Sponsored

Two-week honeymoon with Auto Start-Stop

Snakk Attakk

Big Bend
Well-Known Member
First Name
Larry
Joined
Aug 26, 2023
Threads
13
Messages
81
Reaction score
70
Location
Fort Mill, SC
Vehicle(s)
2023 Bronco
Your Bronco Model
Big Bend
I know this feature draws a lot of ire, but I have a new Bronco and will leave it stock for the time being. I've left auto start-stop enabled and have been commuting to work every day, mostly in stop-and-go suburban driving (yeah I know...). At first, I was surprised at the engine suddenly restarting when I was holding the brake down. I realized this was due to the AC being on. That said, I don't believe it is optimally tuned for that scenario. There should be a basic predictive algorithm for how long the engine can remain off without impacting cabin climate or battery charge. I don't think having the engine shut off and turn back on again in less than a minute represents a good tradeoff. Perhaps there are relevant regulations that tie the hands of the Ford engineers? Pure speculation.

The second issue is when you park, the engine stops, you shift into park, and the engine restarts. I've found several B6G threads on the subject, and this one is a head-scratcher for me. I've perused the manual and the documented conditions for ASS to restart the engine don't include shifting into park. And, I haven't heard a plausible use case of why you would want that. But the threads go back over a year, and it functions the same way to this day. Why??

I'm not inclined to install the ASS eliminator. ASS is annoying but not the end of the world on a daily commuter. I do hate when you are stopping behind a car and that car is juuuuuuuust getting ready to inch along again.

Back in the day I had a 6-speed manual transmission with the 2nd gear skip-shift feature. That HAD to go, holy crap. But this is not that.
Sponsored

 
Last edited:

Ducati1098

Wildtrak
Well-Known Member
Joined
Jul 14, 2020
Threads
10
Messages
3,418
Reaction score
6,629
Location
Midwest
Vehicle(s)
2022 Bronco Wildtrak, 2012 Ford Fusion
Your Bronco Model
Wildtrak
Clubs
 
The second issue is when you park, the engine stops, you shift into park, and the engine restarts. I've found several B6G threads on the subject, and this one is a head-scratcher for me. I've perused the manual and the documented gating criteria for ASS to stop the engine don't include shifting into park. And, I haven't heard a plausible use case of why you would want that. But the threads go back over a year, and it functions the same way to this day. Why??
The vehicle shuts off because it has no idea that you are parking instead of just stopping at a light. If you put it into park quick enough this doesn’t happen. You really don’t even need to do it super fast for it to continue running. But obviously if not, it assumes you are just stopping.
 

TX-Dennis

Wildtrak
Well-Known Member
First Name
Dennis
Joined
Mar 10, 2023
Threads
4
Messages
206
Reaction score
407
Location
Odessa
Vehicle(s)
Lincoln
Your Bronco Model
Wildtrak
I agree that it's odd. I was surprised that the engine restarted when I shifted into park at a drive through. It's unexpected and strange, but apparently normal behavior for the Bronco. Sort of miss the button I could push on my Lincoln that kept the brakes applied until you stepped in the gas pedal.

Not enough to get rid of the Bronco, though
 

KABQ

Base
Well-Known Member
First Name
Aaron
Joined
Aug 16, 2021
Threads
13
Messages
1,029
Reaction score
2,065
Location
Albuquerque, NM
Vehicle(s)
'93 4Runner, '84 Vanagon, '93 Miata, '14 LittleGuy
Your Bronco Model
Base
Clubs
 
You have to go through reverse to get to park, so it's probably restarting in case you want to back up. That's the only explanation I can think of
 

Sponsored
OP
OP
Snakk Attakk

Snakk Attakk

Big Bend
Well-Known Member
First Name
Larry
Joined
Aug 26, 2023
Threads
13
Messages
81
Reaction score
70
Location
Fort Mill, SC
Vehicle(s)
2023 Bronco
Your Bronco Model
Big Bend
Personally, I think it restarts in park so that you don’t walk away from a vehicle that’s still in the run position.
Winner winner chicken dinner?

Yeah, so you come to a stop in your garage, and ASS shuts the engine off. You shift into park and the engine stays off. You get distracted and leave the vehicle with it on, and there's no engine noise to remind you. You close the garage door and go inside. Then ASS restarts the engine and there's a carbon monoxide issue.

Plausible safety issue?
 
OP
OP
Snakk Attakk

Snakk Attakk

Big Bend
Well-Known Member
First Name
Larry
Joined
Aug 26, 2023
Threads
13
Messages
81
Reaction score
70
Location
Fort Mill, SC
Vehicle(s)
2023 Bronco
Your Bronco Model
Big Bend
You have to go through reverse to get to park, so it's probably restarting in case you want to back up. That's the only explanation I can think of
Plausible, I'll try ninja-shifting into park really quickly next time.
 

