anyone notice harsh shifts? or jerking? i have 30k on my car and my trannys starting to feel less smooth and slower shifts. i havnt had a tranny flush yet. ill be getting one this week and see if its still the same? anyone have the same problem? it seems to kick every time i shift in manual mode. im in tiptronic 90% of the time i drive. could that be the reason?

 

I have around 80k on my car and I dont seem to notice any problems, except once in a blue moon. You might wanna have your tranny checked out. A valve body upgrade might help your problem. I have heard that using tiptronic a lot is hard on the tranny but I am not sure if that is really causing your problem? See what happens when you flush you tranny fluild, if that doesnt do it PM me if u want and I will talk to a guy at my shop and see what he has to say (car expert).

Does it tend to do it after you have been driving a while or even when the engine is cold? Heat is a big enemy to auto trannys.

 

Mine's been shifting harshly in manumatic in lower gears since day 1.

As for tranny lag, that's controlled by the ECU mostly - try disconnecting the battery and you should notice it go away (unfortunately, it will come back w/i a week or two unless you flog the car every second of the day ) ..... stupid electronics, last time I own a japanese car

 

My was a little hard, so I flushed the trans and refilled. That helped a lot. Quick starts will burn the fluid quicker which results in harder shifts because the fluid has broken down. I changed mine about 5,000 miles ago, I had 35,000 miles on it and it need it. If the fluid is brown and smells burned, time to change. The shifts smoothed out even more when I installed the grounding kit.

 

ill be getting the tranny flush this week. if it dosent help outill probably just go to the dealer and have them replace my tranny. what exactly does a valve body upgrade do? ive heard of it, but not too sure about it

 

i get hard shifts on my lower gears but i like it. only 39k miles on the car but i drive it rough in tiptronic. sure the ecu has adjusted to my style somewhat. havent flushed my tranny yet though...

 

i drive hard also..is it normal for it to shift harsh? becasue i dont remeber it shifting harsh when i first got the car

 

I doubt the dealer will replace your tranny only because of harsh shifts. That seems to be a characteristic of our transmissions.

I do not own a 5AT, I have a 6MT. I always thought the 5AT's were smoother and less notchy than our 6MT's. Guess not...

I'll be switching to Royal Purple 75W90 for the tranny/differential and RP 5w30 for the engine oil.

Hopefully that helps.

PS. I only have 8K miles on my 06 6MT. But those 8K's were driven hard... VERY hard

.

 

lol ya...you went to the track a loott lol. its worth it though!

 

!!!




No dealer would replace your tranny just because of rough shifting btw

 

If longevity after 70k warranty is a concern the earlier you start ATF replacement the better.............aggressive driving needs at least an every 30k replacement.........or you'll start seeing problems after 100k.

Remember AT cost $4,000+

 

WHAT??? Jesus man that's insane! Dealer price including taxes install I hope, but even so!

 

I hope you have better luck with it than I did. My '05 6MT didn't like it all. I changed fluid as I was starting to get some notchiness/catching going into different gears. Nothing close to a grind, but not as smooth as it was. Pretty much seemed like the OEM fluid needed a change.

The RP resulted in a bit more notchiness/catching. It was noticeable enough, as it was worse than before. After one day, I took it to the local Nissan dealership and had them change it to the OEM fluid. Smooth as new, for a few months and now it's getting back to where it was.

FWIW, I don't think the OEM fluid is up to the job (as it stops working so good in such a short amount of time), however, my experience with the RP was worse still.

 

so im right on time? im about to hit 30k. im at 29 right now.. ill get a tranny flush sometime this week. and ill let you guys know how it goes

 

i get the hard shifts in manual mode too especially from 2nd to 3rd but only sometimes. It's weird like if i shift at a certain point and let off the gas it shifts really hard. It has done it from day one from what i can remember and I bought it new. anyone else have that problem?