I've lurked the site for a long time, as this place is CHOCKED FULL of information that has saved me time, money, and loads of cursing!
I have a few tips I've discovered from my CVT trial-and-errors, as well as requests from anyone that can give better insight at my current dilemma.
The vehicle:
2012 Nissan Versa SL equipped with the Jatco re0f11a CVT (89k miles)
The backstory (quick version):
-Naturally I am outside of warranty due to mileage (2012+ if I'm not mistaken, the warranty was not extended). We experienced the same things everyone else here has. ("Searching for proper ratio while climbing hills/overhearing/fail-safe embarrassing moments in traffic)
-We have never had a CEL show up. Dealership could not duplicate, but assured us that levels are within normal standards (at around 75k miles)
-One fateful day after a trip in the mountains (Georgia mid February this year) it got so bad that it would endlessly go in failsafe and constantly redline. Luckily we were a couple miles from home.
-Got it towed to Dealership for the TCM reprogramming recall or whatever it was called.
-"Your transmission is shot."
-Told him he's very observant considering the fact that he had his team push it into the stall. That I've done hours of researching forums. Seems par for the course. Just do the TCM thing.
And so the versa sat for a couple months. Up until last week when I decided ahhh what the heck. No voided warranty to tie me down, it's time to tinker.
I changed the fluid, which was darker than the coffee I drink every morning.
I also removed the fluid pan and valve body (which was much easier than I thought. Only a very small amount of shavings on the magnets in the oil pan, but none in my coffee drain pan. Filled with the proper fluid to the proper level (with 2012 versas you have to pump from the pan, so I rigged one up. There is an overfill tube in the plug used for levels).
Car shifts beautifully. Like new.
Until I drive for longer than 30 mins (all hills here). The old symptoms come back, but much less drastic. No codes stored. Engine temp is normal, but it SEEMS trans is overheating. I just installed this app after digging in unrelated forums, which is incredible bc it deals with all things Nissan CVT:
https://play.google.com/store/apps/deta ... z50.cvtz50
So I'm going to try it out when I drive the versa to work in a few hours.
At work I'm going to check my beehive oil cooler lines to see what the flow is like. Has anyone attempted this? I'm not sure what would be the proper flow, or what the best method going about checking is.
All this said to shed light on the fact that just bc they say it's shot, doesn't mean it is. If the whole transmission needs to be scrapped, then why does it run fine now until the fluid temp gets above the threshold activating limp mode? Pay Nissan $4000 MORE on a vehicle that isn't even worth $3500? Hahahahahahahahaha.
FYI if you search new parts for the TRANSMISSION by its model,they actually aren't too pricey. They aren't as scarce as they once were.
Again, my situation might be different, since there's no hope for my warranty.
I GLADLY welcome advice regarding overheating. The versa is a small vehicle, so although an auxiliary cooler might help, it seems the beehive SHOULD be enough, unless it's super clogged. Btw I have the 2 in 2 out coolant/trans fluid port oil cooler.
And feel free to relocate my comment if you feel it doesn't belong here. I just feel my issue is a CVT general issue, especially since overheating is an issue across all makes with CVTs.
Thanks for your time/advice!