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Discussion Starter · #1 ·
So, I just looked at the 13086 NTB and man, this issue is a mess.

First, Nissan has now identified three different problems, that initially, were probably being lumped together as one issue due to similarity.

1. "Lugging or groan/drone at low speed"
2. Pressure Vibration
3. Lock Up Shock

The first issue is actually "normal to maximize fuel economy. Go figure.

The second can lead to CVT replacement and the third can lead to Torque Converter replacement. BUT, those replacements only occur after a maze of questions about build date, TCM reprogramming completion, timing of those actions, etc. And if you have to replace the Torque Converter, there are 4 different models of TC with 5 different scenarios that dictate whether the TC is actually replaced or not. (4 get the replacement, 1 does not)

Wow. No wonder it's taking them so long to figure this out.

My second CVT is on order based on 13086. Since the first CVT replacement (which was after the TCM reprogramming and the TC replacement) the judder has only returned twice but from what I read, if the judder happens, it means there is damage to the CVT. We'll see. I look forward to the day my car is not being ripped apart every two months.

I've heard that some people who have had 13086 completed have better fuel economy, that would be a welcome change for me as I'm not seeing the fuel economy as advertised.

Anyone else having their car diagnosed under 13086? Experience?
 

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Did you manage to find a copy of the TSB? I see the summary out on Nissan Tech Info site, but it looks like you have to purchase a subscription to read the full thing.

I'd love to understand what's going on behind the scenes to better direct my dealer to a repair.
 

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Did you manage to find a copy of the TSB? I see the summary out on Nissan Tech Info site, but it looks like you have to purchase a subscription to read the full thing.

I'd love to understand what's going on behind the scenes to better direct my dealer to a repair.
I have it, just private message me an email address and I will forward PDF.
 

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wonder what lock up shock is.
I interpret lock up shock as the torque converter meeting the mating surface to fast with not enough slip, and hence the judder/shudder. I think they thought that was the only cause and that the torque converter replacement would eliminate it. But some CVTs evidently have permanent damage to the hydraulic circuit other than the solenoid pack (because that is relatively easy and cheap to replace) that is severe enough to replace the CVT itself.
 

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I interpret lock up shock as the torque converter meeting the mating surface to fast with not enough slip, and hence the judder/shudder. I think they thought that was the only cause and that the torque converter replacement would eliminate it. But some CVTs evidently have permanent damage to the hydraulic circuit other than the solenoid pack (because that is relatively easy and cheap to replace) that is severe enough to replace the CVT itself.
I agree with your assessment.

I was reading over that PDF (thanks again, BTW...) and I found it interesting that they specifically mentioned this:

NOTE:
• Make sure the converter housing oil seal (front seal) is not damaged. If damaged, replace it.
Because that's exactly what they did to mine during the TC replacement!


I'm still on the fence about what to do. I haven't had the shudder very often since - maybe 2-3 times, mostly in very warm conditions. I do notice a bit of vibration (shudder) with the 4WD set to AUTO - and that is different from before the TC replacement, when being in 4WD was not noticeably different than being in 2WD.

I know this doesn't make a whole lot of sense, but I'm really wary of inheriting someone else's problem that is potentially more severe than mine, by replacing the CVT. I get that they're remanufactured to strict tolerances and may even be better than new, but it still makes me nervous.
 

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I know this doesn't make a whole lot of sense, but I'm really wary of inheriting someone else's problem that is potentially more severe than mine, by replacing the CVT. I get that they're remanufactured to strict tolerances and may even be better than new, but it still makes me nervous.

It is good to be wary. I would love to have my original CVT back. It only shuddered a few times per week. My "new" CVT shudders almost every day, some days multiple times per day.

We have an appt with a "Nissan Specialist" on Thursday that Nissan NA is flying in to look at our PF. I have lots and lots of questions for him. Hoping to better understand what Nissan's plan is after spending the day with him on Thursday.
 

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It is good to be wary. I would love to have my original CVT back. It only shuddered a few times per week. My "new" CVT shudders almost every day, some days multiple times per day.

We have an appt with a "Nissan Specialist" on Thursday that Nissan NA is flying in to look at our PF. I have lots and lots of questions for him. Hoping to better understand what Nissan's plan is after spending the day with him on Thursday.
Looking forward to what ever answers you're able to get from them, but even for that Nissan rep it's going to be hard for him to say what the outcome will be since he is likely an engineer that's going to investigate and go from their,
 

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lock up shock seems to produce a similar effect to clutch slip or the slip between first and second my old ranger used to have. revs go but the driveline doesn't match so when it does kick in SHUDDAAA.

