Ok my transmission went out on my 2014 maxima sv and I just got it out the shop with a new one. Nissan didn’t put the transmission in , the shop down the road from my house did . When they called and said it was done so I went and paid 5476.65 to get it and when I drove it off I noticed that it it feels sluggish Now instead of a 3.5 it feels like it’s a 1.5 . So I brought it back and told him what was going on and that the rpm’s are running higher than usual and he basically said it needed to be re programmed . They never brought it to Nissan get programmed because the place the shop ordered it from said they shipped it somewhat programmed. Anyways I brought it to Nissan to get programmed and it still feels exactly the same .

does a transmission act like this before it’s broke in ? Or did they not do something right ?

 

I’m literally waiting for my maxima to be done from a cvt replacement through my extended warranty. If I were you I would definitely take it back to the original shop you mentioned and make a fuss over them not programming the transmission after you paid over 5 bands for a problem they obviously made kinda worse

 

It’s been a little while since new trans been put in but it seems to be running better now. After I took the car and got programmed (which I don’t even think I needed to spend that extra 300 to program it ) and everything The problem was when they took everything apart they ****ed up the camshaft sensor . With that sensor being messed up it made my car run like **** . But they fixed it and it started running better. But now it seems like other ****s going out . Other day got a winding noise from power steering so it’s about to go out . 02 sensor is bad so it’s making the car run and idol a little rough but other than that the car runs good.

 

Do NOT. Drive your Maxima again
until you have an external Transmission
cooler installed on your car.

Nissan issued a TSB strongly recommending owners of Maxima 2009-2014.

Their explanation is. Nissan Maxima engineers did not anticipate the high temperatures that the CVT transmissions
would generate.

So. There you have it.


Ii had a Hayden 679 heavy duty transmission cooler installed on
my 2014 Maxima.

It has made a world of difference.
Drives Great.

Read up. Do the same for your Maxima.
Or you will be replacing your CVT SOON

 

Can you demonstrate how you installed your new trans cooler? Like where did you mount it and how, and is it inline with the cooler in your radiator or separated? I'm thinking of installing one on my 2010, and if appreciate any guidance.

 

​​The transmission cooler I installed on my 2014 Maxima is a Hayden 679 heavy duty
part. It installs on the front of A/C condenser. The block trans cooler is internal inside the transmission housing.

Nissan publicly acknowledged that the factory transmission cooling would not work for the pairing of the 3.5L V6 with a CVT..

 

@Ccronkhite, A good friend of mine was a master tech at Nissan before opening his own shop. He replaced my 2014 CVT and told me at the start it would have to be brought to a Nissan shop to be programmed. The Nissan CONSULT-III Plus diagnostic tool, along with its associated interface and software is propritary. This tool allows access to the Nissan Technical Information System (NTIS) for reprogramming files. There is an aftermarket device, a J2534 pass-thru device that alows access to the system when using aftermarket scan tools that support Nissan's J2534 interface. Like you, when I first drove mine after replacinig the CVT, it too felt a little sluggish because there is a break-in period. I followed the instructions and within a coule of days it settled in and drives perfectly. A breakin period is a physical occurrance that happens. The same is true for new cars, engines, brakes etc.

 

Did you not already have a trans cooler built in to your radiator? And if so did you leave that connected along with your Hayden cooler, or did you "delete" the connection to your radiator? My radiator has some area on the passenger for the trans cooler built into it, but now I can't remember if it was like that stock, since I had replaced my radiator some years ago.

 

The stock transmission cooler strategy that Nissan provided for the 2009 -2014
does not work Period

Nissan has publicly admitted that .

So. Do what you do.
I'm out.

 

Please share the TSB# or any official statement.

 

I read the TSB I came across approx. 6 mo. But. I didn't save it locally on my device

So... If you want that official Nissan Doc .
You'll have to track it down yourself.

.

 

and how did you mount your Hayden 679 in place? did you drill holes into your chassis? and for oil flow, did you take the oil hose from the outer filter and lead it directly to your cooler, or did you leave the stock oil cooler in the radiator looped in?

 

The mechanic that I hired mounted the Transmission cooler to the front of the A/C condenser and left the continuity of the Transmission fluid I/O lines intact

 

yeah i checked 2 sources i have and couldnt find anything about it. im suspecting it was an opinion piece.

though it is a good idea it should be in line BEFORE the radiator cooler as it will help regulate fluid temp. im not sure if the CVT has a trans fluid thermostat

 

[QUOTE=slvr2KSE5;9263250]yeah i checked 2 sources i have and couldnt find anything about it. im suspecting it was an opinion piece.

though it is a good idea it should be in line BEFORE the radiator cooler as it will help regulate fluid temp. im not sure if the CVT has a trans fluid thermostat[/QUOTE

Definitely not an opinion piece.
The TSB is real, I read it. There is obviously an engineering problem with the CVT that is installed in the 2009-2014 Nissan Maxima. The recommended solution
from Nissan is install an external Transmission cooler.

But. It's not my job to Convince anyone. You believe what ever works for you.
]

 

2010 maxima

Automatic transmission (9)
NTB13-027d network diagnosis flow chart
NTB16-109c misdiagnosis of noise
NTB18-069 data collection
NTB14-057a fluid leak diagnosis
TT004-13 gates CVT belt installation
NTB12-068 CVT fluid information (use of blue vs green)
NTB12-020 vibration worksheet
1TO21 consult-iii plus programming
NTB11-043 diagnosis of p0725 and p1722

cooling system (3)
NTB14-057a fluid leak diagnosis
TT002-13 cooling system debris and corrosion
NTB09-040a new long life blue coolant

transmission control systems (8)
NTB13-027d network diagnosis flow chart
NTB10-066c network diagnosis
NTB18-069 data collection
1TO21 consult-iii plus programming
NTB11-043 diagnosis of p0725 and p1722
1SH2 consult-iii tcm reprogramming
NTB10-028 p0740/p1777
NTB09-138 booming noise or vibration

none of them refer to adding an additional cooler. i read every one. IF nissan released a TSB for adding a cooler there would also be an associated parts kit. the first 10 years i spent as a tech were with nissan and ford. no manufacturer will say add a cooler but source it yourself. they will supply a kit to do so.

 

Dude. Do whatever works for you.
Is any part of your verbiage supposed to mean to mean something to me.
Rhetorical question. The ANSWER is
NO.

I'm not responding any further.

 

Precisely. I could cite two examples: NTB13-095 for Sentra 2007-2012; and NTB14-002d for Rogue 2008-2013.

 

yes. it educates others to not listen to you.


have a great day cupcake.

 

Take a chill pill. Or smoke a Doobie.

 

Confirmed.

 

Big Yawn......

 

I unfortunately did undertake the task of adding a trans cooler, as i think either my cvt or my torque converter have been acting strange lately. It didnt help my specific problem (where i feel gear changes while going from idle to speed even though i know my cvt doesnt have gears), but ill keep it on since i live in south florida and we dont have much of a winter. Mr Silver, thank you for gathering those TSBs, i too couldnt find anything regarding trans temps either, but this guy Ghozt on these forums found a nissan stock cooler specific to the Middle Eastern markets a while back, and he installed it in his Maxima so as to turbo it. Mr Maxipirest, thank you for suggesting the Hayden 679, its what i installed as well yesterday all afternoon.
Now please, theres no need to attack each others credibility; if you arent actively seeking help or seeking to help, you can always just close the page. That being said, if anyone has other suggestions please feel free to respond or message me.