Hey guys sorry I don't reach out online much unless I am at the end of my road nor do I want to beat a dead horse. Heres the issue the obvious truck cranks to what seems as normal speed to me, fires for a second then dies. Have to do this two or three times until she fires and runs way rough on her own until warm. Then she's fine for the rest of the day. I do have a block heater which I plug in at home and have no issues with her firering up. It's when I'm at work with no plug in. Recently bought her used with a 138,000 from a ford dealership. They say they changed the oil and all filters including fuel. Put two new batteries in and a laundry list of other things. When I bought her it was August hot outside. She started and ran great. Now it's December and she Hates to fire and run. Here's a list of things I have done since the issue started.
Changed oil over to Rotella T6 with Archoil added
Changed glow plugs (Bench tested the new ones)
Changed GP harness then Ohm'd everything out harness and plugs
Checked voltage coming from the GPCM getting 12.8 W/O engine running
Checked FICM 48.2v in acc 48.2v running
Load tested both batteries they show and hold 12.9v under load
Don't own a pro scanner yet just have Bluedriver ODBII but it shows no hard or soft codes.
I'm sure I'm over looking something as this is my first time owning a powerstroke but any help is help at this point. Thanks much!
Side note about a month ago before it got cold outside my kid accidentally left the key in acc over night and drained the batteries. I threw the charger on long enough to get her to fire. Don't know if that could have done anything.
Changed oil over to Rotella T6 with Archoil added
Changed glow plugs (Bench tested the new ones)
Changed GP harness then Ohm'd everything out harness and plugs
Checked voltage coming from the GPCM getting 12.8 W/O engine running
Checked FICM 48.2v in acc 48.2v running
Load tested both batteries they show and hold 12.9v under load
Don't own a pro scanner yet just have Bluedriver ODBII but it shows no hard or soft codes.
I'm sure I'm over looking something as this is my first time owning a powerstroke but any help is help at this point. Thanks much!
Side note about a month ago before it got cold outside my kid accidentally left the key in acc over night and drained the batteries. I threw the charger on long enough to get her to fire. Don't know if that could have done anything.