I've been thinking about this alot and I am a little more than worried about it.

What I'd like to know is how long do you think the early Y2K transmissions will last? Since they were the earliest they had the worst slippage they would have the worst wear and damage.

Also what kind of damage do you thing the slippage and the resulting slam shifts caused?

I'm thinking that if it's just the clutches that got worn out/ruined and the transmission eventually starts slipping under normal driving or you cant's stay in a certain gear anymore you can have the transmission rebuilt and new clutches would fix the problem. But if there is planetary gear damage then a rebuild wouldn't help and you would pretty much need all new internals (a new transmission)

If either of these scenarios happen, does anyone know how much they would cost to fix? Also is there a way to tell when a transmission starts failing if it's just clutches or if you have gear damage without disassembling the transmision?

Thanks in advance for all your input.

 

I think, that in my particular case nothing bad had happened before I got TSBs done. When I was changing my ATF in favour of Redline I didn't notice any remainings in the old one. Fluid looked pretty clean and clear. If something was happening - I'd notice the difference since I pumped out most of my old ATF. I know, that they replaced about half of the ATF volume while changing VB according to second TSB but it should be still something left. There was nothing .

my 2c, Mike.

 

Well, I guess longevity depends on each individual tranny. Some have had theirs replaced very early (no modifications done to their car), but others still have the original tranny.

I suggest getting your solenoid and TCM fixed (see TSB thread). If you think that's not enough, get a valvebody recalibration and tranny cooler. The only downside is that the VB will void your tranny warranty.

I had the VB since around 13K and the supercharger since around 42K. So far I haven't had any problems with the tranny at 49K.

 

I'm planning on getting the Solenoid fix soon, I had the old TCM TSB done about a year ago.

Can you give me some advice on the second part of my question: after the solenoid TSB is done how would I tell if I'm having transmission problems and how bad they are (tranny rebuildable/non-rebuildable)

Also, I'm at 40K miles now so I assume if I get the solenoids fixed next month any tranny problems I will have will be post 60K warrany so I will have to pay for repairs.

Thanks

 

the new solenoids will fix the problems for sure... the shifts will become quick and firm. You can tell if the tranny still slips though. If you experience a delay between shifts where the revs keep rising throughout the shift, then the tranny is slipping.

 

I agree about the slippage present in the Maxima's tranny. This is done to provide smooth shifts. I feel the most slippage is found in American cars and they do have some of the most seamless shifting in the business. I really feel this will not cause premature failure as engineers had to balance durability and drivability. There are plenty of 4th gens out there with 150k on original trannys. It is important to change your fluid as well as checking it every 2-3 weeks. I've been changing my fluid every 15k and the car now has 100k on it. The transmission work fine and the fluid is always clean!

 

Yeah, what he said.

 

Thanks for the info everyone, hopefuly after I have the solenoid and pinging TSBs done my car will have a long and major problem free life.