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

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