You mean replacing the Transmision or the TCM?

 

the TCM...but if you dont do that soon enough, the tranny will also go bad.

 

Ohhh I see! ... So what shop might do this fix? Do you think the dealer is the place to approch for this kind of problem?

 

There's a TSB for your problem, so perhaps you could go to the dealer.

 

order a new TCM from daveb and install yourself.
when i got the one for my 00, i paid around $400...nissan list price is over $700

 

if you want to go the dealership route...go to Jackie Cooper Nissan...solid dudes in there

 

I see! will definately keep this in mind! How hard is the install though?
lol I realy don't know much about tranny technology! I guess it's time to learn!

...So Jason you had the same problem with your 00 Max? Changed the TCM and it fixed your problem?

 

its easy Alex...the TCM is behind the headunit/climate control assembly

 

Hi, So you guys all know I just had this issue with my 2k. If you have a slip or long shift from 1-2 or 2-3 it is a know issue and needs the shift solenoids replaced which can be found for roughly 250-300 all over the net. And the sudden rev when changing gear is needing a new TCM which is about 450-550 depending on where you get them.

 

If neither the solenoids or TCM solve the problem and the fluid is red and doesn't smell burnt, the next step in the Nissan service manual is to swap out the valve body.

 

how did you change your solenoids??? Did some shop did it for your, did you take it to the dealer, or you did it your self???

now I have 2 things to think about what might be causing my slips/long shifts = solenoids, or the TCM. Now which one is it realy I wonder?

 

mine also slipps about 300rpm going from 2-3 under part throttle but its fine under full and w/ dr mod. mine actually had no 1 and R like a month ago and i had to push the car back to the spot but then when next time i started the car and i was in R for about 20 secs and all the sudden it catches R and since then i have my 1 and R back. i think 2-3 is the tcm problem but also think that there prolly is some thing in my tranny that came loose or just the pump is going bad but i haven't had problem w/ my 1 or R again and put about 500 miles so far. i'm going to do a drop the pan tomorrow and do an refill also clean the magnets and screen which is due anyway since its been 16K last time i did it.

 

I plan to order another TCM from daveb to see if it helps my flaring issue. Ive now noticed that it does do it when warm as well, but not if i manually shift from 2-3 with the gear selector. My question is, If i notice no difference with the new TCM, will daveb give a refund / partial refund? I just dont want to throw away $500 if my TCM is fine (and it some other problem with the tranny itself). Thanks guys

 

I'm starting to have tranny issues too. 02SE with 110K miles. Slips from 2-3 and when cold revs high at cruise as in the overdrive might not be working. When I turn it off and back on after warm up, the overdrive works. Once in a while I get the light flashing on the dash for about 10 seconds when I start it up in the morning. Its only ever first thing in the morning.

 

So did you order a new one? Did you already replaced your old TCM? If for example your old TCM was good and you didn't know and bought a new one from DaveB, I for example could buy your old one if it wasn't the problem with your TCM.
Let me know what you have so far.

 

I would start with replacing the fluid to amsoil atf, changing the filter and gasket and doing a full flush. get results, then try the Trans Computer module, then look into replacing the actual transmission. 70k miles is kind of a joke to replace a trans.

 

That's a good thing to do before spending $$$. But for some reason I don't think flushing, using new tranny oil, and new filter could change the problem that is being already caused by another problem ... but a good way to find out though.

 

I havent ordered a new tcm yet...im going to do a flush as soon as i get a chance (from the generic mercon III i have in there now) for some mobil 1 synthetic ATF, see if it makes a difference. If there is no difference, ill order the TCM. But i dont know, i see that the recall affected the 00/01 models but not the later models. Is this problem still known in the later years, but nissan never put up a TSB for it? Strange. Has anyone else here had the 2-3 spike fixed with a new TCM in a 02 or 03? Thanks for the input guys.

 

When doing a flush, which fluid are you guys using? Is there an org favorite? I can get Royal Purple at cost, is this recommended?

