Whats is your opinion the jeeps engine stop start system?

[JonMN]

In contrast, my last car was a manual and had a skip-shift "feature." If I was not driving aggressively enough, it would automatically shift from 1st to 4th. Now THAT is a pain that required electrical intervention to disable . . .

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[Mister Lamb]

It's an awful system, especially the parasitic puny AUX battery. At a minimum, if I disable the Start/Stop the truck should remember my choice on startup

 

[ShadowsPapa]

I date myself...When the engine stops I think it failed.
Has to be hard on systems...how many starters will it eat?
How many low oil pressure restarts will the engine endure?
ShadowsPapa, I am allowed to like and dislike things as MY choice, based on my knowledge and ignorance, thank you.

Believe what you wish. Free country.
I have no problem with disliking something.

I recall the first hybrid I drove - it was an official State of Iowa car and I was going to a remote office to work on their network. I got in - drove a block, got to the first stop sign and "WTF??". Let up on the brake and hit the accelerator - hmmm, oh, so THIS is a hybrid! That was probably 15 - 20 years ago now. Totally used to it after driving the state's Prius and Honda hybrids and owning a 4xe.
I sure understand the idea that something is amiss when it stops, takes some getting used to for sure.

 

[Lost1wing]

Well I guess I was wrong after all because I claimed only 4 people on this forum liked their ESS. It's a little higher than that.

A couple people here are cult-ish about ESS and that is totally fine with me. However, I do not like or appreciate these people projecting beliefs others have espoused, in past arguments, to my own beliefs or opinions.

I got rid of my auxiliary battery because I don't use it and have a tazer. Now I only have to worry about 1 battery that is easy to access. To make blanket statements that people like me are stupid and will believe anything they read on the internet is lazy and arrogant. Practice a little humility.

I wouldn't consider anyone to be an idiot just because they followed the recommendation from a youtube video and did some research on their own. But when you watch one video and base everything you do on that one video, you're asking for trouble. Be informed and know what you are doing. There is no telling how many fuse arrays were blown or how many good batteries have been replaced just because someone on youtube said delete the Aux without giving full instruction or pointing out safety precautions or testing procedures.
How many people came here thinking they could delete the aux and ess would no longer function? They learn and move on. Some will argue and say ESS is no good and the system sucks. I would sort of agree with that. So instead of keeping my head in the sand, I decided to learn a little more about it. I realized my issue had more to do with my driving habbits. Once I started monitoring my battery condition, I found that ESS does exactly as intended.

 

[AustinLonghorn]

Well, there you go - a great example of my "opinion" based on a couple of people with manual transmissions complaining that it was nothing but trouble! i guess I made my own point there.

A manual transmission is actually the best use case for ESS.

I want to say BMW started doing it around 2009 or so in their EU market manual transmission models. Their automatics came a few years later, because it's a little more difficult to discern what the driver is about to do next with some high probability (you're measuring brake pedal travel/force, vehicle acceleration, etc., to make a guess at when to shut the engine down).

I think it's overall a fine idea if you've reinforced the starter and engine internals to handle the slightly increased stop/start duty.

 

[ShadowsPapa]

I wouldn't consider anyone to be an idiot just because they followed the recommendation from a youtube video and did some research on their own. But when you watch one video and base everything you do on that one video, you're asking for trouble. Be informed and know what you are doing. There is no telling how many fuse arrays were blown or how many good batteries have been replaced just because someone on youtube said delete the Aux without giving full instruction or pointing out safety precautions or testing procedures.
How many people came here thinking they could delete the aux and ess would no longer function? They learn and move on. Some will argue and say ESS is no good and the system sucks. I would sort of agree with that. So instead of keeping my head in the sand, I decided to learn a little more about it. I realized my issue had more to do with my driving habbits. Once I started monitoring my battery condition, I found that ESS does exactly as intended.

