Sponsored

Auto start stop not working

Spiffy

Well-known member
First Name
Jeff
Joined
Jan 9, 2023
Threads
50
Messages
509
Reaction score
248
Location
Usa
Vehicles
2022 platinum powerboost
Occupation
Retired
With a update yesterday to sync 1049 my truck engine is not going in start stop mode. It's running all the time. At parked idle it's still running.
Sponsored

 

HammaMan

Well-known member
Joined
Sep 7, 2022
Threads
75
Messages
4,580
Reaction score
4,704
Location
SE US
Vehicles
2022 302a PB, Mach E GTPE
Battery charged up?
 

ArcaneAquaman

New member
First Name
Corey
Joined
Jan 16, 2024
Threads
0
Messages
1
Reaction score
1
Location
Mississippi
Vehicles
2021 F150 Lariat 5.0
Occupation
Software Engineer
You should be able to see why it isn’t stopping in the menus. I think it’s under Trip/Fuel -> Auto Stop/Start. Mine has shown low temp and vehicle charging before.
 

Mr Salami

Member
First Name
Bobby
Joined
Jan 4, 2024
Threads
0
Messages
7
Reaction score
4
Location
Tampa, FL
Vehicles
2022 F-150 Platinum
It's a battery issue. That happened on my 2017.
 

jhelrey

Well-known member
Joined
Sep 18, 2023
Threads
13
Messages
246
Reaction score
141
Location
MN
Vehicles
2021 F150 CC Platinum FX4 5.0 4X4 3.73 LB
I had a new one recently... Just got fuel. Came to a long stop light. Truck wouldn't turn off. The reason why, learning fuel type. FFS.
 

Sponsored

imnuts

Well-known member
First Name
Mark
Joined
Mar 1, 2021
Threads
23
Messages
1,501
Reaction score
1,568
Location
Dirty Jerz
Vehicles
'21 502A Powerboost 4×4
Occupation
Facilities Engineer
If you received a PCM update, it is normal until the engine reaches temp and stays there for a short time. A 10-20 minute drive should get it back to cycling normally again.
 

Pops

Member
First Name
Charlie
Joined
Nov 21, 2023
Threads
0
Messages
12
Reaction score
8
Location
Tennessee
Vehicles
2023 F150 XLT 5.0
My truck has 5000 miles on it, auto start stop quit working for 2 weeks roughly and started seeing some bugs in the truck. Warranty battery replacement fixed it. mine is a 5.0 but I've read all the threads on the bugs with a low battery so the dealer looked at me like an idiot when I told them I had a bad battery. Put a meter on it if you have one before you start it for the day. Mine was holding at about 11.95volts. No bugs since battery changed.
 
Last edited:

Trailrated

Member
Joined
Feb 11, 2024
Threads
2
Messages
23
Reaction score
40
Location
East Coast
Vehicles
23' F-150
Seems the auto start n stop is wonky on my brand new 23' 5.0. I don't care for it anyway, but sometimes I forget to turn it off and when I realized it, it wasn't working anyhow during my travels. Then sometimes when I stop, it works. I'm like WTF, not consistent at all.
Sponsored

 
 




Top