400/800 flash from ford - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 12-30-2010, 07:13 PM Thread Starter
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400/800 flash from ford

How do you tell if your truck has the flash or hasn't? Does it go by bulid date or?

2008 F250 CC LB Lariat
20's With 34s on them
recon mirror and cab lights
spartan 250
5 inch mbrp
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post #2 of 3 Old 12-31-2010, 03:36 AM
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Its goes by build date. Anything before September needs the flash. I asked the dealer this when I picked up mine.
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post #3 of 3 Old 01-07-2011, 05:18 AM
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Yea but how do you verify that it has it? Can you check the computer on the indash screen?
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