2018 F150 Auto Start Stop

Car configuration discussions and experience sharing
imkennyg2
Posts: 1
Joined: Tue Jun 19, 2018 5:00 pm
Vehicle: 2018 F150 2.7

Re: 2018 F150 Auto Start Stop

Post by imkennyg2 » Sat Jun 23, 2018 9:28 pm

I found a really simple solution. On my 2018 there is a plug connected to the negative battery cable, just unplug it, the only thing it effects is the auto start/stop function.
Attachments
autostart-stop.jpg
autostart-stop.jpg (199.81 KiB) Viewed 1445 times

dfrazier1965
Posts: 2
Joined: Tue May 01, 2018 7:46 pm
Vehicle: F150,5.0,2018

Re: 2018 F150 Auto Start Stop

Post by dfrazier1965 » Sat Jul 14, 2018 4:03 am

imkennyg2 wrote:
Sat Jun 23, 2018 9:28 pm
I found a really simple solution. On my 2018 there is a plug connected to the negative battery cable, just unplug it, the only thing it effects is the auto start/stop function.
Can it really be this simple? No error codes? No other problems?

bottali80
Posts: 1
Joined: Wed Jul 25, 2018 12:23 am
Vehicle: f150, v8, 2018

Re: 2018 F150 Auto Start Stop

Post by bottali80 » Thu Jul 26, 2018 5:10 am

Yes wondering if it’s that easy myself.

slotkar
Posts: 2
Joined: Wed Aug 15, 2018 6:09 pm
Vehicle: Navigator, 3.5 L V6 Eco-Boost, 450hp, 2018
Location: West Bloomfield, MI
Contact:

Re: 2018 F150 Auto Start Stop

Post by slotkar » Thu Aug 16, 2018 6:34 pm

imkennyg2 wrote:
Sat Jun 23, 2018 9:28 pm
I found a really simple solution. On my 2018 there is a plug connected to the negative battery cable, just unplug it, the only thing it effects is the auto start/stop function.
I tried the solution suggested by mkennyg2 on our 2018 Navigator. The auto start/stop icon still appears in the cluster, the setting in the Advanced Settings > Vehicle > Auto Engine Off - Check box still won't stay unchecked when the ignition switch is cycled and the Auto Engine Off switch (on the console) remains unlit (not off). It looks like disconnecting the jumper does not work! :(

Me bad! I was in error... Disconnecting the jumper does work. However, there is no indication that the Start / Stop function has been disabled.
Last edited by slotkar on Wed Aug 22, 2018 8:42 pm, edited 1 time in total.

jdluke
Posts: 2
Joined: Fri Aug 17, 2018 10:06 pm
Vehicle: F150, gas 3.5,445, 2018

Re: 2018 F150 Auto Start Stop

Post by jdluke » Sat Aug 18, 2018 5:50 am

imkennyg2 wrote:
Sat Jun 23, 2018 9:28 pm
I found a really simple solution. On my 2018 there is a plug connected to the negative battery cable, just unplug it, the only thing it effects is the auto start/stop function.

I have done this exact thing. Just pull that plug like in the pic. Auto start/stop is disabled.
I was told about this plug from my dealer.
Edit: I have a 2018 F150 platinum

slotkar
Posts: 2
Joined: Wed Aug 15, 2018 6:09 pm
Vehicle: Navigator, 3.5 L V6 Eco-Boost, 450hp, 2018
Location: West Bloomfield, MI
Contact:

Re: 2018 F150 Auto Start Stop

Post by slotkar » Sat Aug 18, 2018 7:21 pm

jdluke wrote:
Sat Aug 18, 2018 5:50 am
I have done this exact thing. Just pull that plug like in the pic. Auto start/stop is disabled.
I was told about this plug from my dealer.
Edit: I have a 2018 F150 platinum
jdluke,
Is your F150 auto start/stop icon missing from the cluster when you disconnect the plug? And, does the Auto Engine Off switch remain unlit (not off)?

rdatkins
Posts: 5
Joined: Fri Sep 07, 2018 12:59 am
Vehicle: 18 F150 3.5 Twin Turbo

Re: 2018 F150 Auto Start Stop

Post by rdatkins » Fri Sep 07, 2018 2:01 am

Has anyone else tried this plug disconnect? I'm leary that it would affect something else?

thatevolution
Posts: 1
Joined: Wed Jan 10, 2018 6:02 am
Vehicle: F-150, 2.7 TT, 2015

Re: 2018 F150 Auto Start Stop

Post by thatevolution » Wed Sep 12, 2018 12:18 am

This plug goes to the battery current monitor (measuring flow from the negative terminal). If I recall right, the BCM uses this to assess overall battery health and performance. Disconnecting it inhibits the BCM from doing so. The logical assessment is... why should the vehicle auto start-stop if the vehicle's systems can't determine if the battery is healthy enough to do so? After all, its not just the 12+ DC volts that starts an engine... its the amps too...

deweyota
Posts: 1
Joined: Mon Aug 27, 2018 4:06 pm
Vehicle: 2018 ford f150 3.5l

Re: 2018 F150 Auto Start Stop

Post by deweyota » Wed Sep 12, 2018 7:02 pm

I have completed this on several F150s 2018 all trim levels including Raptor. Has anyone figured out how to keep the engine idling without shutting off while the vehicle is in park for longer than 30 min? Any help would be appreciated.

jdluke
Posts: 2
Joined: Fri Aug 17, 2018 10:06 pm
Vehicle: F150, gas 3.5,445, 2018

Re: 2018 F150 Auto Start Stop

Post by jdluke » Wed Sep 26, 2018 12:03 am

slotkar wrote:
Sat Aug 18, 2018 7:21 pm
jdluke wrote:
Sat Aug 18, 2018 5:50 am
I have done this exact thing. Just pull that plug like in the pic. Auto start/stop is disabled.
I was told about this plug from my dealer.
Edit: I have a 2018 F150 platinum
slotkar, Sorry I have been out of pocket for awhile.
But no, the Icon in the cluster menu is still visible and the light on switch above the radio remains off "unlit"
Since I removed the plug I haven't actually gone into that menu because... well, never need to. but I will go into it and see what any diff's there are.
I hope this is what you were asking
jdluke,
Is your F150 auto start/stop icon missing from the cluster when you disconnect the plug? And, does the Auto Engine Off switch remain unlit (not off)?

Post Reply