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  #685  
Old 10-23-2015, 10:43 AM
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Quote:
Originally Posted by overlanding View Post

I have 8k miles on it. As of last month, the transmission has the latest flash. So I'm not sure if a more recent one has came out since then, but I don't think so.

Basically this transmission is a POS because they can't figure out how to manufacture and program it? Wouldn't it be cheaper to leave it the same as the Hemi and EcoDiesel's?? But instead it's a piece of junk because they wanted to make it cheaper.

I find nothing wrong with the Pentastar V6 and the 8 speed transmission. It's the fact that Chrysler still can't pair it together efficiently after 2 1/2 years, that I'd avoid this combo all together. And I would recommend anyone else to avoid this combo as well.

Besides, its the combo that you'd get in a rental car. I don't want that lol so I regret choosing it. Seriously considering a HA EcoDiesel. Or just another Hemi.
I think the problem is that chysler builds the V6 zf 845RE and modified it and doesnt know what they are doing. ZF builds the v8/diesel zf 8HP70 and knows how to do it. The 845REs chysler is still learning how to build and tune them and many are feeling that beta pain.

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  #686  
Old 10-23-2015, 01:22 PM
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Re: If your 8spd trans is rough, put your hand up

Latest TSB was issued 10/9/15. However, after having received the first two previous and yielding no result, I'm inclined to believe my service manager, who told me yesterday that TSBs are only effective if a Malfunction light is present. No malfunction light, no issues (according to Chrysler). Hopefully he's wrong. I was optimistic that TSB 21-027-15 Rev C was going to be the magic bullet


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  #687  
Old 10-23-2015, 03:08 PM
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Originally Posted by Eugene The Jeep View Post
Latest TSB was issued 10/9/15. However, after having received the first two previous and yielding no result, I'm inclined to believe my service manager, who told me yesterday that TSBs are only effective if a Malfunction light is present. No malfunction light, no issues (according to Chrysler). Hopefully he's wrong. I was optimistic that TSB 21-027-15 Rev C was going to be the magic bullet

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Your service manager is full of shit. If you read the tsb's near the end of the literal, there is a box that tells the dealer what service code to use. There are two service codes. One is for customer concern, in other words, a problem has occurred. The second code is routine flash, which means the dealer is updating the program because it is updated software. My dealer always updates my software whether I bring it to their attention or not. No different than your home computer. Don't you update that to the most recent software version?

It's simple. If you have a problem and the tsb doesn't solve it, there is something else wrong.
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  #688  
Old 10-23-2015, 05:05 PM
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Re: If your 8spd trans is rough, put your hand up

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Originally Posted by jeepgrady View Post
Your service manager is full of shit. If you read the tsb's near the end of the literal, there is a box that tells the dealer what service code to use. There are two service codes. One is for customer concern, in other words, a problem has occurred. The second code is routine flash, which means the dealer is updating the program because it is updated software. My dealer always updates my software whether I bring it to their attention or not. No different than your home computer. Don't you update that to the most recent software version?

It's simple. If you have a problem and the tsb doesn't solve it, there is something else wrong.

Makes sense


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  #689  
Old 10-23-2015, 05:19 PM
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Re: If your 8spd trans is rough, put your hand up

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Originally Posted by silvermax04 View Post
I think the problem is that chysler builds the V6 zf 845RE and modified it and doesnt know what they are doing. ZF builds the v8/diesel zf 8HP70 and knows how to do it. The 845REs chysler is still learning how to build and tune them and many are feeling that beta pain.

Right on the money. the Germans designed and build the ZF in Friedrichschafen, (I'll be there in 2 weeks, great place and great beer !) and FCA licensed the technology but they just cannot meet the stringent German assembly spec's for QC. I doubt improvements are even on the FCA list of priorities, and a class action lawsuit should be filed for to make them do something about such a poor performing unit.
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  #690  
Old 10-23-2015, 07:55 PM
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Quote:
Originally Posted by dmsfun View Post

