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No start after disconnected batteries

Tiny
CANI11
  • MEMBER
  • 2012 FORD F-350
  • 6.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
After disconnected batteries truck cranks but will not start. Checked fuses relays all good. No fuel coming from low pressure fuel pump, but plug has twelve volts pump is good because I jumped it and it goes on check battery grounds a code comes up p0627. Any help would be great I have been at this for a week.
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Wednesday, April 19th, 2017 AT 3:22 PM

2 Replies

Tiny
JOHNNY G.JR
  • MECHANIC
  • 320 POSTS
Possible anti theft mechanism engaged.
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Wednesday, April 19th, 2017 AT 7:03 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If it is anti theft see link on how to reset then truck may start. See picture for cause. it may be a bad relay or poor connection at relay which may be internal to smart junction box.
https://www.2carpros.com/articles/how-to-reset-a-security-system
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Thursday, April 20th, 2017 AT 6:13 AM

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