2015 JGC 8-Speed Transmission Issues - Page 2 - Jeep Garage - Jeep Forum

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  #13  
Old 05-19-2015, 03:32 PM
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Re: 2015 JGC 8-Speed Transmission Issues

I was actually trying to help answer someone's question. Trying to add some insight.

and

I don't make fun of other peoples comments, but maybe that's just me.

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  #14  
Old 05-19-2015, 04:11 PM
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Re: 2015 JGC 8-Speed Transmission Issues

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Originally Posted by GCJGC View Post
I was actually trying to help answer someone's question. Trying to add some insight.

and

I don't make fun of other peoples comments, but maybe that's just me.
Sorry these threads are just inane


Very few have actually had legit complaints here
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  #15  
Old 05-19-2015, 04:27 PM
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Re: 2015 JGC 8-Speed Transmission Issues

Well this forum sure is lucky to have you to decide which problems are "legit" and which are "inane". Looking at your responses, it seems that they are all judged to me inane. Just my opinion.
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Old 05-19-2015, 06:00 PM
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Re: 2015 JGC 8-Speed Transmission Issues

I fear that the more this transmission learns about me, the less it'll like me. It may need counseling.
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Old 05-19-2015, 08:31 PM
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Re: 2015 JGC 8-Speed Transmission Issues

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Originally Posted by Benn0 View Post
Try disabling hill start assist too. Mine drives so much better with it off.
Me too after I asked about this on another thread, Benn0 gave me the same answer, 10,000klm later i've never looked back or turned it back on.


The difference is "Chalk & Cheese"

Here's a link to a detailed thread on the 8speed, starts with a TSB update from Milous

2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14
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  #18  
Old 05-19-2015, 10:39 PM
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Re: 2015 JGC 8-Speed Transmission Issues

Just checked the TSBs and there's a Flash issued 4/21/15 which is a week after I took delivery of my JGC, relating to transmission. Guess I'll take it in.
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Old 05-19-2015, 11:16 PM
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Re: 2015 JGC 8-Speed Transmission Issues

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Originally Posted by 2014wk2 View Post
Torque converter people.

turbo lag lol
A defective one, or a design flaw?

I feel no lag what so ever.
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Old 05-20-2015, 12:32 AM
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Re: 2015 JGC 8-Speed Transmission Issues

My wife had exact same car. She got hers two weeks after mine. Hers drives like its gliding on ice. Must be a car by car basis with the transmission programming.
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Old 06-21-2015, 12:32 AM
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Re: 2015 JGC 8-Speed Transmission Issues

Eugene, I am having the same exact problem. 2015 Overland, 3.6.
I find if I shift to sport mode the shifts are more exact.
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Old 06-21-2015, 01:17 AM
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Re: 2015 JGC 8-Speed Transmission Issues

I don't think my sport mode even functions properly. All that it seems to do is hold the gear for an unusually long period of time. So RPMs will be high, but there isn't an upshift where and when you'd expect it. Just love that my $42k car drives like its being operated by someone learning stick shift for the first time.


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Old 06-22-2015, 01:18 AM
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Re: 2015 JGC 8-Speed Transmission Issues

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Originally Posted by 2014wk2 View Post
Sorry these threads are just inane


Very few have actually had legit complaints here
How would you know what others are expieriencing?
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  #24  
Old 06-22-2015, 02:22 AM
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Re: 2015 JGC 8-Speed Transmission Issues

Quote:
Originally Posted by Eugene The Jeep View Post
I don't think my sport mode even functions properly. All that it seems to do is hold the gear for an unusually long period of time. So RPMs will be high, but there isn't an upshift where and when you'd expect it. Just love that my $42k car drives like its being operated by someone learning stick shift for the first time.
Well that is what Sport mode does, so it sounds like its working. By holding higher revs it is accessing more power. It also reduces traction control, and pushes more power to the rear wheels.

The torque converter introduces a bit of lag, particularly at take off, and particularly when its cold. It just takes a while to bind up when its cold.

I haven't met a perfect auto trans that shifts when I would expect it to shift. Its always more noticable at low speeds when you are trying to build momentum, more so than at higher speeds when momentum is already there. My old landcruiser would always pick the wrong gear at a certain speed on a certain corner just down from my house. Drove me nuts.

Interesting that your wifes car doesn't have the same characteristics as your car. I guess it could be the learning, you could ask the dealer to reset it to relearn.

There's a bit of info in this TSB:
http://www.wk2jeeps.com/tsb/tsb_wk2_2101214b.pdf
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