:
Start Stop
Laughing Gas
Joined: Jan 2013
Posts: 1,052
Likes: 57
Get one with the Ford Pass app, then you can program start times.
Laughing Gas
Joined: Jan 2013
Posts: 1,052
Likes: 57
Oh no, it does a lot more worthless stuff also.
You can start/stop the engine. Lock/unlock it.
Check the gas gauge and see where you left it.
You can start/stop the engine. Lock/unlock it.
Check the gas gauge and see where you left it.
Freshman User
Joined: Jan 2010
Posts: 25
Likes: 0
I just got my F150 and so far it hasnt been an issue. I dont believe that it could possible save any amount of fuel and IMO that would be negated by the cost of the extra wear on the starter. None the less it doesnt bother me.
My wife has a Subaru Hybird and it does the same thing. I will say that the Ford system is much smoother than the Ru. But, I dont think think the Ru uses a conventional starter. In that case I think that the Hybird motor starts the engine. I am not crawling under the Ru to confirm.
My wife has a Subaru Hybird and it does the same thing. I will say that the Ford system is much smoother than the Ru. But, I dont think think the Ru uses a conventional starter. In that case I think that the Hybird motor starts the engine. I am not crawling under the Ru to confirm.
Fleet Mechanic
Joined: Jul 2005
Posts: 1,463
Likes: 103
From: Staten Island, NY
Apparently the system monitors air conditioner use (keeps an eye on cabin temperature) and battery state as well. I tried leaving it enabled in NYC rush hour stop and go traffic. It did its thing for about 3 or 4 minutes during which time it shut down and restarted at least 25 times. Then it simply gave up and quit functioning. I'm guessing that the battery was beginning to run down since I never really used the gas pedal - just coasted forward a couple of feet each start cycle.
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Senior User
Joined: Jun 2004
Posts: 155
Likes: 4
From: Tennessee USA
Apparently the system monitors air conditioner use (keeps an eye on cabin temperature) and battery state as well. I tried leaving it enabled in NYC rush hour stop and go traffic. It did its thing for about 3 or 4 minutes during which time it shut down and restarted at least 25 times. Then it simply gave up and quit functioning. I'm guessing that the battery was beginning to run down since I never really used the gas pedal - just coasted forward a couple of feet each start cycle.
Cross-Country
Joined: Aug 2017
Posts: 86
Likes: 4
From: Loveland, CO
Go to you tube and search for "defeat auto start/stop f150" Without the quote marks.
Shows how to use a little jumper wire behind the switch. It is the same thing as pushing the switch.
DISCLAIMER: You are totally responsible for your actions if you decide to do this. I AM NOT responsible for your ability/inability to do electrical and or mechanical work. I am not responsible for your electrical/mechanical abilities.
Have fun.
Shows how to use a little jumper wire behind the switch. It is the same thing as pushing the switch.
DISCLAIMER: You are totally responsible for your actions if you decide to do this. I AM NOT responsible for your ability/inability to do electrical and or mechanical work. I am not responsible for your electrical/mechanical abilities.
Have fun.
Elder User
Joined: Aug 2005
Posts: 536
Likes: 5
From: Phoenix, AZ
As I stated in a previous post of this thread, I picked up my 2018 F150 yesterday afternoon. Outside temp was 103. Max cool was on all of the way home. I stopped at 14 traffic lights, the engine never shut off. 
Just an initial test report. I plan on monitoring it for awhile.
Just an initial test report. I plan on monitoring it for awhile.
Lead Driver
Joined: May 2015
Posts: 5,870
Likes: 356
From: Mts. S. of San Francisco
That should be normal. Max cool will disable start/stop.
Post Fiend
Joined: Jun 2014
Posts: 6,801
Likes: 7
From: DFW, TX-GoldCanyon, AZ
Hey all you Phoenix area guys ---
Roll those windows down and Max Cool for a while - I'll be down there in about a month and am hoping for mid 80's!!!!
I think I read elsewhere that Max Cool defeated the start-stop. Also, you need to be stopped for longer than 5 seconds I think. That should take care of most traffic bottle necks where you lift the brake pedal every few seconds to roll forward..
Roll those windows down and Max Cool for a while - I'll be down there in about a month and am hoping for mid 80's!!!!
I think I read elsewhere that Max Cool defeated the start-stop. Also, you need to be stopped for longer than 5 seconds I think. That should take care of most traffic bottle necks where you lift the brake pedal every few seconds to roll forward..
Fleet Mechanic
Joined: Jul 2005
Posts: 1,463
Likes: 103
From: Staten Island, NY
Here's the list from the service manual of when the start/stop system WON'T operate:
The Auto-start-stop system may not turn the engine off under these conditions:
The Auto-start-stop system may not turn the engine off under these conditions:
- the HVAC system is in A/C, heat or defrost modes.
- the rear defroster is on.
- the battery has a low state of charge.
- the battery temperature is below 5°C (41°F) or above 60°C (140°F).
- the engine temperature is below 46°C (115°F).
- the engine temperature is below 60°C (140°F) and the HVAC system is in heat mode.
- the gear selector is not in Drive or Sport Mode.
- the steering wheel is turned rapidly or is at a sharp angle.
- vehicle speed of greater than 4 km/h (2.5 mph) for more than 2 seconds has not occurred.
- the vehicle is on a steep road grade.
- elevation is approximately above 3,048 meters (10,000 feet).