ESS System

[WranglerMan]

Good morning Gents,

I am sure this may have been discussed but I cannot find any posts on it using the search so here is my question/issue:

I honestly dislike the ESS system and if I remember to do it I turn it off every time I get in to go someplace, I have tried leaving it engaged but I hate the stops and starts, I am not concerned about the small fuel savings so with all of that said and yes I have looked at the mods to bypass the hood switch to disable this but my OCD wont allow me to stare at that gleaming circled A in the display is there a way to disable this without it showing its disabled, I know there is a Gent that makes a module that plugs in to do this but not for the Wrangler so what are my options, also is there any negative side effects to bypassing it all the time, I know the ECM controls the voltage on charging that secondary battery that runs all the accessories during normal ESS operations so if I bypass it will that have a negative affect on that secondary battery getting charged if its not being used

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[swozey]

The Tazer and the FlashCal will disable ESS. Flashcals posted in this sub up top as well

No idea about the other stuff. The ESS in this doesn't bother me at all, especially since I can control it with how much pressure I apply to the brake, so I've never cared about it.

 

[Chocolate Thunder]

...since I can control it with how much pressure I apply to the brake, so I've never cared about it.

Can you explain how that works exactly? I don’t have my Jeep yet or know details of how the system works.

 

[swozey]

Can you explain how that works exactly? I don’t have my Jeep yet or know details of how the system works.

You'll notice it when you start driving it (I'm only at 140 miles). Basically when you come to a stop there's a pressure point in the brake pedal, maybe 1/2 or a little less where you feel this resistance and if you stay above that line the engine won't shut off. If you push it right past that halfway point the engine will shut off if certain things aren't met, like if the engine needs to be on for your AC temperature or anything it will keep the engine on.

Takes some getting used to but I'm only at 140miles and can pretty reliably keep the engine on/off if I want. Right hand yields onto major roads are a bit tricky for it, though.

I'm really impressed with the ESS in this. Other than how loud the motor is when it cranks up it is SMOOTH.

 

[hubble]

My F150 is the same way. If I don't press down on the brake pedal very hard it won't shut off, but I usually let the ess do its thing. It took a little bit to get use to but now its no big deal. I will say I don't think it helps with mpg very much if any. I've driven with it off for a few tank fulls and I didn't see any real difference in mpg.

 

[Sean L]

@WranglerMan @Jeep noob

I've made a list of tips to use the ESS Effectively while you're driving, to take advantage of the quirks of the system, and you can find it here... https://www.jlwranglerforums.com/forum/threads/how-to-take-advantage-of-ess-effectively.5927/

Also OP, to answer your question if you do permanently disable the ESS it won't cause any more extra wear on the engine than if the vehicle was never equipped with ESS to start with, as people hit the disable button all the time. You will have the added benefit of a beefy starter and two batteries as well.

 

[Kysport]

Absolutely HATE this feature. Can't wait for the plug in module. The guy at SmartStopStart.com told me they would have one for the JL around April so I'm hopeful.

 

[Sean L]

Absolutely HATE this feature. Can't wait for the plug in module. The guy at SmartStopStart.com told me they would have one for the JL around April so I'm hopeful.

I recommend you check out my tips on how to use ESS Effectively, it may help you hate it less.

 

[WXman]

I LOVE ESS. When I'm sitting at a drive-thru waiting for all the slow pokes in front of me... no thoughts of $$$ being burned and pushed out the tail pipe! When I'm at a long red light... I got time now baby! No money being wasted! Turn the radio up and enjoy the day!

ESS is one of those ideas that makes you wonder why it took so many years for them to implement this. Would have been awesome a decade ago when gas was $4.29/gallon!

 

[$uicide$hift]

I LOVE ESS. When I'm sitting at a drive-thru waiting for all the slow pokes in front of me... no thoughts of $$$ being burned and pushed out the tail pipe! When I'm at a long red light... I got time now baby! No money being wasted! Turn the radio up and enjoy the day!

ESS is one of those ideas that makes you wonder why it took so many years for them to implement this. Would have been awesome a decade ago when gas was $4.29/gallon!

