SIAP, question about auto stop/ start...

[Neverowneda4x4]

How is it that the autostop/ start "feature" doesn't kill the battery or lessen the life of the starter or alternator on the bronco?

Sorry, I tried searching this topic and the results are all to do with disabling it with for scan. Thanks.

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[Ducati1098]

How is it that the autostop/ start "feature" doesn't kill the battery or lessen the life of the starter or alternator on the bronco?

Sorry, I tried searching this topic and the results are all to do with disabling it with for scan. Thanks.

Because the starting and charging system is built around the feature to account for the additional starting and stopping.

 

[Vanimalious]

Yeah, they made it extra durable. If that's the case, disabling AS/S should make the starter and alternator last longer, I would think.

 

[Neverowneda4x4]

Because the starting and charging system is built around the feature to account for the additional starting and stopping.

There is a portion of my commute where I'm inching forward for about 5 minutes to get on a 2 lane highway and it shuts off and restarts about every 5-10 seconds. I'm surprised that this amount of restarting is actually being accounted for by the system.

 

[Ducati1098]

There is a portion of my commute where I'm inching forward for about 5 minutes to get on a 2 lane highway and it shuts off and restarts about every 5-10 seconds. I'm surprised that this amount of restarting is actually being accounted for by the system.

Yep that’s pretty normal. Auto start stop has been around for a while now with no noticeable impact on parts at all it seems.

 

[MNBigfoot]

No worries, the starters engineered to last the life of the warranty..... The battery on the other hand is a wear item.

 

[BBSas]

I disabled with Forscan. It is a most annoying component on modern era cars. Does it really have a benefit or just another big brother feel good?

 

[Leilani]

How is it that the autostop/ start "feature" doesn't kill the battery or lessen the life of the starter or alternator on the bronco?


As I understand it, per my colleague who is an Engineering Professor at UC, electric motors don't have the same oiling system as internal combustion engines and they can start and stop without affecting the lifespan of the motor. Conversely, the most damaging time for internal combustion engines is within the first few seconds when the engine manually or auto starts. This is because internal combustion engines use oil to lubricate the bore of the engine on which the pistons move up and down. When the engine shuts down/auto-stops, the oil pressure drops to zero. As such, within the fist few seconds of every auto-start, the metal rings on the piston slides along the bores of the engine without lubrication.

In regular cars (without auto stop) the start/stop process is approximately 100,000 within roughly 20 years of the vehicle. However in vehicles with the auto-stop system, it is estimated the engine starts more than one million times /20 years thus degrading the engine exponentially more until eventually the engine cannot produce the moment needed for driving.


For these reasons, I disable this feature every time I drive. I would be GRATEFUL to learn how to override this feature using Forscan if anyone can kindly share these instructions?!

 

[Leilani]

I disabled with Forscan. It is a most annoying component on modern era cars. Does it really have a benefit or just another big brother feel good?

I would be most grateful if you could please share these instructions as I have not yet found where/how to do this in the bronco driver's manual?!?!

 

[yourbudjim]

I would be most grateful if you could please share these instructions as I have not yet found where/how to do this in the bronco driver's manual?!?!

I used this because there are some potential downsides to disabling via Forscan:

Autostop Eliminator for Disabling Automatic Start-Stop - 2021+ Bronco – StickerFab

 

[Latchquatch]

I used this because there are some potential downsides to disabling via Forscan:

Autostop Eliminator for Disabling Automatic Start-Stop - 2021+ Bronco – StickerFab

I've used this on several Ford products including my Bronco. Works flawlessly and easy install!!

 

[HoosierDaddy]

As I understand it, per my colleague who is an Engineering Professor at UC, electric motors don't have the same oiling system as internal combustion engines and they can start and stop without affecting the lifespan of the motor. Conversely, the most damaging time for internal combustion engines is within the first few seconds when the engine manually or auto starts. This is because internal combustion engines use oil to lubricate the bore of the engine on which the pistons move up and down. When the engine shuts down/auto-stops, the oil pressure drops to zero. As such, within the fist few seconds of every auto-start, the metal rings on the piston slides along the bores of the engine without lubrication.

In regular cars (without auto stop) the start/stop process is approximately 100,000 within roughly 20 years of the vehicle. However in vehicles with the auto-stop system, it is estimated the engine starts more than one million times /20 years thus degrading the engine exponentially more until eventually the engine cannot produce the moment needed for driving.


For these reasons, I disable this feature every time I drive. I would be GRATEFUL to learn how to override this feature using Forscan if anyone can kindly share these instructions?!

I'm curious if the wear concerns on the bearings would be worse/same/less than the cylinder bore in this situation.
I'd always thought running the bearings dry, even for a moment, has far greater cause for concern than the rings.

 

[Gnomad]

given all of the variables concerning fuel usage, some like fuel quality and energy content being outside the users control, I can't imagine the fuel saved over time to be any more than a rounding error.
OTOH, if disabling the A.S.S. saves the starter even a start a day, that should double the life and that's a number you can see-$278 plus install. If indeed the starter is designed to last the normal life of the motor then by disabling the system you should never have to replace it in the forseeable future. I'm happier with that.

 

[gtabert]

Since I've removed the doors and top on my two door MT, auto stop start is disabled. The indicator on the dash shows the featured (a) with with the / running through it indicating it is disabled. I do not press the button manually to disable it at any time. Does anyone know why this is set up like this? I cannot think of any reason Ford designed it that way. Reinstalling the doors and top, the feature is again functional.

 

[Scott R Nelson]

There are settings on the display where you can watch the battery voltage. Mine will show somewhere around 13.5 volts when it first shuts the engine off. I'll watch that number slowly drop, and if I'm stuck at a long light, when it gets down around 12.8 to 12.6 it will restart the engine.

The system is designed to work with the auto start/stop feature, but it won't let the battery voltage drop too much to restart the engine again.

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