7 Speed Auto Trans Fluid Change

jchammond

In the process of flushing mine now,,,the only special tool i bought was a new 1gal. chemical and bleach sprayer from Walmart (14$)
the system holds about 10qts..and it only drains about 3 at a time...so i plan to repeat this process 3/4 times-till fluid is clean.
1st drain-remove 19mm or 3/4 plug at L/R of trans..and let drain in suitable container.
then remove 5mm allen overfill plug at L/F.
i have car on ramps at this time-but on my last one,car needs to be level.
fluid that came out on first drain looked like coffee (very dark) but didn't smell burn't.
i put 3.5 quarts of s-matic approved fluid in sprayer (Valvoline LV Multi $16.97 gal.) and connected the locking sprayer nozzle to the hose....pumped 15-20 times & held over overfill hole & squeezed fluid into trans.
only had to stop once to repump sprayer.
installed 5mm allen plug & started enginei wanted a complete flush and don't have a fluid exchange machine...so i drove car about 5 miles in manual mode..making sure i used every gear...no hard accelerating.
car is back on ramps for second drain and fill.
on last one,,,very important.......car needs to be level & after filling with approx. 3.5qts of fluid...let vehicle warm till pan is lightly warm to back of hand...around 105 degrees.
(note-engine temp will go to about normal and oil temp will come up to around 160 before trans. temp gets this high)
while car is level/remove 5mm allen overfill plug & let excess drain into container,till it comes to a drip & install and tighten plug....finished.
manual says to replace overfill plug? not sure why.
i spent about 70-75$,,,including chemical sprayer....i was impressed how it pushed that tranny fluid out of that container...didn't take long.
i will repost final results & would add photo's if i knew how...new at this site.
hope this helps people..& dealerships around here get 200$ to do this and dont drive car inbetween..they just flush a couple times///with a bulk approved fluid (they don't even use genuine Nissan S-Matic) imagine that.
have a nice day...rain here.
2011' base,touring,,,best qtr. mile track times is 13.139@104.89mph
1/8th was 8.451@85.74mph 60' was 1.955 bone stock,1/4 tank fuel + me and helmet (300 lbs.)

JARblue

Always remove the fill plug FIRST. You're screwed if you start draining the oil and then find you can't get the fill plug off cause some numbnuts at the factory or dealer decided it needed to be torqued to 200 ft-lbs

__________________

ZKraken22

I changed mine at 60k think that's what the manual said. Cost me 120 bucks.

__________________
Litespeed Racing Titanium Cold Air intake// GT Haus Axle// GarageLine combo// Nismo sway bars// Nismo Spoiler // Berk TP's

jchammond

ok-completed transmission service...didn't mention to remove overfill plug first(in previous post) but i had mine already loose because i ck'd the fluid level with the car straight to see where it was before i started.....and it was about 1 pt. low.
When i drained trans while on ramps-5 1/2 qts. came out...good deal..so 5 1/2 went back in before 2nd drive.
parked the car level-so that i could acess both plugs and let cool.

Drained fluid a third time & about 3 1/2 qts. came out and fluid was looking good.
filled with 3 1/2 qts. & started engine...shift trans. through different gears & went underneath.
pan was still cool,so i knew fluid would ck. low.......allowed fluid to warm some & remove overfill & let excess come out till started to drip & installed & torqued plug.
trans temp was about 105*
car drives great & ended up putting in a pint more fluid than what came out.
will ck again at next oil change-but feels great/no problems with other fluid-just 50k miles on it & it looked like coffee.

JARblue

__________________

EVOHUNTER

I disagree, Any basic scanner can give you trans temp. Gynesis, versus etc.. You don't need a CONSULT by any means.


The scanner is used to make sure the fluid is warm, and has expanded.
Once the operating temp is reached, the bolt can be removed.

__________________

SouthArk370Z

Excellent! Can you provide the appropriate Mode/PIDs?

__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

EVOHUNTER

select car >ObdII> Transmission/drivetrain > live data stream > scroll down to trans temp while car is running.

?? im not sure if this is what your asking for??

__________________

conmam

Are you 100% sure about this ? I will be buying a generic Craftsman OBD tool soon ( around $300 ). The reason I am asking is because the Nissan AT transmission fluid temp is not a generic OBD II parameter, it is more proprietary ( just like engine oil temperature ). Therefore, I don't know if a generic scanner would read out individual manufacture's unique data....

EVOHUNTER

Im not 100% sure about this one, but it says it covers Drivetrain/abs.

But i can't find any info on the real time data stream.

If your buying it for only the trans temp in data stream, and it doesn't have it.
return it. Say you weren't happy with the product.

My napa genesis has this feature, its a little bit more $$ than what your looking at. Doesn't cypher have a live data stream of the transtemp?

__________________

conmam

No. Unfortunately Cipher live data stream dies not have this parameter

jchammond

Yep; Genesis has it, on hot days it doesn't take long to get Trans. Temp up to ck degrees...I see optimal 104* with a range of 95-113* .. So if it's over 95 outside & your car is heat soaked/ you're practically there....I may be wrong/ but I thought I seen 2 different temperature sensors on genesis tool? But no problems with mine so far.


Sent from my iPhone using Tapatalk

__________________
MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html

BoneZ

<-------Very interested in rolling my own here if I can. I thought you HAD to take it to the dealer for some reason. It would be a great $$$ savings if I didn't.

jchammond

you can do it!

__________________
MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html

BoneZ

So just like my manuals (remember this is my first auto) you are filled properly when it drains from the overflow hole?

__________________