I don't mind the ESS I just find that it is not activated much. I know there are a lot of conditions to be met but I should be in those conditions a lot. If I am in a drive through with a line it shuts down when I first come to a stop. After that as the line moves and I move up the engine does not shut down again at all even if I release brake completely and then apply fully again. I can sit for 5 minutes and it won't cut off again.

 

[swozey]

I don't mind the ESS I just find that it is not activated much. I know there are a lot of conditions to be met but I should be in those conditions a lot. If I am in a drive through with a line it shuts down when I first come to a stop. After that as the line moves and I move up the engine does not shut down again at all even if I release brake completely and then apply fully again. I can sit for 5 minutes and it won't cut off again.

If you're running AC or just recently stopped and went it's not going to stop again. I don't know the exact method to force a stop but once you get used to it you can basically control stop/start straight from the pedal. If I'm slow rolling through a line I just don't depress the brake past the shudder/halfway point that kicks off the engine.

ESS won't stop the engine at all if heater/AC need it, etc.

 

[WranglerMan]

@Sean L thanks for the link and I read thru all 19 pages and I got some ideas that I may try, I am not against those that use it and glad it works for a lot of you but for me it’s just not and it has nothing to do with wanting to accept new technology,I started on computers back before maybe some of you were born useing a 386 SX 16 with 2mb of memory and an 80mb HD and everything had to be done from a DOS prompt and I wrote batch programming to execute programs and now I have a Synology NAS that I setup and run wireless on pretty much everything but then I also know how to break my back on the back end of a shovel so with all that said I am going to try several options and try and make it work but if it comes down to it I may pull the sensor from under the hood or buy a module once available from the start stop guy or just push the button everytime I get in if I remember but it should be a choice we make not the manufacturer telling us we have to accept it, I fully understand the need to be more green and can apprecite it as we only have one planet but if government were more serious about it the combustion engine would be long gone and we would be driving electric golf carts

Overall I am really enjoying my new Wrangler JL even with the quirks of ESS and a second battery that is pretty impossible to get to unless you take a lot of stuff apart but then again technology has to move forward so time will tell how all of this works out, my biggest concern was if bypassing the ESS if it would cause any issues on battery charging but guessing it won’t and if I decide to bypass it I will be afforded the benefit of the extra battery and beefier starter

 

[$uicide$hift]

If you're running AC or just recently stopped and went it's not going to stop again. I don't know the exact method to force a stop but once you get used to it you can basically control stop/start straight from the pedal. If I'm slow rolling through a line I just don't depress the brake past the shudder/halfway point that kicks off the engine.

ESS won't stop the engine at all if heater/AC need it, etc.

NO AC or Heat, windows down, Jeep at temperature. My issue is not that it is shutting off, my issue is it will NOT shut off when in a drive up line situation after the first stop in line. When the line moves and I move up and press the brake again hard it stays running when I expect and want it to shut back down.

I was thinking that this was intentional by the system but it sounds like the system shuts others off when in a drive up all the time.

 

[swozey]

If you had just stopped it's not going to stop again in my experience. It's assuming you're yielding, I would imagine. I have a lot of Frontage road Uturns yields to take here in Austin and I'd go insane if everytime I had to stop at a line the engine shut off.

These things, since they're not very common elsewhere, "Texas U-Turn" I guess.

Some actual details on when it stops/doesn't stop would be cool, guess I could look those up.

https://steamuserimages-a.akamaihd....075/EB32EC06EF281B232C6750DEB5B735B75F3B229B/

 

[Sean L]

NO AC or Heat, windows down, Jeep at temperature. My issue is not that it is shutting off, my issue is it will NOT shut off when in a drive up line situation after the first stop in line. When the line moves and I move up and press the brake again hard it stays running when I expect and want it to shut back down.

I was thinking that this was intentional by the system but it sounds like the system shuts others off when in a drive up all the time.

There is a certain speed you have to hit in order for the ESS to activate again. I'm not sure how fast it is but if you just let the engine idle you forward it won't shut down after you stop again.

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