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  #13  
Old 11-01-2015, 04:26 PM
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Re: Gears not holding on steep hill

An update: after many interactions with Jeep Australia, they insist that my car already has the tsb applied, although the mechanic and I don't believe that. In any case, the Eco light won't stay off, and that is supposed to be part of the tsb.
BUT, I have noticed another issue, which may or may not be related. In normal operation (high range on the highway), if I floor the throttle from a standing start, the car upshifts each time at 3700rpm, not the 4500 red line. So I thought I'd use the paddles in manual mode. Select "1" when stopped, and floor it. And guess what? It goes through the gears as if it was in drive (except the display shows the actual gear, not "D") up shifting at the same 3700rpm. Eco on or of, sport mode or not, in all cases, exactly the same.
Similarly, if I select say fourth, and slow to a near stop, the car downshifts to first or second, and moves off in that gear, not fourth.
Basically, I can't see what manual mode does, other than force a (very) temporary shift to a higher or lower gear.
Easy for someone else to test - please let me know if "they all do it"
Thanks,
Russell

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  #14  
Old 11-01-2015, 04:56 PM
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Re: Gears not holding on steep hill

Russell, remember the paddles are not a "manual" or as they called it when I was a kid, "standard" transmission.
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Old 11-01-2015, 05:22 PM
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Re: Gears not holding on steep hill

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Originally Posted by AAAA View Post
Russell, remember the paddles are not a "manual" or as they called it when I was a kid, "standard" transmission.
That is probably the distinction, although I would have expectedly greater ability to control the shifts than they give me. I had a BMW years ago which had a "manual" mode, and it meant what it said - if I selected a high gear it would try to start off in that gear, and it would hold a gear to the red line. So, maybe things have just changed.
Russell
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Old 11-02-2015, 03:03 AM
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Re: Gears not holding on steep hill

I noticed that early on. I took the GC up some tight and twisties, and then a floor it session all in paddle mode. My conclusion was that it was nigh on pointless, I could downshift slightly earlier, and that was about it.
For MY16 you will be able to permanently disable the paddles, for those that seem to knock them accidentally.
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Old 11-02-2015, 12:22 PM
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Re: Gears not holding on steep hill

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Originally Posted by lt4vette View Post
That is probably the distinction, although I would have expectedly greater ability to control the shifts than they give me. I had a BMW years ago which had a "manual" mode, and it meant what it said - if I selected a high gear it would try to start off in that gear, and it would hold a gear to the red line. So, maybe things have just changed.
Russell
Yes. It's manual control of an automatic transmission within predefined parameters!
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Old 06-19-2016, 09:11 PM
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Re: Gears not holding on steep hill

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Originally Posted by lt4vette View Post
I have a my 2014 JGC diesel Overland. For the first time since I bought it, I came across an extremely steep hill on a 4wd track. In Low Range "mud" and Offroad 2 suspension setting, I selected first gear with the paddles, to maximise engine braking - as one would in a manual transmission. Problem was, the car would suddenly upshift to second gear, and then if I let it go a bit fast, it would upshift to third. I don't know if it would have upshifted to fourth, as that would have been too fast. In fact, third was too fast.
It was not an engine revs issue, as the upshifts were occurring around 2000 rpm. It seemed to be somehow related to speed, or maybe acceleration though, as it happened as the speed built up quickly. It does not happen on the flat, and will rev to at least 4000 using the throttle.
Has anyone else experienced this, or have an explanation?
Thanks,
Russell

Hello Russell
Have you found a solution to the low range issue ? .... Our 2015 does exactly the same, & I have had exactly the same response from service depts.... ie : "Your car already has the TSB update applied....... use hill descent.... blah blah blah... they all do that "
The car is simply dangerous to drive in steep country. I'm an experienced 4wder , but this transmission issue is potentially lethal ! In dry conditions, it is possible to work around it, but on our last trip on some steep, greasy clay hills I was crapping myself !!!!!! ........ in fact I've given up 4wding in this vehicle until the issue is fixed
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Old 06-20-2016, 12:34 AM
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Re: Gears not holding on steep hill

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Originally Posted by steevo58 View Post
Hello Russell
Have you found a solution to the low range issue ? .... Our 2015 does exactly the same, & I have had exactly the same response from service depts.... ie : "Your car already has the TSB update applied....... use hill descent.... blah blah blah... they all do that "
The car is simply dangerous to drive in steep country. I'm an experienced 4wder , but this transmission issue is potentially lethal ! In dry conditions, it is possible to work around it, but on our last trip on some steep, greasy clay hills I was crapping myself !!!!!! ........ in fact I've given up 4wding in this vehicle until the issue is fixed
No, it's still not solved. The tech at the dealer has now raised two requests for technical help, and each time they cut and pasted the HDC instructions for me. I have been trying to contact JRA for two months now, with no success. In my case the dealer service department agrees with me that it is a problem and HDC doesn't solve it - but they seem to have zero influence on Jeep Australia.
I'll,post any updates here. Apart from you, there was one other who had the problem, but his was fixed with the tsb. I KNOW the tsb could not have been applied, but gave up on that and focussed on the symptom - with the same non-result!
Thanks,
Russell
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Old 06-20-2016, 12:39 AM
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Re: Gears not holding on steep hill

1) Are you keeping a paper trail of your attempts to resolve the issue?
2) Is there a hill leading down to the dealer showroom?
3) Can you keep a straight face and say "whoops" at the same time?
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Old 06-20-2016, 12:45 AM
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Re: Gears not holding on steep hill

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Originally Posted by Governor View Post
1) Are you keeping a paper trail of your attempts to resolve the issue?
2) Is there a hill leading down to the dealer showroom?
3) Can you keep a straight face and say "whoops" at the same time?
If you like to pm me your email@, I'll send you the email chain. The dealer has records of their interactions.
The mechanic at the dealers has reproduced the behaviour, so THEY believe me. In fact, I suspect JRA believes me, just think that HDC should overcome it, and in any case, don't know what to do.
Russell
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  #22  
Old 06-20-2016, 12:49 AM
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Re: Gears not holding on steep hill

One of us misunderstood the other. I'm on your side. I was suggesting that if there was a hill leading to the showroom that you drive the jeep through the window and say oops, then blame the ongoing problem. It would get their attention.

My bad. Thousands of comedians out of work and here I am trying to be funny. Some Union will soon be on my ass.
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  #23  
Old 06-20-2016, 01:18 AM
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Re: Gears not holding on steep hill

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Originally Posted by Governor View Post
One of us misunderstood the other. I'm on your side. I was suggesting that if there was a hill leading to the showroom that you drive the jeep through the window and say oops, then blame the ongoing problem. It would get their attention.

My bad. Thousands of comedians out of work and here I am trying to be funny. Some Union will soon be on my ass.
Actually Govenor, I think it's my fault - I thought I was still talking to Steevo!
In any case Steevo, if you'd like the email chain, let me know.
And governor, have you heard of this problem in the States?
Thanks
Russell
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  #24  
Old 06-20-2016, 01:33 AM
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Re: Gears not holding on steep hill

Hello again
I know of at least 2 other 8 speeders with this issue.... but the owners just seem to accept it as normal !....

My local Jeep service bloke is on my side & is also having difficulty getting a sensible response from FCA.
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