The bits about starters and oil pressure are myths, too. Oil pressure doesn't protect, oil film protects. At least in my case, the truck starts bloody fast from an ESS stop and oil pressure climbs amazingly fast (keeping in mind the electronic "oil pressure gauge" is actually behind reality)
I guess I have an advantage - trained, experienced, many engine builds and even more repairs under my belt, studied oiling diagrams and other fun stuff for years. So I suppose that's it - I'm sitting with decades of experience and knowledge on most systems while others are left to the youtube experts.

 

[ShadowsPapa]

A manual transmission is actually the best use case for ESS.

I want to say BMW started doing it around 2009 or so in their EU market manual transmission models. Their automatics came a few years later, because it's a little more difficult to discern what the driver is about to do next with some high probability (you're measuring brake pedal travel/force, vehicle acceleration, etc., to make a guess at when to shut the engine down).

I think it's overall a fine idea if you've reinforced the starter and engine internals to handle the slightly increased stop/start duty.

I've got info on the starters (from an engineer) and how the PUG was modified to handle all of this.
the PCM also tracks a lot of things, making a restart a small fraction of the load of a regular start.

 

[FrankFrqnkFrank]

I wasn’t going to answer until I saw the OP was being criticized…

 

[Labswine]

Never really used it. The first two buttons pushed when I start her up are the 'Cancel ESS' button and the butt toaster (the heat is wonderful on my lower back!!!).

Have had my Overland since 7/19 (delivery date) and I'm still on the original factory batteries. I have around 38,1xx miles on her (retired so...).

 

[MT1]

LOL That's funny. Love all of the hate over something people have gotten so very wrong, assuming, and taking "the internet" BS as fact.
People who know nothing of engines keep spouting that sort of thing - oil PRESSURE doesn't protect the followers and cam lobes. In fact, it's the oil film.
If you are that concerned, never ever shut your engine off! All of that oil drains down,, things dry up and you'll ruin the engine!

Man, people wonder why I take breaks - all of the crap, so few facts.
People who have no real engine experiences telling everyone else all about it.

Love it! Keep it coming. I'm really amused at the total lack of understanding.

Funny is choosing to insult one of three points while ignoring the other two.

Oil is needed to have the film to protect from friction.

• Would you start your engine with no oil in the pan and let it run for even a couple seconds?
• Do you shift to D/first and step on the accelerator within a second of starting a warm engine, say after having made a quick stop for fuel?
• For non-ESS vehicles, do you manually shut off the engine when stopped at a traffic light or stop sign?
• Would you have paid an extra $500 for ESS as an option?

 

[Deleted member 57233]

Oil is needed to have the film to protect from friction.

• Would you start your engine with no oil in the pan and let it run for even a couple seconds?
  

ESS doesn't remove the oil from your engine

 

[MT1]

I don't really have any strong feelings about it, but I voted unfavorable just because the people who engineered the vehicle only added it to make emissions requirements. It's not something an engineer would have planned into the vehicle if they didn't have to do so because of government regulations.

I recall fleet mileage requirements being why MB and BMW started with this stuff about a decade ago, was something like 1-2 MPG, not finding anything to support that memory ATM.

 

[MT1]

ESS doesn't remove the oil from your engine

WHOA?!?! No kidding. The question was would you rely only on the film of oil to protect the metal.

 

[Lost1wing]

The bits about starters and oil pressure are myths, too. Oil pressure doesn't protect, oil film protects. At least in my case, the truck starts bloody fast from an ESS stop and oil pressure climbs amazingly fast (keeping in mind the electronic "oil pressure gauge" is actually behind reality)
I guess I have an advantage - trained, experienced, many engine builds and even more repairs under my belt, studied oiling diagrams and other fun stuff for years. So I suppose that's it - I'm sitting with decades of experience and knowledge on most systems while others are left to the youtube experts.

I need to order some of those patches! My son would love to pass them out at Tesla. BTW, he is being honored today for being one of the top 10 technicians at Tesla.

 

[Deleted member 57233]

WHOA?!?! No kidding. The question was would you rely only on the film of oil to protect the metal.

Absolutely, it takes a lot longer than you think to wear the film off and cause any damage. We are talking about a couple seconds here.

It takes longer for the oil to fill the filter and circulate after every oil change, are you going to stop changing the oil?

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