DaltonGang
Well-Known Member
- Joined
- Sep 29, 2018
- Threads
- 74
- Messages
- 2,837
- Reaction score
- 3,989
- Location
- Houston, Tx
- Vehicle(s)
- 2018 Wrangler JLU Sport S, Rubicon Suspension, Tires, and Rims. Firecracker Red
It's A Jeep Thing.
Sponsored
Hey All,
First off, I love this Jeep! I'm coming from a 2019 Camaro ZL1 1LE and I thought I was going to miss the power and handling but I don't -- I'm too busy enjoying the high driving view, utilitarian feel, and infinite customization -- it just feels more me.
I'm experiencing two things that may be unrelated.
#1. Hesitation / "Hiccup" often while maintaining speed or light acceleration around 3rd gear & 3k. It feels like a 1/4 second cut in power. It's not super jarring, if you were not driving you'd just think we drove over a tiny bump in the road but you can feel it. It is pretty random, not just when the engine is cold -- it happens when cold and at full operating temp.
#2. Slightly rougher than expected idle? This may just be a characteristic of the engine that I need to get used to but it feels to me like the entire car vibrates a mild-but-noticeable amount when idling. Idle appears to be about 700rpm give or take.
I have about 1200 miles on the clock, 100% stock and thoughtful brake-in.
It's a manual transmission, no real load, just me and my wife and daughter.
I live in California and the weather has been clear and mid-50s.
I've been putting 91 octane in it only because I'm still at low mileage, i'll probably switch to 87 soon.
I'd appreciate any insight from you experienced Pentastar 3.6L owners.
Thanks for your help!
Yes - I notice the same 1/4 second "skip", at around 3k RPM. I will try to take a video as well. I think you hear it with the engine more than feel it. It may have to do with the e-torque as I believe it does help to slow the engine down for shifts, but the engine is not shifting during this time, could be a "bug".
I'm running 87 and see no issues with performance or rough idle.
My 3.6 (auto) vibrates at idle, I usually run mobil 87 gas, sometimes shell. It's been doing that since the day I brought it home. I did notice mine idles a little bit smoother in neutral.
It's a strong enough vibration that if I'm carrying cups of soda with ice in them, the ice will rattle in the cup lol. If nobody's sitting in the passenger seat I can see it jiggle.
I figured it might be motor mounts or something but I've had the hood up with the engine running before and haven't really seen anything that'd indicate a problem. Meh. Will get it checked out once things get healthier outside lol. Maybe our motors were made on a Friday.
6speed here, mine does the same hiccup. did it since it was new. did the clutch recall unfortunately the dealer said it passed the "stall test" even though i asked them to drive the damn thing and feel it slipping. The clutch sucks in this thing. Dealer says nothing wrong with it. IM eventually going to get tired of it put a centerforce or something stronger and better in it. i have almost 40k on mine btw.
Good morning everyone,I have an auto and it has been doing it since day 1. I always called it a burp and at first I thought it was cool and no big deal, however when I am out wheeling it is very annoying when trying to negotiate rocks or hills or a mudhole. not sure what the cause is or why.
I just googled it -- apparently I can use my HP Tuners OBD2 data logger on this Jeep! If the TC experiment fails, I'll spend some time datalogging to see if I can trigger the hiccup and capture timing or knock retard, maybe even AFR if the computer has it.I have a 6 speed 12 k miles and have the same mis or stumble. Happens around 2500-3000 rpms. It is not clutch related. Without looking at data I want to say it is a lean issue or to aggressive or sudden change from the VVTI.
Will do! Don't worry about your rescue op -- I think enough of us here have the issue that it's probably just something common and not caused by the strain. Rescues are in the Jeep's DNA!Hey, OP- please get back to us on your little experiment; I’m really looking forward to what you find out.
I have the 6 speed too and just noticed this. I have about 25,000 miles on mine and never experienced this until the last couple hundred miles. The only thing I’ve done recently to strain the jeep was rescue a Rogue out of a ditch when it snowed a few weeks ago, which made me think maybe I put too much stress on the clutch... but your traction control theory is interesting too because it has been raining a lot lately here. I’ll pay more attention tomorrow.
I was going to say, this is a pretty well documented issue. My 2020 has this intermittent hesitation also. I wouldn't think anything of it unless it gets worse. Something with factory ECU tune I suspect.Thanks everyone for the input. I will check with the dealer, you never know but in my experience they won't help you unless you can reproduce the issue consistently or it's just broken.
Fuse box check is a good tip, thank you!
I found this thread, sounds similar to me:
http://www.ausjeepoffroad.com/forum/showthread.php?t=151736
So far it hasn't been a serious issue, just an annoyance, I'm okay with waiting to see if it gets worse or goes away. I was just hoping to hear from one of you saying "This happened to me and here's how you fix it"
Thanks all!
I tried searching and found nothing. Can you share a link to some of the similar cases?I was going to say, this is a pretty well documented issue. My 2020 has this intermittent hesitation also. I wouldn't think anything of it unless it gets worse. Something with factory ECU tune I suspect.