I have a 1999 f250 7.3 diesel truck was running good I parked it the next day I came out wait to start was not coming on sound like could be a cold start so I plugged utit in for a few hours went back out still no wait to start and it said service engine soon I got all new fuses glow plug relay checked everything I could possibly check please help me out it is my first diesel have a lot of money invested every time I take it to a shop they charge me so much money and I can't get back to work until my truck is fixed I work in another state

 

does it start or have you not tried?
post this in the 7.3 section also.

 

It does not its been sitting for 2 months now

 

ok, have you checked for codes?
have batteries tested individually.
will it turn over and just not crank or does it not turn over at all?

 

I Plugthe code reader and it won't even turn on tried numerous code readers it'll just keep cranking cranking no start

 

you can pull codes without the truck running. (KOEO)
if your not getting power to the OBDII port, check the fuse for it.
it is normally tied in with the same fuse as the cigar/cigarette lighter.