flushing transmition will mess up tranny?
Thread Starter
Senior Member
Joined: Feb 2007
Posts: 214
From: Louisville, KY
flushing transmition will mess up tranny?
ok i heard that if i flush the transmition fulid it'll mess up the transmition and cause it to leak, because i have 150,000 miles on there! is that true and has any one flushed theirs before with any problems?
nonesense.How will flushing cause it to leak. I have heard that if the fluid has been in there for a good while and your car has a god amount of miles, its better to not change it. Which to me is also BS.
When was the last time you serviced your transmission? What type of fluid did you use?
Instead of flushing do a few drain and refills with 1k miles in between each to get a higher concentration of the new fluid in the transmission. This will save you some money and will eliminate any problems you may or may not experience from a flush.
If you want a high quality fluid, look into the Amsoil ATF. it's a full synthetic and helps the transmission shift buttery smooth.
Instead of flushing do a few drain and refills with 1k miles in between each to get a higher concentration of the new fluid in the transmission. This will save you some money and will eliminate any problems you may or may not experience from a flush.
If you want a high quality fluid, look into the Amsoil ATF. it's a full synthetic and helps the transmission shift buttery smooth.
If you are a manual, you have no excuse to change your gear oil at the proper intervals, even if it has been well over the recommended time period. However usually once an auto reaches 100K without a flush, it is recommended not to flush it because it could end up doing more damage to it.
Thread Starter
Senior Member
Joined: Feb 2007
Posts: 214
From: Louisville, KY
i dont really think it has ever been flushed, and it's AT! but i dont understand how can the tranny becomes dependent on the particles in the fulid?! it doesnt click for me can you explain some more?
I was a bit unsure of my service history before I bought my car so I did 3 drain and fills within the course of a month. Tranny responded nicely and I plan on doing it a 4th time (as well as dropping the pan and cleaning the magnets & screen) to give me roughly 90% fresh fluid. IMO it's better to be safe and add the fluid in stages (drain & fills) than to fire all new fluid in there all at once if you don't know the history of the car.
agreed, i flushed mine at 142,000 and she made it to 175,000 before i put a new one in. do it at the dealer, they use conditioners and safely flush with a speed regaulated machine that will not damage internal parts in tranny.
Thread Starter
Senior Member
Joined: Feb 2007
Posts: 214
From: Louisville, KY
well, i dont know if its a problem but, sometimes it shifts really hard. it kinda kicks.. do i make sence?!
well i got one 150 and i hope that it'll make it fo r4 more years, but if i do it i'll do it in the shop that o work at and use conditioner and stuff that we have!
well i got one 150 and i hope that it'll make it fo r4 more years, but if i do it i'll do it in the shop that o work at and use conditioner and stuff that we have!
The theory behind all of this is that high mileage fluid is full of the worn off particles from the clutches which aid in the friction required to engage said worn clutches. In many cases when the fluid is flushed all the friction aiding particles are flushed as well making a transmission that did not previously slip...slip. Many "honest" shops recommend that if the fluid has never been changed that it should be left alone. I know of 2 shops nearby that make customers sign a waiver before they will do a flush and their explanation is that they have seen too many cars come in for a flush and leave on a towtruck.
^^ok, dumbest comment yet. you flush your fluid to help the tranny, does'nt hurt it to do unless your tranny is on its way out. check fluid level and color, should be a darkish red color, and smell it. if it looks dark brown or black, or smells burnt or both than as long as its not slipping or leaking i would change it.
^^ok, dumbest comment yet. you flush your fluid to help the tranny, does'nt hurt it to do unless your tranny is on its way out. check fluid level and color, should be a darkish red color, and smell it. if it looks dark brown or black, or smells burnt or both than as long as its not slipping or leaking i would change it.
I'm not slipping (at least I don't think I am) but I want to change my fluid as preventative maintenance. I am at 60,xxx on my 99...I should be fine going to AMSOIL Synthetic ATF right?
I have new bolts, gasket, filter ready to be put on/in.
I have new bolts, gasket, filter ready to be put on/in.
Can someone explain "slipping" to me? (Sorry to hijack thread OP)...when I stop at a light...it takes a little while for the car to kick down to first. Sometimes I start driving again in 2nd (when the light turns green as soon as I get almost stopped.
Privet Ilya,
What type of maintenance have you followed in regards to your transmission thus far?...What fluid was used, what were the flush or drain and refill intervals?
I would Auto-RX your transmission and than do a complete flush with Amsoil ATF. If that doesn't help, you have an electrical/sensor issue, perhaps a VB problem?
What type of maintenance have you followed in regards to your transmission thus far?...What fluid was used, what were the flush or drain and refill intervals?
I would Auto-RX your transmission and than do a complete flush with Amsoil ATF. If that doesn't help, you have an electrical/sensor issue, perhaps a VB problem?
Privet Ilya,
What type of maintenance have you followed in regards to your transmission thus far?...What fluid was used, what were the flush or drain and refill intervals?
