Notices
2015 - 2020 F150 Discuss the 2015 - 2020 Ford F150
Sponsored by:
Sponsored by:

Multiple Failuer Issues

Thread Tools
 
Search this Thread
 
Old Sep 15, 2020 | 07:19 AM
  #16  
salukee's Avatar
salukee
Thread Starter
|
New User
Joined: Feb 2009
Posts: 19
Likes: 0
Originally Posted by Paul Spencer
Tough to say. If you tested that fairly soon after shutting it off, I would say 12.5 is not acceptable. If it is original, I would change it out no matter what (be sure to reset battery monitor if needed)
Let us know after an overnight charge
I left the battery on charge overnight. Voltage now at 12.75. Started truck after removing charger and all problems are still there.

Yesterday I removed cables and cleaned up post and connectors, all looked good before and after. Cables were off the battery for over 20 minutes.
 
Reply
Old Sep 15, 2020 | 08:31 AM
  #17  
johnday's Avatar
johnday
Cargo Master
15 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2010
Posts: 2,762
Likes: 536
From: barton city mi
Originally Posted by seville009
this may sound counter intuitive, but maybe actually disconnect your battery for a bit, then see what happens when you reconnect it. Maybe doing that will give the system a complete reboot.
Good call.

Originally Posted by salukee
Yesterday I removed cables and cleaned up post and connectors, all looked good before and after. Cables were off the battery for over 20 minutes.
So then, everything is good to go now? If so, what you did was called KAM reset, Keep Alive Memory. Bet your trans shifting was a bit goofy afterwards?
Humor me everyone. When weird crap goes on, a KAM reset sometimes works, the simplest, seeming unrelated issues magically clear up.
I was doing some lighting mods, got done and proud of myself, except I no longer had cruise control. I had worked on nothing that had anything to do with cruise. Out of desperation, I did the KAM reset, cruise came back. I have zero clue as to what caused me to temporarily lose it. Bloody computers, they do what ever they want I guess.
 
Reply
Old Sep 15, 2020 | 09:01 AM
  #18  
seventyseven250's Avatar
seventyseven250
Lead Driver
20 Year Member
Community Favorite
Joined: Jun 2005
Posts: 8,475
Likes: 728
From: Calgary Canada
I amend my previous advice to "just charge the battery" not to "Just remove the battery from teh truck and charge it overnight". I guess that will do a KAM reset as well as get the battery topped off with one action. Means you don't have to overthink things either. IO guess the ultimate would be to do that, then reconnect the battery and leave the truck for another 8 hours to make the BMS reset? haha so many "smart" systems in these trucks.
 
Reply
Old Sep 15, 2020 | 09:04 AM
  #19  
SilverSport's Avatar
SilverSport
Elder User
Joined: Feb 2006
Posts: 537
Likes: 1
From: Formerly Nawlins
So all is still not good. You had it parked for a bit, outdoors or indoors? Is it possibly an animal made a meal out of a grounding cable somewhere under the hood? I have never really looked over my 2016 to find the body and chassis grounds, but did have an issue on my 1990 with the braided ground cable between the engine and body needing replacement ... not as many electronics in my 1990 XLT Lariat, but it had power windows, AC, AM/FM Cassette, a 300CID and 5Sp Manual.
 
Reply
Old Sep 15, 2020 | 09:13 AM
  #20  
JKBrad's Avatar
JKBrad
Moderator
Veteran: Army
20 Year Member
Liked
Loved
Joined: May 2005
Posts: 8,231
Likes: 1,248
From: San Antonio, TX
Club FTE Gold Member
I’m still believe the battery needs to be replaced. When you get your new one, put it on a charger first for a few hours to make sure it’s fully charged.
 
Reply
Old Sep 15, 2020 | 10:05 AM
  #21  
Kingofwylietx's Avatar
Kingofwylietx
Fleet Mechanic
5 Year Member
Liked
Loved
Joined: Nov 2016
Posts: 1,634
Likes: 72
Originally Posted by JKBrad
I’m still believe the battery needs to be replaced. When you get your new one, put it on a charger first for a few hours to make sure it’s fully charged.
If you know where you'll buy your battery in advance, you can have them fully charge it prior to picking it up.
It'll save you the hassle, especially if you don't have a heavy duty charger.
 
