I just took my 04' G35 Sedan in for a oil change and I mentioned to the service rep (MotorWerks - Barrington) that I'm experiencing a slight glitch when I'm accelerating past 40mph. It kinda feels like someone bumped the back of my car.

The rep tells me that this is a know issue and that Infiniti is working on a solution. Can anyone confirm this? Is anyone else having the some problem.

2004 Infinity G35 (Garnet Fire)
2000 Audi TT Quattro

 

Same here. Almost as if it tries to downshift but than decides not to. I noticed it a couple of times but people who were with me in the car didn't feel anything. This is 5AT, right ?


***04 G35s 5AT/Sport***
***04 Volvo XC90 T6***

 

I have noticed that a few times myself. I wasn't concerned about it, but I will mention it on my next visit!


Brilliant Silver/Graphite/Chrome Wheels '04 Sedan/5AT

 

The first question that I was asked at the dealership was "Can you reproduce it?" I had no other comments since it has been happning at most once a month.



***04 G35s 5AT/Sport***
***04 Volvo XC90 T6***

 

Well, to tell you the truth, I thought maybe it had something to do with the VDC, I seem to notice it at about the same places in the road. I think it would be more due to a computer thing if anything, more than a mechanical problem. I don't even think mine has done it once a month, it's very rare.


Brilliant Silver/Graphite/Chrome Wheels '04 Sedan/5AT

 

I agree. I'm very curious as to how VDC will react to stickier tires. Sport Goodyears are not as good after 9k miles. And I'm not worried about transmition being a mechanical problem. I have 91k more miles to figure it out

***04 G35s 5AT/Sport***
***04 Volvo XC90 T6***

 

Yes I have experienced it too. Like a small bump and before you know it, its gone.
Only remember it maybe 3-4 times in last 3 months. Almost impossible to produce.

Typically happens when you are cruising around 40mps or so.


If anyone finds more on it please enlighten us all. Seems like a bug in the software like ther is loss of communication and its back before you know it.

2003 G35 Black Sedan

 

With my '03 5A/T sedan it is like it slips out of gear for just a second - and then right back in. I hate it. I also get a pissy transmission shudder when accel 2/3 to WOT on the second to third gear change. I report it every time I take my G in - they always drive it and say nothing is wrong. Overall I am not as pleased with this car as I had hoped to be.