I would Auto-RX your transmission and than do a complete flush with Amsoil ATF. If that doesn't help, you have an electrical/sensor issue, perhaps a VB problem?
What type of maintenance have you followed in regards to your transmission thus far?...What fluid was used, what were the flush or drain and refill intervals?
I would Auto-RX your transmission and than do a complete flush with Amsoil ATF. If that doesn't help, you have an electrical/sensor issue, perhaps a VB problem?
And the only reason why I mentioned the kick down was because I wanted to make sure it wasn't a sign but I read a long time ago and got the impression that it was normal for a 4th gen Max because my first Max (97) did it too, but it wasn't as noticeable.
This was actually a classic nissan characteristic that I remember coming up alot before I quit at a nissan dealership in 96. It was often complained about but there was nothing wrong (according to nissan). I dont remember a tsb for it but then again there wouldnt have been with nissan claiming it was normal.
I drained the tranny, dropped the pan, cleaned the magnets, changed the screen, and replaced the gasket, and then refilled with just over 4qts of AMSOIL ATF and I can already tell a difference. I'm going to drain and fill once more in two weeks and I should be close to 100% new fluid.
AMSOIL ATF FTW!
My car's throttle response is a little smoother and the general 1-2 shift (which is hard by design) is a bit smoother.
I am VERY pleased.
AMSOIL ATF FTW!
My car's throttle response is a little smoother and the general 1-2 shift (which is hard by design) is a bit smoother.
I am VERY pleased.
Senior Member
Joined: Nov 2005
Posts: 585
From: London, ON, CANADA
so what do you do when u have 236,000km, and the tranny cooler return line slips off the nipple and all your fluid comes out? This happened to me last summer, I had no choice but put new fluid in, I havent had problems since. Anyway im also thinking about switching to Amsoil ATF.
^^ok, dumbest comment yet. you flush your fluid to help the tranny, does'nt hurt it to do unless your tranny is on its way out. check fluid level and color, should be a darkish red color, and smell it. if it looks dark brown or black, or smells burnt or both than as long as its not slipping or leaking i would change it.
please dont share ur opinion when u dont know what ur talking about...
Member
Joined: Jul 2005
Posts: 113
As the original owner of a 96 max , I've only ever done a handful of drain and
fills on the tranny . I usually get out about 5 quarts and replace it with the same amount of the cheapest dexron 3 tranny fluid I can find . This has worked well -- as of tonight 295,301 miles on ORIGINAL TRANNY ! I've
never needed any tranny repairs and I've never even dropped the pan to
clean the magnets.
I wouldn't risk a flush on a high mileage car .When many of the shops who
sell the service -don't want to do it on high mileage cars ,I think that speaks
for itself.
fills on the tranny . I usually get out about 5 quarts and replace it with the same amount of the cheapest dexron 3 tranny fluid I can find . This has worked well -- as of tonight 295,301 miles on ORIGINAL TRANNY ! I've
never needed any tranny repairs and I've never even dropped the pan to
clean the magnets.
I wouldn't risk a flush on a high mileage car .When many of the shops who
sell the service -don't want to do it on high mileage cars ,I think that speaks
for itself.
Senior Member
Joined: Oct 2003
Posts: 1,136
From: Pleasanton,CA
Anyway, flushing is a good PM and should be done regularly to extend the life of the transmission.
Thread Starter
Senior Member
Joined: Feb 2007
Posts: 214
From: Louisville, KY
i talked to some real technicians and they said it' all about luck and how you drive the car. since my tranny is making noises and shifts hard some times, i'm going to take it to a shop sometime tomorrow. they said that it might be the oil pump that is making noises and only real expert people on transmition can judge the situation because tranny is like a who engine itself! thats exactly what they said!
You never have to flush (not sure how you even would) a manual transmission. It will need refilled as you will lose fluid when the axles are removed. (assuming you dont drain it first which I would)
You check the fluid while the transmission is hot (after you just drove the car for a bit). If it's to the "HOT" mark then you're good. If it's over then you should correct it. It can be just under and you should be okay...if it's too low it's not good.
As the original owner of a 96 max , I've only ever done a handful of drain and
fills on the tranny . I usually get out about 5 quarts and replace it with the same amount of the cheapest dexron 3 tranny fluid I can find . This has worked well -- as of tonight 295,301 miles on ORIGINAL TRANNY ! I've
never needed any tranny repairs and I've never even dropped the pan to
clean the magnets.
I wouldn't risk a flush on a high mileage car .When many of the shops who
sell the service -don't want to do it on high mileage cars ,I think that speaks
for itself.
fills on the tranny . I usually get out about 5 quarts and replace it with the same amount of the cheapest dexron 3 tranny fluid I can find . This has worked well -- as of tonight 295,301 miles on ORIGINAL TRANNY ! I've
never needed any tranny repairs and I've never even dropped the pan to
clean the magnets.
I wouldn't risk a flush on a high mileage car .When many of the shops who
sell the service -don't want to do it on high mileage cars ,I think that speaks
for itself.
Junior Member
Joined: Jun 2008
Posts: 25
if yes.......what about the gasket ?