Reply
Old Sep 15, 2020 | 10:28 AM
  #22  
seville009's Avatar
seville009
Logistics Pro
Joined: Nov 2004
Posts: 4,795
Likes: 47
Agree with the posts above.....it’s time to try a new battery.

Have nothing to lose - if it fixes your problem, great. If it doesn’t, you would have to stick in a new battery at some point anyway so you haven’t wasted any money.

Just better to definitely rule out the battery, a potentially simple fix, before you delve into the complicated stuff.

 
Reply
Old Sep 15, 2020 | 01:45 PM
  #23  
T diesel's Avatar
T diesel
Posting Guru
Joined: Nov 2011
Posts: 2,279
Likes: 12
AGM related.
I replaced my original battery with a superstart AGM size 65 from O’Reilly’s in December. In August I had a weak start incident and brought it in and had the battery and alternator tested. They both tested fine. A few days later I had another incident and asked to have it load tested and it failed! I highly suggest that you have it load tested if not replaced.
It will be my last AGM.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Sep 15, 2020 | 02:46 PM
  #24  
SpencerPJ's Avatar
SpencerPJ
Fleet Mechanic
5 Year Member
Community Favorite
Joined: Jan 2020
Posts: 1,369
Likes: 417
I'm not familiar enough with agm to make any recommendations. If it were me tho, I'd replace the battery and not with a Ford. Just too typical of battery symptoms. At minimum, I would have your current one load tested.
 
Reply
Old Sep 15, 2020 | 09:06 PM
  #25  
SilverSport's Avatar
SilverSport
Elder User
Joined: Feb 2006
Posts: 537
Likes: 1
From: Formerly Nawlins
4 Years for a battery .... I would be jumping through hoops. Hey ... mine makes 4 years this month by mfg date of truck. Lets see if it makes it through our 3 or 4 weeks of winter. I will be getting another Motorcraft one if I can.

My 2012 Regal Turbo is on it's 5th battery, first one replaced under vehicle warranty when it started oozing at about 3.2 years (the best one), that replacement lasted till right after the car warranty finished ... how did they time that. Next was Diehard that died after sears local service centers closed but still had a few months warranty, then came the already a year old when I bought it new Duracell from Sams, got 11 months but replaced free .... so it's replacement was 1 month from mfg, still going good but not a year yet, gotta love 3 year free replacement warranties. It takes AGM batteries and that car doesn't get driven as much anymore as truck no primary, so could be reason on last 2 batteries.
 
Reply
Old Sep 16, 2020 | 12:35 PM
  #26  
Lime1GT's Avatar
Lime1GT
Fleet Mechanic
Joined: Jul 2010
Posts: 1,354
Likes: 31
From: Winnipeg
I would check for a power loss to the passenger compartment fuse panel. Seems like your symptoms are controlled there. https://www.startmycar.com/ford/f-150/info/fusebox/2016
I would also check the power distribution box high amp fuses, like #12 and #13. I have no wiring diagram so I can't tell you where the main power feed for the pass. fuse panel comes from.
 
Reply
Old Sep 18, 2020 | 08:29 PM
  #27  
grm61's Avatar
grm61
Senior User
Joined: Nov 2008
Posts: 411
Likes: 5
From: Cle Elum WA
Another vote for replace the battery and go from there....
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
F350SD
1999 - 2016 Super Duty
2
May 27, 2014 03:46 PM
ibyourhucklebery
Excursion - King of SUVs
13
Oct 15, 2007 11:25 PM
rjstat
1997 - 2006 Expedition & Navigator
14
Nov 14, 2006 02:42 PM
Mezmo
2004 - 2008 F150
6
Aug 3, 2004 09:37 AM




All times are GMT -5. The time now is 03:35 AM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE