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Excursion - King of SUVs 2000 - 2005 Ford Excursion

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Old Today, 12:10 PM
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KOEO - SES stays on, cranks over, no start...

My 6.8L is experiencing an issue that I figured would be worthy to pass by you guys/gals...

Truck hasn't been ran in a few months...it ran fine when it was parked and has sat longer than this with no issue before. Battery voltage fine...

I get in, insert the key, turn it over and it cranks but doesn't fire...hmmm, why is that, I wonder? I notice the SES never goes out before I crank the truck over.

I unplug the battery, tried to clear any fault codes with my handheld tuner (which there was nothing showing up) and turned the ignition on. I left the key in the on position but didn't try to start it. The SES lights never turns off.

I am assuming that if the SES light stays on, the ecu will not allow the truck to start...is that true? What components have an effect on the SES light when you first turn on the key? Anyone got a "simple" explanation where they have seen this before?

Thanks.
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Old Today, 12:19 PM
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Technologiq Technologiq is offline
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Jlynnes
Quote:
Originally Posted by rch10007 View Post
My 6.8L is experiencing an issue that I figured would be worthy to pass by you guys/gals...

Truck hasn't been ran in a few months...it ran fine when it was parked and has sat longer than this with no issue before. Battery voltage fine...

I get in, insert the key, turn it over and it cranks but doesn't fire...hmmm, why is that, I wonder? I notice the SES never goes out before I crank the truck over.

I unplug the battery, tried to clear any fault codes with my handheld tuner (which there was nothing showing up) and turned the ignition on. I left the key in the on position but didn't try to start it. The SES lights never turns off.

I am assuming that if the SES light stays on, the ecu will not allow the truck to start...is that true? What components have an effect on the SES light when you first turn on the key? Anyone got a "simple" explanation where they have seen this before?

Thanks.
I think you need to try and get your hands on a better code reader first off. Many auto part chains have ones you can use.
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Old Today, 12:19 PM
 
 
 
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