Join Date: May 2017
Location: Oshawa, ON
Thanked 11 Times in 11 Posts
Mentioned: 2 Post(s)
Quoted: 19 Post(s)
Feedback Score: 0 reviews
Not charging batteries after battery replacement
Hey everyone. I've had my 2014 F250 CCSB Lariat for a month now and I'm already fixing it ... Not too happy about it, but it is what it is.
I'm doing a big welding job far from home, staying in a local hotel. I drove to the hotel from the pub at night, no problems. Remote-started the truck from the hotel room, could see the lights come on, so I assumed the truck started normally, had my breakfast, and went outside to the truck not running. I tried to start it but the batteries were dead. Boosted the truck, but all the electronics (cluster, nav, etc) shut off when I disconnected the booster cables, with a message saying "Power off to save battery". So I figured, it being -25C (-13F), and the batteries being original, they're pooched.
I replaced both batteries with good new ones. Truck started no problem, but now I had a code and the battery light is on. P0625 - Generator field terminal circuit low. I have dual alternators. Cleared the code, but it came back immediately. Drove the truck 10 mins to site anyway cause I had no other option, everything was fine but the battery light stayed on. No more engine light - went away after sitting overnight.
I checked the Batts with a meter while running, they're 12.8V so obviously the truck isn't charging properly. I was an hour and a bit from home so I just decided to go for it, get as close to home as I could before I had to get it towed. I made it the whole way home, got in the driveway, shut the truck off, now it won't crank again. Batteries aren't dead dead, but it won't crank.
Not sure what to do now. Some guys are saying there's a wire that runs under the motor - I'm about to go check that. My assumption is my primary generator isn't working and the secondary one is just keeping the truck going while it's running, but not charging enough for the truck to start again once I shut it off.
Going to try to find this wire now, but I need the truck on Monday and it's going to be -35C (-31F) out here, so I need the thing to be reliable. Figured I would get a headstart looking for help before I run out of time.
As far as I can tell, there are no fuses for the generators, only a fusible link somewhere near the pass side battery. I've yet to look for it, but will in a moment.
Thanks for any help!
Sent from my Pixel 2 XL using Tapatalk