Ford Motor Company

First Edition
Well-Known Member
Official Ford Account
First Name
Ford
Joined
May 25, 2021
Threads
9
Messages
4,452
Reaction score
6,513
Location
Dearborn
Vehicle(s)
Bronco, Bronco Sport
Your Bronco Model
First Edition
I know this feature draws a lot of ire, but I have a new Bronco and will leave it stock for the time being. I've left auto start-stop enabled and have been commuting to work every day, mostly in stop-and-go suburban driving (yeah I know...). At first, I was surprised at the engine suddenly restarting when I was holding the brake down. I realized this was due to the AC being on. That said, I don't believe it is optimally tuned for that scenario. There should be a basic predictive algorithm for how long the engine can remain off without impacting cabin climate or battery charge. I don't think having the engine shut off and turn back on again in less than a minute represents a good tradeoff. Perhaps there are relevant regulations that tie the hands of the Ford engineers? Pure speculation.

The second issue is when you park, the engine stops, you shift into park, and the engine restarts. I've found several B6G threads on the subject, and this one is a head-scratcher for me. I've perused the manual and the documented conditions for ASS to restart the engine don't include shifting into park. And, I haven't heard a plausible use case of why you would want that. But the threads go back over a year, and it functions the same way to this day. Why??

I'm not inclined to install the ASS eliminator. ASS is annoying but not the end of the world on a daily commuter. I do hate when you are stopping behind a car and that car is juuuuuuuust getting ready to inch along again.

Back in the day I had a 6-speed manual transmission with the 2nd gear skip-shift feature. That HAD to go, holy crap. But this is not that.
Hi there, I'd be happy to look into your Bronco concerns on my end. Will you send us a message with your VIN and dealership info? I can look into things on my end.
 

ecasazza

Black Diamond
Well-Known Member
First Name
Everett
Joined
Mar 14, 2022
Threads
10
Messages
57
Reaction score
20
Location
NJ USA
Vehicle(s)
Pilot, Avalon, Corvette
Your Bronco Model
Black Diamond
I hate it. It is just propaganda, that it does not impact starter and battery life. Maybe if you live in the Midwest where there is no traffic and traffic lights. But here in New jersey and New York that's all we have. My friend had a new GMC pickup and he has gone through a starter in less than 2 years. Thank god not over 3 years.
 

Sponsored

KirchTX

Black Diamond
Well-Known Member
Joined
Oct 29, 2020
Threads
0
Messages
602
Reaction score
1,152
Location
Texas
Vehicle(s)
Nissan
Your Bronco Model
Black Diamond
Personally, I think it restarts in park so that you don’t walk away from a vehicle that’s still in the run position.

This makes a lot of sense actually
 

marktwain2001

Banned
Base
Banned
Banned
First Name
mark
Joined
Jul 23, 2023
Threads
4
Messages
30
Reaction score
57
Location
earth
Vehicle(s)
23 bronco
Your Bronco Model
Base
Epa has run amouk. The tunes are also now worthless.
 
OP
OP
Snakk Attakk

Snakk Attakk

Big Bend
Well-Known Member
First Name
Larry
Joined
Aug 26, 2023
Threads
13
Messages
81
Reaction score
70
Location
Fort Mill, SC
Vehicle(s)
2023 Bronco
Your Bronco Model
Big Bend
This makes a lot of sense actually
I'm struggling with how ugly of a solution this is, if that's what it is. Really ASS in park should work like drive, restart when the brake is lifted (in addition to the other conditions). As long as the brake is pressed, there is a driver in the seat. So, you'd turn off the engine and then release the brake, which you probably already do anyways.
 

da_jokker

Wildtrak
Well-Known Member
Joined
Jul 14, 2020
Threads
124
Messages
6,141
Reaction score
7,006
Location
California
Vehicle(s)
Jeep Wrangler JKUR
Your Bronco Model
Wildtrak
Clubs
 
I had every intention of leaving SS alone. My beef is how quickly it shuts off. I mean I could hardly stop at a light for a right turn into traffic without it killing the engine.

$50 part and a 5 minute install and have not missed it one bit. Sort of jealous they remove that feature during the chip shortage for some of their vehicles.
 

userdude

Badlands
Well-Known Member
First Name
Jared
Joined
Feb 20, 2023
Threads
20
Messages
2,250
Reaction score
3,465
Location
Denton, TX
Vehicle(s)
2023 2dr Badsquatch
Your Bronco Model
Badlands
Clubs
 
I remember back in the 80’s/90’s it was a serious discussion topic, “do you turn the engine off in a drive through?” To save gas. At least amongst my broke ass East Houston peeps. “No really, I want 43 cents in gas!”

Get the Ford ProCal tune and you can permanently disable it.
Sponsored

 
 


Top