Hello,
So I changed my injector o-rings yesterday and now my truck won't start after sitting over night... She started very hard after the motor was put back together and I hand cranked her to get all the oil or air out whichever. Yesterday when she finally started she smoked like no other and then while driving for about 10 miles she blew white smoke. Then she started to blow black
Well then after letting her sit unplugged for 5 hours yesterday she started up like a dream but then she wouldn't start this morning
My batteries were almost dead and she just wouldn't turn over. Any help would be appreciated
Think I have done to truck
GPR
Glo plugs
Intake heater relay
New block heater

 

Provided a response in your thread in the Super Duty section, below is a link to it.

https://www.ford-trucks.com/forums/1...ont-start.html

 

When I did my orings. I had same smoke. Man did she blow ! All the oil went into the pistons and when you turn it over by hand it pumps all the oil into the exhaust. Takes a while for it to burn it all out

I would start out getting batteries tested. Sounds like your struggling with them . Anything less than 10v (while cranking) she won't start. One bad battery will do that. .

It takes a bunch of miles to burn off all the oil in the exhaust and get all the air out of the fuel system . Do you have a way to test cranking voltage ?