Right on the money. the Germans designed and build the ZF in Friedrichschafen, (I'll be there in 2 weeks, great place and great beer !) and FCA licensed the technology but they just cannot meet the stringent German assembly spec's for QC. I doubt improvements are even on the FCA list of priorities, and a class action lawsuit should be filed for to make them do something about such a poor performing unit.
Here's my twist.....It's not a German/US worker quality thing. I believe it's a design thing. FCA modified some clutches to "better handle their V6 specific platform requirements" and now they are chasing their tail with using programming to assuage the effects of their physical design meddling. Also, you should know that some of the 8HP70 trans are now made in US at the new ZF plant they had to build to handle the volume needs in the US.
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  #691  
Old 10-23-2015, 08:12 PM
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Re: If your 8spd trans is rough, put your hand up

8HP70 is built in the US now but built by ZF not Chrysler, that's the key there lol
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  #692  
Old 10-23-2015, 08:18 PM
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Re: If your 8spd trans is rough, put your hand up

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Originally Posted by dmsfun View Post
Right on the money. the Germans designed and build the ZF in Friedrichschafen, (I'll be there in 2 weeks, great place and great beer !) and FCA licensed the technology but they just cannot meet the stringent German assembly spec's for QC. I doubt improvements are even on the FCA list of priorities, and a class action lawsuit should be filed for to make them do something about such a poor performing unit.

Do me a favor - when you're in Germany, pick me up a new, German-built 845RE.


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  #693  
Old 10-23-2015, 08:20 PM
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Re: If your 8spd trans is rough, put your hand up

Quote:
Originally Posted by Eugene The Jeep View Post
Do me a favor - when you're in Germany, pick me up a new, German-built 845RE.


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He can't. In Germany it's the un-modified by Chrysler original ZF unit, 8HP45.
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  #694  
Old 10-23-2015, 08:28 PM
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If your 8spd trans is rough, put your hand up

How is it that the German transmission is amazing but anything else German, like an Audi, is a reliability nightmare lol I guess there are trade offs with everything. Just wish Chrysler didn't have to mess with the V6 tranny.
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Old 10-23-2015, 08:30 PM
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Re: If your 8spd trans is rough, put your hand up

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Originally Posted by silvermax04 View Post
8HP70 is built in the US now but built by ZF not Chrysler, that's the key there lol
EDIT: While I feel a German plant would win an auto build quality contest on average with a US plant for a whole lotta reasons....the Gray Court, SC ZF plant employs US workers.

The difference is not the workers, it is the design. The 8HP70 built in the US by ZF employing US workers has far fewer issues solely because it is physically not modified from the original design. The only difference between the 8HP70 that goes into our 5.7l/6.4l/3.0l Jeeps and the other vehicles [BMW 7 Series (F01), BMW X5 (E70), Dodge Durango V8, Iveco Daily, Ram 1500 V6, V8, & diesel, Range Rover Sport (2012), Rolls-Royce Phantom, Maserati Quattroporte (2013–), Dodge Charger V8 (2015-), Dodge Challenger V8 (2015-)] is the vehicle manufacturer written software programming that gives the 8HP70 is platform specific behavior and operating characteristics. Hence, some but not a lot, of complaints from the 5.7/6.4/3.0 crowd.
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  #696  
Old 10-23-2015, 09:09 PM
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Quote:
Originally Posted by 14SummitHemi View Post

EDIT: While I feel a German plant would win an auto build quality contest on average with a US plant for a whole lotta reasons....the Gray Court, SC ZF plant employs US workers.

The difference is not the workers, it is the design. The 8HP70 built in the US by ZF employing US workers has far fewer issues solely because it is physically not modified from the original design. The only difference between the 8HP70 that goes into our 5.7l/6.4l/3.0l Jeeps and the other vehicles [BMW 7 Series (F01), BMW X5 (E70), Dodge Durango V8, Iveco Daily, Ram 1500 V6, V8, & diesel, Range Rover Sport (2012), Rolls-Royce Phantom, Maserati Quattroporte (2013–), Dodge Charger V8 (2015-), Dodge Challenger V8 (2015-)] is the vehicle manufacturer written software programming that gives the 8HP70 is platform specific behavior and operating characteristics. Hence, some but not a lot, of complaints from the 5.7/6.4/3.0 crowd.
I agree and it was Chryslers mucking with the design on the V6 trans that has caused all the issues, 2.5 years later they still don't know what they are doing with it. That was what I meant by the key was that Chrysler had not touched the 8hp70 and why we have few issues regardless of what side of the ocean it's built.
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