Why do we hate Auto Start/Stop so much?

[Larry Christopher]

I guess you have never needed to turn left in an intersection while waiting for a gap in opposing traffic? Sometimes you need that power on demand and not have to wait for the engine to restart. It also turns my Bronco off as I come to a stop for parking, then turns on so I can shift into park, then I get to shut it down again with the push of a button. Seeing that I tend to come to a full stop and park at the end of every vehicle voyage, it means I would get the privilege of that frustration at least once every drive.
Honestly, I just like having more control of the vehicle. I turned mine off the moment FORSCAN supported it.

I didn’t know FORScan supported it . I’ve got a 2022 Black Diamond with the 2.7 and auto trans . Will FORScan cover that year ?

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[Poppavein]

Are yall having to hit the button every time you start your Bronco?

I usually run in Sport mode which disables ASS.
And, yes, that is another annoying “feature” that the Bronco doesn’t automatically stay in the same mode since it was stopped. So, I have to hit the OK button every time.

 

[Dlrsavannah]

I usually run in Sport mode which disables ASS.
And, yes, that is another annoying “feature” that the Bronco doesn’t automatically stay in the same mode since it was stopped. So, I have to hit the OK button every time.

Well then that's why I don't hardly ever have to touch it, I'm in sport mode all the time as well.

 

[Tricky Mike]

Mark me down for not being part of "we". I don't mind it at all, but then again every drivability complaint here is negated by the manual.

 

[Zstngz]

Main theories discussed in first couple of pages.


I see you have Base listed ... Manual or auto?
There is a world of difference between the two.

I had an auto for 9 months (still have he manual) .... the amount of A/S/S events on the auto was insane and VERY intrusive to the driving experience....to the point of being a safety concern, as noted in my earlier posts.

I've driven other vehicles with A/S/S and they were better managed, shutting off when it was logical and/or sensible.

Ford's A/S/S is hyperactive, lol!

Auto. I have started switching it off now anyhow.

 

[Lej512]

I don't like it but not to the extent that I've invested/installed the aftermarket override module. I've gotten used to clicking my seat belt, pushing the start button and then pushing the override button. I'm retired. I've got that kind of time.

 

[BroncocnorB]

I didn’t read all 7 pages: but I just push the button. Problem solved? My dad wanted me to b an astronaut he always told me I was good at taking up space.

 

[HoosierDaddy]

I don't like it but not to the extent that I've invested/installed the aftermarket override module. I've gotten used to clicking my seat belt, pushing the start button and then pushing the override button. I'm retired. I've got that kind of time.

In 9 months, i never got to the point of remembering to kill the a/s/s at start up.
it always got me at least the one time.
Lol!

If I had kept the auto, 100% I would have installed the eliminator.

 

[Summit981]

On the “Pain Scale of Life”, the Auto Stop/Start in my Bronco doesn’t even register.

 

[CarmeloS]

I’m just here to bump this back to the top of new posts

 

[DefNotBuddyLee]

I didn’t know FORScan supported it . I’ve got a 2022 Black Diamond with the 2.7 and auto trans . Will FORScan cover that year ?

It did for 21 models. I knew there were some things missing when 22 models came out, but assumed it had been fixed by now. I found this but honestly have not tested on a 22...
You have to change the values in the "AS Built" in the PSCM module address 730-03-01. There are 3 sets of values. In the 3rd set of values change the first two digits from 01 (enabled) to 00 (disabled). Then click write all and follow the key off/on instructions. That's it."
Hope it works for you. For me it was right up there with disabling the double honk when you get out while engine is running.

 

[Scott R Nelson]

I have not read the seven pages of stuff in this thread, and don't expect to, but I'll toss in my opinion anyway.

I like the auto start/stop feature. I have had rental cars with it that were terrible, but the Bronco does it right - for the most part. The only issue I run into is that sometimes it won't shut the engine off when I'm stopped at a light and I can't figure out why. I know that it doesn't want to work when the engine is cold, especially in cold weather, and that sometimes it doesn't want to work when the air conditioning is on.

Yesterday I filled it up then had to drive ten miles across town with at least one stop light every mile. Taking it easy on the gas and letting it shut off at every light gave me a fuel economy reading of over 25 mpg. I'm pretty sure that if it never shut off I wouldn't have even seen 20.

If for no other reason, if you care about conserving fuel, the auto start/stop is a good feature.

 

[Gloff]

Nobody has brought this up, so I guess I will. Would be happy if someone with more technical knowledge could expand on what I read, as follows:

- while researching my wife‘s new “mild hybrid” Mercedes which utilizes a direct drive electric motor that somehow eliminates things like starters and timing chains, I saw an article that discussed the impact of “traditional” ASS on relatively “traditional” engines like the ones in our Broncos
- the author indicated that engines like ours would experience far more wear on exactly those two parts - timing chains/belts and starters - as a result of ASS and that manufacturers like Ford know it but equipped ASS anyway because of CAFE
- the gist, of course, was that the “mild hybrid” design would not suffer such adverse wear because the electric motor eliminated both the “traditional” timing chain and starter

I’m not really certain how true this article was but after reading it, I started making a point of disabling ASS whenever I’m driving my Bronco.

Most of the modern hybrids either use a pancake motor inbetween the engine/trans, or the full boogie eCVT with two or more Motor Generators eliminating the need for alternators and starters in most applications. Your Mercedes should still have some sort of timing mechanism for the gasoline engine (either chain or belt). There are no commercially available camless engines that I'm aware of today.

 

[CarmeloS]

I have not read the seven pages of stuff in this thread, and don't expect to, but I'll toss in my opinion anyway.

I like the auto start/stop feature. I have had rental cars with it that were terrible, but the Bronco does it right - for the most part. The only issue I run into is that sometimes it won't shut the engine off when I'm stopped at a light and I can't figure out why. I know that it doesn't want to work when the engine is cold, especially in cold weather, and that sometimes it doesn't want to work when the air conditioning is on.

Yesterday I filled it up then had to drive ten miles across town with at least one stop light every mile. Taking it easy on the gas and letting it shut off at every light gave me a fuel economy reading of over 25 mpg. I'm pretty sure that if it never shut off I wouldn't have even seen 20.

If for no other reason, if you care about conserving fuel, the auto start/stop is a good feature.

 

[Lcubed]

It may have been said else where but it is recommended on turbo boosted engines to idle before shutting off to ensure all components stay lubricated.

stolen from a many years old f150forum.com post:


While this was true of turbo's of the past, it is not true for the EB. The EB uses liquid/oil cooled turbos that do not require a turbo timer or idle for 30 seconds to get the turbo's cooled down. If you want more information on this subject the try this Garrett website on liquid cooled turbos.

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it's not that hard to imagine the same oil that circulates for the turbo's after engine shutdown might be also be used in a similar fashion during ASS

it's not like FORD hasn't seen this solution in the past ...

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