rich Bank 1 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connec
Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem.



P0174 - Fuel Injection System Too Lean Bank 2 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection
Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem. Bottom line possible defective Mass airflow sensor and or O2 sensor in cylinder bank number two.

Feb 21, 2011 | 1998 Ford Expedition

1 Answer

'99 Ford Expedition replaced manifold exhaust causes SES


Any shop ,should have a scanner that reads all codes. If Midas doesn't have the equip,they should shut down operations. Forget the dealer. In the future, forget the Midas and chain stores and find a good local shop before you need one. They skim off the easy work and now, your worse of than before,or had more than one issue, and they won't admit to the services they are capable of performing. Can't say they did anything wrong,you just have to continue on ,and work on the remaining issues. Best to forget Midas and not place fault anywhere, Just repair the veh properly and move on.

Mar 09, 2010 | 1999 Ford Expedition

1 Answer

1999 Ford Expedition XLT will not start


My ford expedition 99 has service engine soon light on. Hooked up to ODB and the equipment showed nothing; no power; checked on different car worked fine. what is cause. Equipment has worked on another ford expedition before by the way.

Jul 30, 2009 | 1999 Ford Expedition

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