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Old 06-23-2014, 04:46 PM
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check engine light

Check engine light came on but no stored messages truck is running fine all Ok(3.0 liter diesel) anybody have any ideas

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Old 06-23-2014, 05:47 PM
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Re: check engine light

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Originally Posted by plainmek View Post
Check engine light came on but no stored messages truck is running fine all Ok(3.0 liter diesel) anybody have any ideas
Is the light blinking or solid?

If solid, it MAY go away after a few normal start/run cycles. If it is still on check codes and use your warranty.

If blinking, take it for service right away.

If you can find a cheap scanner with reset, hook it up for a bit more information than an idiot light can give.
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Old 06-23-2014, 10:25 PM
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Re: check engine light

mine did that every time it got low on gas (shortly before the gas light would come on)
never stored codes... next time it comes on, go to the dealer and have them read it while its on (dont turn off the truck so it doesnt reset the light)
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Old 06-29-2014, 08:02 AM
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Re: check engine light

There is a TSB (technical service bulletin) for a software update (not UConnect) that is supposed to fix a bunch of false check engine lights. There's another thread somewhere that has the details. My only warning is I got a "incorrect DEF, see dealer" message after getting the update and now the dealer wants to take apart my car.


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