Tranny slipping... next step??
09-18-2007, 05:12 PM
#1
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Tranny slipping... next step??
Yeah, so my tranny is slipping now at 105,000 miles.. since all the kinks havent been worked out of the site yet, i'll make it easier for everyone and say that i have a 2001 auto max. Let me tell you the history of my transmission. I had brown fluid and experienced hard shifting from 1st to 2nd gear between 4-5k rpms. So I decided to do a drain/fill with mobil 1 synthetic. This did not change anything, so about 2,000 miles later I do a flush through the tranny return line with mobil 1 synthetic using the 2 quarts in, 2 quarts out method. This got my fluid more red, and improved the shifting below 4,000 rpms, but the hard shift at 4-5k rpms was still there.. and now its kind of hesitating when it shifts close to 6,000 rpms, where shifts at that rpm used to be smooth. Could I have made the problem worse by doing the tranny flush? What should I do next? Would getting a tranny cooler remedy the problem or do I need it rebuilt or what? I was thinking about dropping the pan and cleaning the magnets, which would require another drain/fill, but I don't know anymore. Should I still do that? Thanks in advance for any help
Last edited by wyche89; 09-18-2007 at 06:25 PM.
09-18-2007, 11:17 PM
#2
Look around for shops that can rebuild transmissions. Have them do the flush and drop the pan to clean the magnets. I'm not totally sure but maybe they can determine the state of your transmission by the amount of shavings on the magnets. You should also check the radiator and ac condenser fins and make sure that they are both free of debris. This will help to properly cool the fluids esp the trans oil. It's up to you if you want to install a trans cooler.
09-19-2007, 08:57 AM
#4
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so i mean like.. how long do u think i'll be able to go without getting it serviced... will it eventually like crap out on me and leave me stranded or something? like i said, it shifts fine below 4k rpms, so im thinking maybe it's not an urgent problem...??
09-19-2007, 12:23 PM
#5
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Well I have 02 auto and sometimes i go up to 4,000rpm but not all the time. No disrepect but i dont think the auto transmissions where made for that type of abuse all the time, and there is no reason that if your driving your car normal that it would have to shift that high, if any it should shift no higher than 2,700rpms under normal driving. With the miles you have on your car you know you have to drive it a little better unless you have money to waste on a transmission. If you wanted to shift at higher Rpms you should have got a manual.
09-19-2007, 03:17 PM
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09-19-2007, 03:19 PM
#12
09-19-2007, 03:20 PM
#13
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Yeah but if he has a auto why is his shift so high between gears, or did i not read correctly what he said??????????
09-20-2007, 04:14 PM
#17
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i shift so high between gears because i like to go fast and the techs at nissan told me that car could take it.. i asked them if it was dangerous to do that and they said as long as i dont hit redline im good.. but yeah, u read it right.. 6,000 rpms is where is starts to hesitate.. how do you do this seafoam thing in the tranny?
09-20-2007, 04:29 PM
#18
Well I have 02 auto and sometimes i go up to 4,000rpm but not all the time. No disrepect but i dont think the auto transmissions where made for that type of abuse all the time, and there is no reason that if your driving your car normal that it would have to shift that high, if any it should shift no higher than 2,700rpms under normal driving. With the miles you have on your car you know you have to drive it a little better unless you have money to waste on a transmission. If you wanted to shift at higher Rpms you should have got a manual.
09-20-2007, 04:36 PM
#19
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Here's what I found about the Seafoam Trans Tune:
http://www.seafoamsales.com/transTuneTech.htm
Just add 1/2 -1 pint into the tranny dipstick.
Odd thing is that the MSDS's for the tranny foam contain the same chemicals as the Engine Seafoam. Must be a marketing scheme.
http://www.seafoamsales.com/transTuneTech.htm
Just add 1/2 -1 pint into the tranny dipstick.
Odd thing is that the MSDS's for the tranny foam contain the same chemicals as the Engine Seafoam. Must be a marketing scheme.
Last edited by TurtleHead; 09-20-2007 at 04:39 PM.