 

Bro I guess we're floating in the same boat here lol ...I don't want to spend $500 for TCM right away, I want to flush my tranny with something new like synthetic ATF and then see if I would need to buy TCM.
BTW some had to change their Tranny Solenoids in order to fix this problem some a new TCM... You just never know what exactly might be causing it, unless some pro will look at it and let you know what exactly is wrong with it.

 

well i flushed with mobil 1 syn atf, and it did nothing. Shifts are a tad bit smoother, but i still get the spike. Next ill try a new TCM i guess, although not at right at this moment. Where are the shift solenoids located in the tranny?

 

of course a flush wont fix an electrical problem with the TCM....

try not to listen to new people with no reputation that havent learned the specifics of our cars.

 

and for the record...if you ever have to change the tranny, it is only because you waiting too long to fix the problem (TCM)

 

can some1 please explain to me what transmission flaring is and what the symtoms are? like when u sifht from 2-3 what does the rpm do and such.

 

The problem seems to be a part throttle problem, the rpms jump during the shift instead of dropping immediately. Cold weather seems to make it worse. Usually starts with the 2-3 upshift.

 

so your saying the rpm jump but the car doesn't catch a gear and has no power until it catches?

 

here is what happens -

when TCM is fine -
the TCM gets thousands of signals a minute and compares the values to those stored. when all the requirments are met, it sends an electrical signal to the tranny to tell it to shift.

when TCM is bad -
the TCM has problem computing the data. the tranny is ready to shift and is waiting for the signal but the TCM is having problems. as a result...the RMPs stay high for a few seconds and sometimes even bounces off the ref limiter. the tranny needs to upshift. when it finally gets the signal, the shift is very abrupt and hard, sometimes squealing the tires. thats what wears the tranny out.

 

so as the rpm increase does the car strain to gain speed untill it shift?

 

the car gains speed just fine as you accelerate....until its time for the tranny to upshift...then its like it just pauses for a second

think abut it this way.....you are driving a car with an MT....RPMs go up and its time to upshift....you push in clutch but dont let off gas....you take a few seconds longer to upshift...you finally let the clutch out...not good for the tranny

 

so basically the trans and engien are disenged for a sec ?

 

replace the tranny fluid... make sure your car is warmed up... and dont drive your automatic like it's a manual all the time... only when your racing a g35 or something...

my car was doing the same thing... i was racing a gti and my car did exactly how you guys are describing it... the pausing... and all that funny stuff. i let her warm up and dont drive hard for no reason and no problems... im chaning my fluids next weekend.. oil tranny radiator.

oh yeah maintenance is the key to a healthy car just like it is to our health...
be good to your car and it will be good to you

 

completely pointless post with poor advice...and mention of road racing....

 

The TCM seems more and more the issue as u guys mention. I pulled the drop resistor the other day, and while my 1-2 shift was pretty harsh (which I expected), the 2-3 shift was smooth as butter and instant at 2500 rpm, 2700rpm (the areas where it usually flares). Im guessing that the TCM does not maintain sufficient line pressure in that scenario, and thus the 'lazy' shift. Does my reasoning sound logical?

 

 

how many people really keep tabs of maintenance....
how many people drive hard for no reason....

if your good to your car ...you should have no issues like this in the future...
and to mention not to drive hard like that and think the auto is a stick... it may be typical for you but there are people that need to be told that small detail is all...

 

TCMs go bad...thats why there is a TSB...has NOTHING to do with maintenance

 

manually up shifting and down shifting your auto has nothing to do with that then??
i mean it is one was of sending your tranny to poop town... but if not then i stand corrected

 

yes, manually shifting your auto and beating on it will cause it to go bad (ask sexyleo about that).

but you made it sound like you were discounting all of the experienced people recommending a new TCM based on the information provided

 

noooo nooo miscommunication there.. i shoulda been more clear in my post... i totally agree on you with the tcm... makes the most sense and is most probable. i was just saying that theres things you do and dont do for it 2 get there. and manually shifting and auto is an easy way of doing so. Neglect of care is another way as well... but since the problem is already occurred... a new tcm is the most logical step to be taken

 

beating on the tranny does nothing to the TCM...it just wears the tranny out.

the symptoms of a bad TCM and a tranny that was beaten are the same....but they arent the same thing