F250 won't start, no display functions all else works fine

[fmbeagle]

HELP!!! I have a 2003 F250 PS 7.3 and it will not start. When I turn the key on to pre heat the glow plugs, I have no dash functions, usually, the glow plug light comes on, the fuel guage moves and the digital odometer is displayed and etc. but now there is nothing. all else works. ie lights, radio, windows etc. It cranks good but will not start. I have checked all the fuses and relayes, they all seem good. I do have a super chip programmer, I ran the diagnostic function and nothing comes back. I tried to return the programming to the stock position but the Super Chips programmer tells me that it "can not communicate with the computer". Some body please help. thanks for the wonderful knowledge base. Thanks, Freddy Hening, Crawfordville, FL.

[RedneckGirl]

Which setting was your programmer last set on???

[460+]

You might check all fuses make sure you dont have one blown. Id unhook both batteries
maybe it might reset and get power back?

[fmbeagle]

thanks for the response, I tried all the fuses and removed the batteries, the last setting was the TOW PERFORMANCE, Do you think Will low voltage in one battery may cause this?

[460+]

Its possible, but im not sure. Mine did similar no wait to start light found a relay bad so I switched with another and it worked.I dont remember wich one but it was under the hood.

[RedneckGirl]

From what I have read the Superchips high performance setting draws more off of the batteries for starts. If it'll crank but not start and what I've read is true, you may not be getting enough juice to start.

Do you know anyone else who can try and scan for codes or communication with a different programmer?

Do you have the instruction booklet that came with the programmer? According to some other resources the last page will cover what to do if the truck will not start.

[fmbeagle]

Originally Posted by 460+

You might check all fuses make sure you dont have one blown. Id unhook both batteries
maybe it might reset and get power back?

where are the relays under the hood, i searched for a fuse panel under the hood and couldn't find one, the only one i can find is under the dash, I have seen the under the hood fuse panel on other year trucks, but does the 03 have one?

[fmbeagle]

I have the book somewhere, but where is another story, can I get a PDF of it from the super chip site? my next step is to check the voltage of each battery. thanks for the responses , I have to go, kids are crying, please post what you can come up with, I will check back shortly, BYW, both of you have very nice trucks, Thanks, Freddy Hening

[bryanbrown]

I don't know, but I'll keep it bumped up for ya

[condon66]

I am having the EXACT problem. My truck is sitting at a fuel station right now with the same exact symptoms. I hope we both get the help we need!