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  #25  
Old 06-20-2016, 12:39 AM
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Re: Gears not holding on steep hill

EDIT: Response to It4vetter. Steve beat me to posting. I should learn to quote every post I respond to. Sorry.

Lol. Now that's funny! I've had mine about six weeks and have only been down one steep hill in four low. Everything felt weird that trip down but I have a lot to get used to. I do remember thinking the first time I heard hill descent growling like chains in a steel barrel rolling down a hill "there's no fracking way that's normal" - posts on the forum say it is. I still don't believe it lol. I can probably try to reproduce the problem in my 2011 tomorrow and report back. Some other guys and I are leasing 3700 acres of paper company land that joins my personal property. It's all hills. I'll let you know what I find. I'm kind of curious myself. It would sure be different than any other four wheel drive I've owned since '78.

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  #26  
Old 06-20-2016, 06:59 PM
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Re: Gears not holding on steep hill

I am still experiencing the issue too. I have raised it multiple times when taking it in for service but nothing has been done to resolve it yet. I am considering raising it with Jeep Australia directly.
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  #27  
Old 06-20-2016, 07:54 PM
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Re: Gears not holding on steep hill

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Originally Posted by indydof View Post
I am still experiencing the issue too. I have raised it multiple times when taking it in for service but nothing has been done to resolve it yet. I am considering raising it with Jeep Australia directly.
Good luck with that - please let us know if you get a response. As I offered to Steevo58, if seeing what I have written to them is helpful, pm me your email @ and I will forward the emails.
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  #28  
Old 07-19-2016, 05:57 PM
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Re: Gears not holding on steep hill

An update. I am currently at the dealers waiting for my JGC - spontaneously sprung a radiator leak with just 2 months of warranty to go.
Anyhow, from the technical department at JRA, in response to another tech case being opened by Shaun at the dealer:
"Shaun, as per the previous case this is normal operation for this vehicle. I have personally used hill descent on some steep hills and can confirm the same operation as the owner (if hill descent is not used the vehicle will upshift). If the hill is steep enough to cause the upshift in low range then hill descent needs to be used as this is why it was designed. There are no changes to the software coming to resolve this as the TCM is upshifting to save damage to the transmission. Please let me know if you need this case to remain open."
So, the good news is someone actually understands the problem exists, although they don't acknowledge that hill descent is not a solution on hills with large water diversion humps.
Bad news is it is a design characteristic, and not an error to be fixed.
Basically, it seems the transmission is not tough enough to work as a "proper" 4wd without being babysat by a computer.
For me, I'm probably going to give up - getting such a characteristic changed is likely beyond a consumers influence. And besides, if any other component spontaneously fails as did my radiator (a failure of the plastic), then I've decided the Jeep will go. If this had happened a week later it would have been somewhere up a 4wd drive track in western Queensland - where I'm still hoping to leave for today.
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  #29  
Old 08-17-2016, 06:04 PM
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Re: Gears not holding on steep hill

Hello Russell
That is a very disappointing response from FCA. Sounds like just another brush off from someone who has no understanding of, or experience in, driving a 4wd.

Do they really suggest that if we go to the Vic High country & come to those long downhills that we should drive in Hill Descent mode at a max of 8klm/hr for up to 2or 3 klm at a time ?

Our vehicle is still jumping out of gears.

Was 4wding last week with 2 x other ( very new) GC's last week & they did not jump out of gears on long downhill slopes !!!!!!!!!!!!

I am still in "discussions" with technical people at FCA, if I get a better response, I'll let you know.

Or maybe we could get a good deal on 2 x Toyotas !!!!!!
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Old 08-17-2016, 09:34 PM
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Re: Gears not holding on steep hill

I am also still experiencing the issue if you need another example to provide to Jeep. 2014 Overland Diesel.

Daniel
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  #31  
Old 08-17-2016, 11:12 PM
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Re: Gears not holding on steep hill

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Originally Posted by steevo58 View Post
Hello Russell
That is a very disappointing response from FCA. Sounds like just another brush off from someone who has no understanding of, or experience in, driving a 4wd.

Do they really suggest that if we go to the Vic High country & come to those long downhills that we should drive in Hill Descent mode at a max of 8klm/hr for up to 2or 3 klm at a time ?

Our vehicle is still jumping out of gears.

Was 4wding last week with 2 x other ( very new) GC's last week & they did not jump out of gears on long downhill slopes !!!!!!!!!!!!

I am still in "discussions" with technical people at FCA, if I get a better response, I'll let you know.

