7.3 wont start

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Jul 27, 2011 | 05:43 PM

bobbyt89

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7.3 wont start

i went down to napa to text my batteries today got there got the tester out unhooked both batteries tested both both tested 13 volts and 1100 and 1187 ccas. hooked everything back up and went tostart it and it wont start. turnsover fine but wont pop off nothing also noticed my wait to start light is not turrning on. help me

Jul 27, 2011 | 05:48 PM

427 fordman

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From: Plankinton, SD

Fuse 22 is more than likely blown under the hood in distribution box. New fuse and unplug the fuel bowl heater, that is what usually blows the fuse. I think its the middle plug on the drivers side of the bowl. Not sure why it would happen when testing batteries, could be just coincidence I guess.

Jul 27, 2011 | 05:49 PM

Action4478

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Check fuse 22 under the hood . If its blown , you will need to unplug the fuel heater ...

Jul 29, 2011 | 12:51 PM

bobbyt89

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still nothing all the fuses are good pulled 40 plus fuses it seams and all looked great. had it towed today and left the key on for the 2 mile drive got home checked the ecu and it was hot. any chance the ecu went bad and thats y the wait to start light wont come on?
i have a bullydog 6 position chip in it when i first put it in i would have to check the connection to the chip all the time when it wouldnt start and the wts light wouldnt come on but if i un pluged it the truck would start rite up i unpluged it and still no light and just cranks and cranks.

Jul 29, 2011 | 01:09 PM

Action4478

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If the chip came loose with the key on , it may have fried the PCM ..

Jul 29, 2011 | 05:05 PM

Higgy

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From: Crownsville, MD

sounds dumb but may be a loose/corroded battery lug. dealt with the same issue intermittently after replacing batteries over the winter. would have to pop hood and move one of the terminals slightly and it would fire right up. Ended up replacing both positive terminals and has been fine since.

Jul 29, 2011 | 10:14 PM

bobbyt89

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battries were both new in december and all the cable ends were replaced and soldered on?
trucks still not running still thinking its the pcm but the ford dealer here cant get it in until next friday to test. anyone else thinking its the pcm with me? found one in ny for 285 shipped but really dont want to buy one to find out mines fine anything i can test to help narrow it down?