error message
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Hotshot
Joined: Jul 2013
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error message
just throwing this out for comment.
had a "service battery soon" message today and a little battery red light.
drove for about 30 minutes. turned the truck off. did some shopping. turned the truck back on. light was cleared and no more error message.
im assuming the batteries were cold.
the battery window indicator was green...usally indicating they dont need water.
had a "service battery soon" message today and a little battery red light.
drove for about 30 minutes. turned the truck off. did some shopping. turned the truck back on. light was cleared and no more error message.
im assuming the batteries were cold.
the battery window indicator was green...usally indicating they dont need water.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
The service battery soon message is triggered by the BMS and is a rare message. The BMS will trigger this if it tries to up the field voltage but chassis voltage will not climb as it thinks it should. My guess is you are looking at a battery failure in the near future.
Lead Driver
Joined: Jul 2011
Posts: 6,135
Likes: 366
From: Burlington, ma
I'm assuming you have the 2 batteries where you have the Diesel.
When was the last time you bought batteries and maybe there was something drawing on them you didn't realize?
I didn't have an issue in my '06 Diesel until I needed to get new batteries, 3 years in I think
When was the last time you bought batteries and maybe there was something drawing on them you didn't realize?
I didn't have an issue in my '06 Diesel until I needed to get new batteries, 3 years in I think
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Hotshot
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Checked voltage and initially got 13.79
inspected acid level and it was fine
checked terminals and pax side positive has some corrosion on it.
cleaned up all terminals
checked charging voltage again and got 13.97
edit 14.1 after 10 minutes
battery light is still on
pulling batteries and will test on the bench.
either way, looks like this is headed to Ford service.
inspected acid level and it was fine
checked terminals and pax side positive has some corrosion on it.
cleaned up all terminals
checked charging voltage again and got 13.97
edit 14.1 after 10 minutes
battery light is still on
pulling batteries and will test on the bench.
either way, looks like this is headed to Ford service.
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Lead Driver
Joined: Jul 2011
Posts: 6,135
Likes: 366
From: Burlington, ma
Were both batteries at that amount? I know if 1 is low you can't start the truck, at least on mine it was that way... but that may have been when it was a bit cold out.
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Hotshot
Joined: Jul 2013
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Update
pulled both batteries and charged them on my bench .
with nothing connected I let them sit for 40 minutes
pax side battery (the one that had corrosion on the terminals) dropped to 10.2 volts
so I guess the pax side was not charging and I have been running off the drivers side battery for a while.
im going to replace both.
im going to keep the old batteries and recondition them (de sulfate) then add them to my solar farm.
since I had 14.1 volts in the vehicle before I pulled them, new batteries should do it since the problem was just 1 battery.
Will update after new batteries and some road time.
pulled both batteries and charged them on my bench .
with nothing connected I let them sit for 40 minutes
pax side battery (the one that had corrosion on the terminals) dropped to 10.2 volts
so I guess the pax side was not charging and I have been running off the drivers side battery for a while.
im going to replace both.
im going to keep the old batteries and recondition them (de sulfate) then add them to my solar farm.
since I had 14.1 volts in the vehicle before I pulled them, new batteries should do it since the problem was just 1 battery.
Will update after new batteries and some road time.
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
Charge the batteries up separately, load test them separately, then check specific gravity of each cell. My bet you have a failing battery with one bad cell. Then try and get Ford to come good on what you find. When they test, tout they don’t do this charge up first, they just load test and replace only the battery that fails. They do have Motorcraft MAX AGM batteries but they are in short supply. Or you can just go Odyssey group 65 for a cool 600 USD for a pair. Up here in Canada I can get them, without warranty, and 2 would cost me 900 plus CDN.
My original batteries lasted less than 60,000 km, 3 years, stood me up on the side of the road, had to buy two new AC Delco batteries at a Lordco. One battery down on voltage, low voltage warnings and battery light when I tried to start, not before I shut it off, no start.
My original batteries lasted less than 60,000 km, 3 years, stood me up on the side of the road, had to buy two new AC Delco batteries at a Lordco. One battery down on voltage, low voltage warnings and battery light when I tried to start, not before I shut it off, no start.
Lead Driver
Joined: Jul 2011
Posts: 6,135
Likes: 366
From: Burlington, ma
See, some things don't change with newer models. They should have a meter on them in the truck to help with that maybe
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Hotshot
Joined: Jul 2013
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Update
replaced both batteries with new ones and have “service charging system” message.
called local dealership and was given a 6 July appt. today is 22 feb.
wow, that many Ford owners with electrical problems.
called a dealership 2 states away and got a 3 mar appt.
may have to do a hotel or a rental .
nothing like Ford having your back.
2019 f-450 with 7500 miles. And yes, I have an extended warranty.
replaced both batteries with new ones and have “service charging system” message.
called local dealership and was given a 6 July appt. today is 22 feb.
wow, that many Ford owners with electrical problems.
called a dealership 2 states away and got a 3 mar appt.
may have to do a hotel or a rental .
nothing like Ford having your back.
2019 f-450 with 7500 miles. And yes, I have an extended warranty.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Update
replaced both batteries with new ones and have “service charging system” message.
called local dealership and was given a 6 July appt. today is 22 feb.
wow, that many Ford owners with electrical problems.
called a dealership 2 states away and got a 3 mar appt.
may have to do a hotel or a rental .
nothing like Ford having your back.
2019 f-450 with 7500 miles. And yes, I have an extended warranty.
replaced both batteries with new ones and have “service charging system” message.
called local dealership and was given a 6 July appt. today is 22 feb.
wow, that many Ford owners with electrical problems.
called a dealership 2 states away and got a 3 mar appt.
may have to do a hotel or a rental .
nothing like Ford having your back.
2019 f-450 with 7500 miles. And yes, I have an extended warranty.
Thread Starter
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Hotshot
Joined: Jul 2013
Posts: 14,237
Likes: 2,177
I have forscan on my iphone
gavent played with it in a while...but will try it.