Question about 2002 Ford Explorer

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My service engine soon light came on in my 2002 ford explorer what can it be?

Posted by Anonymous on

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  • Ford Master
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The service engine soon/check engine (yellow light) comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system you will seldom feel the car engine run any different, there are about 200 possible faults that turn the light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen and Autozone parts stores do this testing for free.

Posted on Dec 28, 2010

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  • Master
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It can "be" one of about 1000 conditions that would cause the light. Anything from leaving your gascap off, to a reminder about an oil change, or something serious like a failed engine component, or a knock sensor being activated.

You will HAVE to have the OBD codes read to determine the cause of the indicator.

Most national Auto Parts chains will check them for free with their code readers.
The code (ex P04133) determines the sensor or problem that needs attention.

Have the codes read - and if they cannot give you an answer - return here and post the code(s) for further help.

Thanks!!

Posted on Dec 28, 2010

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Posted on Jan 02, 2017

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SOURCE: reset service engine soon light 2004 ford mustang

It is not recomended to disconnect the battery and turn the light switch or horn or anything else on in order to clear codes stored in memory because any settings stored in the computer may be lost too.Go to autozone and rent the scanner to do it yourself.It is very easy,just connect the scanner to the connector located below the dashboard, turn the ignition on but not the engine and follow the prompts then when it says: clear codes?hit yes or enter and that is it.This is the safest way to do it.

Posted on May 26, 2009

  • 135 Answers

SOURCE: i need to reset service engine soon light. How do i do this?

you have to have a code reader or you can take to your local parts store(autozone) and they will scan and clear for free

Posted on May 02, 2009

  • 1 Answer

SOURCE: Service Engine Soon light on 2002 BMW X5

go back & sleep with the mechanic, that always works for my sister.

Posted on Jan 02, 2009

  • 580 Answers

SOURCE: 2002 BMW 530i service engine light on

It could be any number of things you will nee the codes read to be sure. If yor mileage is near one of the recommended services points 50,000, 100,000 or 150,000 this could be the cause. Again you won't know or sure ill codes are read Good Luck With This

Posted on Jul 09, 2009

  • 124 Answers

SOURCE: how do i reset the service engine soon light on

disconnect the battery for 2 min.

Posted on Mar 11, 2009

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1 Answer

Service engine soon light has come on and remain on, No visible problems driving the vehicle,


"Service Engine Soon" anounces the need of service of your car normally. Please, check your Owner´s Manual and verify the last time you sent the car to service and when, the next is coming according the manufacturer. Service shop will reset the ligth once the service is executed.

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If it is a service engine soon light, get the problem diagnosed and repaired and the light will go off as the computer will no longer detect a problem.
If it is an oil change needed light, read your manual and find the button to and instructions turn it off, most likely in or near a fuse box.

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Go to an autozone they can read the codes and reset the light. They do this as a free service. If there is a problem and you dont repair it the light will return. Sometimes the light can come on for no apparent reason (no code present) a loose gas cap can trigger the check engine light.

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