Good point . However , we asked before : (a) WHO is pressuring them , and WHY are they ALL going along with something clearly unpopular ; (b) WHAT quantitative amount of fuel savings ; and (c) HOW do they justify the extra strain on the STARTER going on all the time ? Three questions no one can answer .
In the US, it's the EPA and their mandated gas mileage requirements that must be met for vehicles to be legally sold here. Under current EPA regulations and unless they are changed before then, by 2025 a manufacturer's line of new vehicles will have to average 51.4 mpg!
I think logic suggests that it must wear out the starter faster than a vehicle not equipped with ESS for the obvious reason that it's being utilized much more frequently.
I've gotten into the habit of making my Jeep-starting-process a two-step one. I hit the start button then immediately slide my finger over to the ESS button to disable it.
My JLUR is in the shop for the same reason. Been in there almost a week and a half and they have yet to diagnose the issue. Except mine followed up with a check engine light... hoping to get it back soon.I havenāt seen this issue posted yet...
Bought a JLU Sahara last month, automatic trans with Selec-Trac, and 3 weeks ago I noticed an occasional engine stutter or sudden hesitation at random while in motion. The Jeep stalled while pulling out of my garage last week. Two days ago I was driving at 50 mph when I felt 3 successive lurches which felt like the engine was going to stall, then got a "Service Stop/Start System" warning on the dash without a CEL.
I took it to the dealer, who couldnāt find an error code. They wouldnāt be able to work on the car until Monday, so I drove it home to bring it back on Monday.
Today, it near-stalled three times again doing 30 mph and threw a CEL. I have no problems if I disable ESS. Why would ESS have anything to do with driving at speed? Has anyone else experienced this? I always drive belted in, and didnāt open the door. The hood is latched tight.
Hereās a dash light photo
Basically, "Here is the test that you need to pass and you need to do whatever it takes to pass the test, even if it has nothing whatsoever to do with the real world". ESS is just a way for the manufacturers to game the system. Not really that different than what VW did with their diesel emissions testing. Not that I had a problem with VW's actions since it meant that you got good fuel economy and didn't have to add that stupid ass DEF to your vehicle.
Very true , and the FUNNY part is that ESS probably does NOT improve mileage even a fraction of one mpg . Total waste of money and electronic circuitry .
Oh, it probably saves a little fuel IF you drive EXACTLY the same way that the CAFE test is written.
Now, on a side note, I noticed something when I was in Orlando recently. The traffic lights at the various intersections near the hotel where I was staying were a lot longer duration than what we see around Houston. Around here, we have lights that are controlled by way of a sensor in the road (basically just a wire that is run in a loop) that detects when a vehicle is over it. After someone has been stopped at an intersection for a certain period of time, the light will change for him. Of course, the length of time will depend on whether the sensors in the intersection roads detect cars crossing them. In Orlando, it seems that they either did not have this since even when no cars were coming through the intersection from the other directions, it took a long time for the light to change. As such, I think the ESS system might be more useful in that part of Orlando than it would be in Houston.
I open the tailgate , lift up the rear window , slam the tailgate with the rear window open , crank down the driver and passenger windows , and drive at 80 mph along the beach ; automatic air conditioning without the ESS .
Well, because of the water temperature of the Pacific Ocean around there, it's probably a bit more comfortable than doing the same thing in Florida or along the Texas Gulf Coast.
I ready later in the thread, you were able to resolve the concern. It sounds like you still went to the dealer. If you need any assistance during service, do not hesitate to send us a direct message.I havenāt seen this issue posted yet...
Bought a JLU Sahara last month, automatic trans with Selec-Trac, and 3 weeks ago I noticed an occasional engine stutter or sudden hesitation at random while in motion. The Jeep stalled while pulling out of my garage last week. Two days ago I was driving at 50 mph when I felt 3 successive lurches which felt like the engine was going to stall, then got a "Service Stop/Start System" warning on the dash without a CEL.
I took it to the dealer, who couldnāt find an error code. They wouldnāt be able to work on the car until Monday, so I drove it home to bring it back on Monday.
Today, it near-stalled three times again doing 30 mph and threw a CEL. I have no problems if I disable ESS. Why would ESS have anything to do with driving at speed? Has anyone else experienced this? I always drive belted in, and didnāt open the door. The hood is latched tight.
Hereās a dash light photo
So it turns out this is not an ESS issue at all, though it does seem to trigger the ESS warning. The problem is the crank position sensor itself. My Jeep is sitting in the shop now waiting for a new sensor (on backorder), so I probably won't have it back until next week. This is disappointing for a vehicle I have only been driving for about 3 weeks.