09-22-2007, 08:40 AM
#21
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alright guys.. after reading that TSB, i'm thinking maybe the solenoids and/or the tcm might be bad.. somebody told me that it's probably an internal problem and i would need a rebuild or a new tranny.. but that route is very expensive.. lol.. would replacing the solenoids and tcm make the problem any better at least? i would install a tranny cooler too
09-22-2007, 02:43 PM
#22
I would attempt to replace the TCM myself but not the solenoid pack. Unless I have detailed instructions and someone to help me, I would not replace the solenoids myself. Like I said earlier, take your car to a shop that specializes in transmissions. You can have them check everything and correctly diagnose your problem.
09-22-2007, 03:13 PM
#23
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yeah, i wasnt gonna attempt it myself, but i dont wanna get f*****d over either.. i've had a bad history with mechanics and have developed a distrust for them.. but if i could find out from somebody on here if the solenoids/tcm might fix the problem, then i would just go to a shop and say "i want these things replaced" instead of "tell me whats wrong with my car" you know? cause that opens the door for 
10-07-2007, 08:15 PM
#27
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10-08-2007, 08:50 AM
#28
ok here is your problem(imo):
your motor mounts are beat to **** because you drive and pretend your car is a race car.
your tranny isn't slipping the hard shifts are your engine and tranny rocking around in your engine bay because your mm are beat to ****.
how you put hard shifting and slipping in the same sentence is beyond me.
do you know how an auto tranny performs before it ****s itself?
do you know know what the difference between a slipping transmission and a tranny that shifts 'hard'?
do you know why your fluid was brown?
your motor mounts are beat to **** because you drive and pretend your car is a race car.
your tranny isn't slipping the hard shifts are your engine and tranny rocking around in your engine bay because your mm are beat to ****.
how you put hard shifting and slipping in the same sentence is beyond me.
do you know how an auto tranny performs before it ****s itself?
do you know know what the difference between a slipping transmission and a tranny that shifts 'hard'?
do you know why your fluid was brown?
10-08-2007, 08:57 AM
#29
i shift so high between gears because i like to go fast and the techs at nissan told me that car could take it.. i asked them if it was dangerous to do that and they said as long as i dont hit redline im good.. but yeah, u read it right.. 6,000 rpms is where is starts to hesitate.. how do you do this seafoam thing in the tranny?
if you don't hit redline your good? do you honestly believe that it's ok to shift at 5.5k but not 6k routinely???
if you beat on a car it adds tons of wear n tear on MANY components, not just the engine and tranny.
now you say the tranny hesitates at 6k?
you are pretending your auto is a 5/6 spd aren't you? manually shifting the gears...incase you didn't know it causes more wear, and you will be slower in the 1/4 mile. it's been proven time and time again. leave it in D or buy a new car.
. . . . . . . . ..
10-08-2007, 09:09 AM
#31
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ok here is your problem(imo):
your motor mounts are beat to **** because you drive and pretend your car is a race car.
your tranny isn't slipping the hard shifts are your engine and tranny rocking around in your engine bay because your mm are beat to ****.
how you put hard shifting and slipping in the same sentence is beyond me.
do you know how an auto tranny performs before it ****s itself?
do you know know what the difference between a slipping transmission and a tranny that shifts 'hard'?
do you know why your fluid was brown?
your motor mounts are beat to **** because you drive and pretend your car is a race car.
your tranny isn't slipping the hard shifts are your engine and tranny rocking around in your engine bay because your mm are beat to ****.
how you put hard shifting and slipping in the same sentence is beyond me.
do you know how an auto tranny performs before it ****s itself?
do you know know what the difference between a slipping transmission and a tranny that shifts 'hard'?
do you know why your fluid was brown?
