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2003 expedition engine code po320

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Old May 28, 2008 | 03:40 PM
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brinksy's Avatar
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Smile 2003 expedition engine code po320

My expedition engine light is on and the code reader said po320.and the battery light flickers and now the truck will just stall out while driving.If any one has an idea thanks
 
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Old May 28, 2008 | 05:10 PM
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https://www.f150online.com/forums/sh...d.php?t=312874

This is a sticky thread in the ENGINES forum for future reference.

I am sure if you posted this question in the ENGINES forum quite a few people will help you out with that. Be sure to add year and engine specs in next time please.

I would say get the alternator checked.
 

Last edited by tech-doc; May 28, 2008 at 05:14 PM.
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Old May 28, 2008 | 05:18 PM
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Sorry and thaks
 
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Old May 28, 2008 | 06:23 PM
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1. Sounds like your alternator is shot.
2. Does it stall when you stop? If so, it could be your idle air control (IAC) valve.
 
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