Or maybe we could get a good deal on 2 x Toyotas !!!!!!
That's very interesting about the new ones. Somebody must have recognised the problem to have fixed it. Yes, please let us know how you get on.
I've been looking at Landcruiser features and pricing ! My Jeep is just about out of warranty, and after the cracked radiator, I'm a bit nervous.
Russell
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Old 08-18-2016, 04:34 AM
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Re: Gears not holding on steep hill

I think when off-roading with a JGC or any modern SUV with 4x4 capability, it is almost a disadvantage to have traditional 4x4 experience. Shortly after I bought my MY12, I took it on a very hard track (B-class). It was sliding over rocks down a very steep hill. I had it in low range, rock mode and hill descent on. Adrenalin was rising, then I don't know what I did, I may have instinctively touched the gear stick or the brake but hill descent switched off and the car was in free fall. By some miracle I managed to control it and bring it to a stop. Since then, I put it into hill descent, touch nothing except the steering wheel and just wait till I get to the bottom. I haven't had the problem since. Likewise, going up hill, I put it low range and just chug chug slowly up the hill. I once followed a Defender with lockers and it was scrabbling and sliding while my Jeep just chugged up with hardly disturbing a pebble. For what it's worth, in my view, it's all about holding one's nerve and gently letting the car do it's thing.
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  #33  
Old 08-18-2016, 05:51 AM
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Re: Gears not holding on steep hill

I do understand that Bob, and I'm more than happy in almost all situations to let HDC do its thing. The problem I have is that on very steep fire trails, they build very steep mounds/berms or whatever, across the track to divert water to the sides. The approach side of these berms is distinctly "uphill", even though the track itself is steep downhill. With HDC on, the car stops when it starts to climb the berm. This means that you need to touch the throttle. When you touch the throttle, the HDC disengages, which is fine, except when you release the throttle as you cross the top of the mound, the HDC *suddenly* reactivates. It decides you are now going too fast down the almost vertical downside of the berm, and applies the brakes. When it did this to me the first time, it was on a track which sloped to the side - towards a ravine. Locking the back wheels caused the rear of the car to slide towards the ravine - very scary.
The only way down was to turn the HDC off, select low first with the paddles, use the brakes, and keep reselecting first as it shifted up.
If HDC worked to also apply throttle to maintain its selected speed, maybe it would be OK, but it doesn't.
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Old 08-18-2016, 08:12 PM
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Re: Gears not holding on steep hill

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Originally Posted by lt4vette View Post
I do understand that Bob, and I'm more than happy in almost all situations to let HDC do its thing. The problem I have is that on very steep fire trails, they build very steep mounds/berms or whatever, across the track to divert water to the sides. The approach side of these berms is distinctly "uphill", even though the track itself is steep downhill. With HDC on, the car stops when it starts to climb the berm. This means that you need to touch the throttle. When you touch the throttle, the HDC disengages, which is fine, except when you release the throttle as you cross the top of the mound, the HDC *suddenly* reactivates. It decides you are now going too fast down the almost vertical downside of the berm, and applies the brakes. When it did this to me the first time, it was on a track which sloped to the side - towards a ravine. Locking the back wheels caused the rear of the car to slide towards the ravine - very scary.
The only way down was to turn the HDC off, select low first with the paddles, use the brakes, and keep reselecting first as it shifted up.
If HDC worked to also apply throttle to maintain its selected speed, maybe it would be OK, but it doesn't.
Ah, I see. Yes that would be tricky. I tried to replicate it locally but was unable to do so. I have the 5-speeder with the transfer box. I might be different with the 8-speeder. In auto mode, low range and HDC on, it went down hill smoothly and even allowed me accelerate a bit. At the bottom of the hill, it stopped. I applied some acceleration and off it went up hill as well but the HDC stayed on. OK, this is no way near as extreme as your situation. Next time I'm off-road I'll try it again.
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  #35  
Old 08-24-2016, 12:31 AM
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Re: Gears not holding on steep hill

Quote:
Originally Posted by lt4vette View Post
That's very interesting about the new ones. Somebody must have recognised the problem to have fixed it. Yes, please let us know how you get on.
I've been looking at Landcruiser features and pricing ! My Jeep is just about out of warranty, and after the cracked radiator, I'm a bit nervous.
Russell
I'm also pretty nervous about owning this car out of warranty ( although the downhill problems may kill me before I need to worry ! ) We have already had over $30,000 of warranty work................ imagine if you had to foot the bill for that yourself !!!!!!!!!!!!!!!!!!!
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  #36  
Old 08-24-2016, 06:35 PM
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Re: Gears not holding on steep hill

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We have already had over $30,000 of warranty work................ imagine if you had to foot the bill for that yourself !!!!!!!!!!!!!!!!!!!
Holy mother of pearl!
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