10-08-2007, 09:15 AM
#32
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cuz the tech's at nissan designed the car. :stfu:
if you don't hit redline your good? do you honestly believe that it's ok to shift at 5.5k but not 6k routinely???
if you beat on a car it adds tons of wear n tear on MANY components, not just the engine and tranny.
now you say the tranny hesitates at 6k?
you are pretending your auto is a 5/6 spd aren't you? manually shifting the gears...incase you didn't know it causes more wear, and you will be slower in the 1/4 mile. it's been proven time and time again. leave it in D or buy a new car.
if you don't hit redline your good? do you honestly believe that it's ok to shift at 5.5k but not 6k routinely???
if you beat on a car it adds tons of wear n tear on MANY components, not just the engine and tranny.
now you say the tranny hesitates at 6k?
you are pretending your auto is a 5/6 spd aren't you? manually shifting the gears...incase you didn't know it causes more wear, and you will be slower in the 1/4 mile. it's been proven time and time again. leave it in D or buy a new car.
B. no.. i don't manually shift the gears... i leave it in drive all the time.. you are obviously being of no help flaming and assuming things that aren't true... since you are obviously of no use, then please remove yourself from this thread and be on somebody elses meat
10-08-2007, 09:41 AM
#34
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10-08-2007, 09:57 AM
#35
it sounds like your tranny is acting normal. it's supposed to shift smoothly. every auto maxima i'v been in shifts just as you described except the 2 that had VBs done in them. if you want it to shift hard put in a VB kit.
also you can change the filter on your VB which you should do when you clean the magnets. and doings a flush without doing mags and the filter doesn't make much sense to me. would you do an oil change and leave on the old filter?
the way you are talking about letting it shift at different rpms makes one assume you're moving the stick yourself. otherwise it's very hard to make the auto tranny shift at the exact point you want it to eg: 5.5k and not 6k.
so your complaint is it's shifting too smoothly right? not hard shifting?
edit: manually shifting the auto trans drastically increases wear and is slower in a straight line. you can always double tap the pedal to force a down shift which is just as fast as moving the stick btw.
also you can change the filter on your VB which you should do when you clean the magnets. and doings a flush without doing mags and the filter doesn't make much sense to me. would you do an oil change and leave on the old filter?
the way you are talking about letting it shift at different rpms makes one assume you're moving the stick yourself. otherwise it's very hard to make the auto tranny shift at the exact point you want it to eg: 5.5k and not 6k.
so your complaint is it's shifting too smoothly right? not hard shifting?
edit: manually shifting the auto trans drastically increases wear and is slower in a straight line. you can always double tap the pedal to force a down shift which is just as fast as moving the stick btw.
Last edited by Torgus; 10-08-2007 at 10:02 AM.
10-08-2007, 10:10 AM
#36
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it sounds like your tranny is acting normal. it's supposed to shift smoothly. every auto maxima i'v been in shifts just as you described except the 2 that had VBs done in them. if you want it to shift hard put in a VB kit.
also you can change the filter on your VB which you should do when you clean the magnets. and doings a flush without doing mags and the filter doesn't make much sense to me. would you do an oil change and leave on the old filter?
the way you are talking about letting it shift at different rpms makes one assume you're moving the stick yourself. otherwise it's very hard to make the auto tranny shift at the exact point you want it to eg: 5.5k and not 6k.
so your complaint is it's shifting too smoothly right? not hard shifting?
edit: manually shifting the auto trans drastically increases wear and is slower in a straight line. you can always double tap the pedal to force a down shift which is just as fast as moving the stick btw.
also you can change the filter on your VB which you should do when you clean the magnets. and doings a flush without doing mags and the filter doesn't make much sense to me. would you do an oil change and leave on the old filter?
the way you are talking about letting it shift at different rpms makes one assume you're moving the stick yourself. otherwise it's very hard to make the auto tranny shift at the exact point you want it to eg: 5.5k and not 6k.
so your complaint is it's shifting too smoothly right? not hard shifting?
edit: manually shifting the auto trans drastically increases wear and is slower in a straight line. you can always double tap the pedal to force a down shift which is just as fast as moving the stick btw.
Last edited by wyche89; 10-08-2007 at 10:15 AM.
10-08-2007, 10:12 AM
#37
. Of course, I suppose that can be a general statement, but it all depends on the powerband of the vehicle. By shifting @ 7k, I am in a much fatter area of the torque curve for the next gear so,
10-08-2007, 03:02 PM
#40
Have you actually taken off the pan and tried changing the screen?