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  #41  
Old 04-06-2017, 11:37 PM
nedm1989 nedm1989 is offline
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Did you end up using Matic S? I've not got mine back on the road and found the oil change did not resolve the surging but it shifts much more positive now, the oil was terrible. I'll be changing it now every 40000-50000km's. All thought my mesh filter was completely clean and clear and looking back at it now I could have saved myself alot of time and money by just flushing it but wouldn't have known that without taking the pan off.
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  #42  
Old 05-06-2017, 01:18 AM
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the_bluester the_bluester is online now
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EDIT: I am referring back to the earliest posts on here. The auto seeming to lock up or unlock just either side of 60KMH is pretty much normal. The tiniest sniff over 60kmh puts it in the next gear, dropping below 60 drops it back again, exactly the same in my wifes 550. I can't recall which gear it is, but it would be easy enough to tell. Pop it into manual mode and at 55kmh or so, ask for upshifts until it wont go any higher, go up to just over 60 and it will then give you the next gear.

Silly programming IMO, bang on a common as muck speed limit is a stupid point to program a shift. And it needs more hysteresis, if it shifted up at 65 and back down again at 55 it would be much less intrusive.

it is interesting to see a few people noting them being slow into gear on some cold starts, my wifes has been like that since new, but given it did it maybe once in 20 cold starts I never even bothered saying anything to the dealers about it while it was in warranty.

Last edited by the_bluester; 05-06-2017 at 02:28 AM.
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  #43  
Old 05-06-2017, 08:02 AM
nedm1989 nedm1989 is offline
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It's not a shift thought its only the change of 250rpm which is only slight but annoying plus it can't be doing any favors for the gearbox.
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  #44  
Old 05-06-2017, 10:27 AM
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I would have to drive mine again to re check but it feels like a gear not a torque converter lock. With 7 of the buggers the RPM change is not very great. As far as I know the TC locks up very early on in the piece.

Either way what I said stands, it would be far better with more hysteresis in it so that whiecever it is doing stayed done for a decent period.
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  #45  
Old 13-07-2017, 03:20 PM
Kakol junior Kakol junior is offline
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Hi guys here's a quick video in manual mode ,not the best but yer https://youtu.be/QvdGF8kznd8
Hey nedm1989 see that fella on your post point it towards the tccs( torque converter control solenoid) ? Iv actually considerd changing that out,if I can find one I will change it out and repost..just need to find one...
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  #46  
Old 16-07-2017, 04:46 AM
Kakol junior Kakol junior is offline
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Iv come to a conclusion that it's a softwareware glitch from the ecm to the torque converter,next is to find a way for a update,or tcm remap...��

Last edited by Kakol junior; 16-07-2017 at 07:37 AM.
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  #47  
Old 16-07-2017, 11:30 AM
nedm1989 nedm1989 is offline
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I keep hearing conflicting stories about people tuning the gearboxes in these things, I think I remember someone on the navara 550 facebook page saying something about finding a place but not sure where they got up to, I find it hard to believe they'll tune a 350&370z but wont touch the 550s box even thought its the same thing but with a transfer case stuck on the end.

I've been trying to find something that makes sense about it all as even though it seems ok and I found nothing alarming in my atf when i serviced it, I will say I did mine at 80000k and imagine that has been the first time its been done, but I'll be doing it again in 40000ks.
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