Post by
Mr. Music »
https://forums.nicoclub.com/mr-music-u82550.html
Tue Jul 12, 2011 9:04 am
mattyfo0z,
The surge in my car, which is the 2.5 with the Jatco JF011E belt CVT (3.5's have the Jatco JF010E), happens between about 32-37 mph, more or less. It doesn't happen all the time, but it happens in light throttle conditions, as if maintaining a certain speed. It feels like the car is lugging, slightly jerking back and forth. It's not very severe, but imagine it as if you were moving your foot on and off the gas at a quick, constant rate.
So, what your experiencing isn't the CVT surge as far as I can tell. Just to be clear, when you accelerate from a stop, the engine gains some revs and then the car suddenly jerks into motion? Sounds like an issue with the torque converter to me, but I'm no expert and I don't fully know what's happening with your car.
Has anybody on here tried to get the surge issue resolved before this TSB? If so, what were your experiences? I tried resolving the issue soon after purchasing the car in late 2007 and well through 2008. At first, the dealer I purchased the car from just told me not to drive at the speed that the surge occurred after weeks of trying to figure it out. Obviously, that wasn't going to fix anything and that answer got me quite cross. After many phone calls with Nissan Consumer Affairs, I ended up taking the car to another dealership. With one of Nissan's engineers on the phone, I was told that this was a normal operation CVT. Basically, the transmission is unsure of whether or not to "change" into it's highest gear ratio, causing it to slightly fluctuate back and forth between gear ratios.
Normal or not, it's annoying, and I don't think it should be happening. Obviously, I'm not alone with that thought. I haven't had a chance to contact the dealership I want to take it to, but I still plan on posting back here with my experiences once I've spoken with someone at the dealership.