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ZF 6HP26 trouble-shooting

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  #1  
Old 12-13-2009, 11:08 AM
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Default ZF 6HP26 trouble-shooting

Shamelessly grabbed from the UK jag forum, itself grabbed from, oh you get the idea:
http://rangerovers.net/forum/download/file.php?id=1415
 
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Old 12-13-2009, 11:59 AM
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thank you, should come in handy.

first time i see the mention of "load reversal clunk" that i've had since day one, but no remedy for it.
 
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Old 12-13-2009, 12:22 PM
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I have a few of those issues that are mentioned...thank you so much for posting!!
Why are there so many issues with this tranny? Is it junk?
 
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Old 12-13-2009, 01:48 PM
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I don't think the ZF transmission is "junk" at all. Look at the number of high-dollar vehicles from well-respected premium manufacturers that utilize it. I believe that the ZF's overall design complexity contributes to its reported problems, as does its adaptive learning feature. Put two very different driving styles behind the wheel of this transmission on a regular basis and you often wind up with a very confused automobile....

Simpler, more traditional automatic transmissions are often the best in terms of durability and performance. My 1999 Dodge Ram 5.9-litre V8 pickup truck has one of the most bulletproof transmissions I've owned in more than 40 years of driving. The truck will be 11 years old in February, it has not quite 58,000 miles on it, it still has its original factory fill of Chrysler ATF +3 fluid in it, and that transmission still shifts just as smoothly as it did when the truck was brand new. That four-speed transmission design is simple, elegant, powerful, smooth, and durable. Plus, it runs transmission fluid that costs less than $5 per quart, not $50 a litre or more for the Shell mineral oil required for our ZF transmissions. And my truck's transmission never gets confused based upon who's driving....
 

Last edited by Jon89; 12-13-2009 at 01:56 PM.
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Old 12-13-2009, 05:16 PM
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Originally Posted by Jon89
I don't think the ZF transmission is "junk" at all. Look at the number of high-dollar vehicles from well-respected premium manufacturers that utilize it. I believe that the ZF's overall design complexity contributes to its reported problems, as does its adaptive learning feature. Put two very different driving styles behind the wheel of this transmission on a regular basis and you often wind up with a very confused automobile....

Simpler, more traditional automatic transmissions are often the best in terms of durability and performance. My 1999 Dodge Ram 5.9-litre V8 pickup truck has one of the most bulletproof transmissions I've owned in more than 40 years of driving. The truck will be 11 years old in February, it has not quite 58,000 miles on it, it still has its original factory fill of Chrysler ATF +3 fluid in it, and that transmission still shifts just as smoothly as it did when the truck was brand new. That four-speed transmission design is simple, elegant, powerful, smooth, and durable. Plus, it runs transmission fluid that costs less than $5 per quart, not $50 a litre or more for the Shell mineral oil required for our ZF transmissions. And my truck's transmission never gets confused based upon who's driving....
$50 a liter???? THAT IS INSANE!!!!!
lol....gets confused based upon who's driving....that made me laugh....so true....
 
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Old 12-14-2009, 08:57 AM
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Be aware you can get the correct Pentosin fluid for about $16-$18 per Liter. The dealer is where you will find the $50-$80 per liter price.
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Old 12-14-2009, 09:45 AM
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Pentosin fluid is not equivalent to the Shell mineral oil product. It may function adequately in the ZF in place of mineral oil, but if your S-Type is still under the factory warranty I would bet that the use of Pentosin fluid would void your warranty if your transmission fails....
 
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Old 12-14-2009, 10:47 AM
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Pentosin is a 100% synthetic fluid. The Shell M1375.4 is a mineral oil based fluid. See this very informative thread. It really lays out the transmission fluid options and facts. I will be changing the fluid in my 2005 STR. I still do not believe in "Lifetime" transmission fluid. At least my definition of lifetime!!!

https://www.jaguarforums.com/forum/s...ead.php?t=9932
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