They can fly in whoever they want but usually the problem just gets prolonged when they bring in the specialists...
 

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Wow they are actually flying somebody in o have a look. Lucky you this might be the breakthrough to getting this problem fixed.
They're flying in the specialist because I have filed the lemon law on my PF in the state of Georgia. By law, I have to give them one more chance to fix my PF before I file the next paperwork for them to buy the car back, or it is on the way to be officially labelled a lemon. We'll see what happens with the guy on Thursday. My dealership told me that they could not fix my PF - but this was before TSB 13086 dropped.
 

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They can fly in whoever they want but usually the problem just gets prolonged when they bring in the specialists...

Luckily for me, there is a limit to how long the final fix can take. The lemon laws are very clear on this matter. Nissan can't wait to fix my PF until the new parts come in, or they finally figure out what the problem is.
 

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Luckily for me, there is a limit to how long the final fix can take. The lemon laws are very clear on this matter. Nissan can't wait to fix my PF until the new parts come in, or they finally figure out what the problem is.

From what you just said it actually sounds unlucky for you. Think about it, especially the last part. Nissan is not able to properly fix your Pathfinder becasue they are constrained by Lemon Laws. So they just keep throwing different things at it, they arent able to spend a serious chunk of time or as you said wait for correct parts because of the finite frame. As a business they would rather have you coming back then have to cough up another vehicle or take yours back...

Like I said the problem will continue to be prolonged because of Lemon Laws...
 

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Discussion Starter · #16 ·
FYI....Got a call from Nissan Consumer Affairs and they still have NO ETA on the parts necessary to do the complete transmission and TC replacement from NTB13086.

For all of you taking in your cars and getting a CVT replacement, you should be aware that you are NOT getting the redesigned CVT. You might be getting one of the remanufactured CVTs that the other NTB's called for.
 

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From what you just said it actually sounds unlucky for you. Think about it, especially the last part. Nissan is not able to properly fix your Pathfinder becasue they are constrained by Lemon Laws. So they just keep throwing different things at it, they arent able to spend a serious chunk of time or as you said wait for correct parts because of the finite frame. As a business they would rather have you coming back then have to cough up another vehicle or take yours back...

Like I said the problem will continue to be prolonged because of Lemon Laws...
At this point, I don't want Nissan to fix my PF, I want Nissan to take it back. Nissan has had 9 months and 5 separate attempts to properly fix my PF - it has been shuddering since Jan 19th, and I took it in for it's first shudder fix on Jan 31st. Since they weren't able to fix it on it's final repair attempt, I have just filed the paperwork to force them to take it back. It is a happy day indeed in our household.
 

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At this point, I don't want Nissan to fix my PF, I want Nissan to take it back. Nissan has had 9 months and 5 separate attempts to properly fix my PF - it has been shuddering since Jan 19th, and I took it in for it's first shudder fix on Jan 31st. Since they weren't able to fix it on it's final repair attempt, I have just filed the paperwork to force them to take it back. It is a happy day indeed in our household.
Glad you have some to hold on to and show them. Let us know if it goes through which it should right.
 

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At this point, I don't want Nissan to fix my PF, I want Nissan to take it back. Nissan has had 9 months and 5 separate attempts to properly fix my PF - it has been shuddering since Jan 19th, and I took it in for it's first shudder fix on Jan 31st. Since they weren't able to fix it on it's final repair attempt, I have just filed the paperwork to force them to take it back. It is a happy day indeed in our household.
good job, hopefully you get a replacement vehicle, the owe you it. They really need to be better with getting cars they cant fix out of the hands of customers, it just kills their reputation.
 

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good job, hopefully you get a replacement vehicle, the owe you it. They really need to be better with getting cars they cant fix out of the hands of customers, it just kills their reputation.
I will not be getting a replacement vehicle - you could not pay me to take another PF - I am requesting a buyback. With the way that Nissan is clamping down on the shuddering repairs, there is no way that I would start the whole process over again. I feel sorry for the people who are just now starting the lemon law process - it appears that Nissan is trying to make it an uphill battle now.
 
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