yesterday i was gettin on the highway and rite before i hit 60 it felt like i had no power and i gave it so gas and my RPMs went up but i didnt go anywhere untill i let it go and it and it switched gears. it seems like it only happens at 60-80 mph but after that the car is fine?
(the car is Auto)

do u think its the tranny ?? and if so should i get a new one or have this one rebuilt ??
also wat are some good prices ?

 

I'd look at the shift solenoids and the TCM before you swap out transmissions.

 

TCM is close, shift solenoids are a couple hundred if I remember right. Labor is definitely less than swapping transmissions.

 

Max_Man, what is the mileage on the tranny? Has this happened before or since?

 

where are these shift solenoids located ?

 

ive got 130,000 it just started happening

 

better check your tranny...

 

Im currently having the same exact issue with my 01 A/T (145,000) and I believe its the Revolution Speed Sensor that needs to be replaced.

Start by reading this thread...

http://forums.maxima.org/5th-generat...ed-sensor.html

And this thread...(particularly posts #1 and #20-24)

http://forums.maxima.org/5th-generat...n-help.html#20

Hope this helps!

 

I have the same issue... it's been going on for a while now... it is the TCM $500 using DaveB... good luck

 

thanks im goin to check this out

 

Have you thought about the weight of the rims and tires. I got dubs on mine and having the same issue. I was told by the shop that the mass of the wheels is torture on the tranny. Good thing i got an aftermarket warranty that only cost me 50 bucks to repair.

 

i dont have the rims on rite now

 

Hey Max_Man,

Just wanted to inform you (and others) that I pulled out the Revolution Sensor and unplugged all other sensors/connectors going to the transmission this morning, and proceeded to clean them all with CRC Electric parts cleaner.

Let them all dry out, plugged everything back in, and WOW , what a difference!

The tranny shifts so smooth now and is much much more responsive, and seems to be struggling a lot less without having to do nearly as much work. I honestly couldnt believe the difference it made, just cleaning all the sensors going to the tranny.

Even after filling up my tank after cleaning the sensors, I put on 190+ miles over the course of the day and noticed a 25+ mile increase over what I normally average after just a half a tank of gas. All just due to not having to be on the gas as much and the A/T not working nearly as hard, especially when traveling up hills.

(usually get 160-170 after a half tank, but currently sitting at 198 after a half tank, with the needle right at the halfway point)

Now im not sure if you had thrown a code for the Rev Sensor (P0720), because I hadnt, but after spraying all the sensors going to the A/T, I was absolutely amazed by the difference it made. When going WOT, my max finally has that 'floating feeling' back when going a lil too fast , something I hadnt felt in probably over a year.


Now this is just a thought, but perhaps most of the 'transmission slips' and other problems people are having really are just do to corrosion (salt, dust, dirt, ect) and/or worn sensors/connections that just arent working like they used to (ie - not getting proper voltage), causing the tranny to heat up from working too hard? (B&M tranny cooler is on the way next)

Anyways, before spending $100+ on a new Rev sensor, try cleaning it and the other sensors connected to the tranny with some electric parts cleaner (brake cleaner works to I guess) and see if it makes as much of a difference as it did for my A/T. For $4 a can, its certainly worth a shot imo.

Here are some pics of the sensor location.

http://picasaweb.google.com/cefiro.calsonic/P0720VSS#

Just pull off driver side wheel and the 4 screws holding the plastic panel on, unplug the sensors (Rev sensor held on by 10mm), and sprayem down and let'em dry. Plug back in, and wala.

It was very easy to do too; took me about 30 minutes from start to finish.

 

similar question on my car when i floor it off the line when it shifts from first to second the rpm drops before increasing again. For instance when it is shifting to second it'll go to 4500 rpm then drop to 4200 rpm then starting going up to 6500k like normal. any clue?

 

Thinks that i might try this myself.

 

try to rebuilt first...

 

SmokinMax01, did any fluid come out when you pulled the revolution sensor? I think I'll give this a try on friday.

 

No, not at all...good luck!

 

never thought of cleaning the revolution sensor. definitely a must do before dropping $120 for a new one.

 

Quite honestly, I am starting to believe the 'slipping' the majority people are having with there A/T's is due to oxidation/dirt/salt/corrosion/sand/ect (over time) getting into the sensors/connectors leading to and from the tranny, causing the voltage needed to run the transmission at optimum performance to not allow it to get where it needs to go.

Over the past week or so, I have learned that Transmission solenoid connectors, the Revolution sensor connector, and the A/T inhibitor (gear selector) absolutley HAVE to be cleaned to ensure they really get the voltage they need for proper function.

Afterall, the one major cause for slipping is the oxidized connections that starve the actuating hydraulic solenoids inside the tranny. After cleaning all the connections leading to the transmission, the slipping has completely been eliminated from my A/T transmission.

If the sensors are not getting the proper voltage though, then it initially causes the transmission to work a lot harder than it should, which then eventually leads to overheating.

Overheating is the cause of about 90-95% of all transmission failures.

If this problem (overheating) can be proven as a result of not getting proper voltage to all the transmission sensors (i.e. solenoid connectors, Revolution speed sensor, A/T inhibitor) and therefor causing the transmission to overheat & 'slip' over time, then it might just save a lot of people a lot of money, with a very simple solution.

Now im no trans expert, but for $4 for a can of CRC electric parts cleaner to clean all the sensors going to the tranny, its definitely worth a shot to see how it responds imo.

(tranny coolers for modded A/T's are a must too, it seems, to prolong the life of the tranny; something of which I will be putting on today)

This weekend im also going to remove the TCM (already bought a backup TCM just in case for $60 here on the org) and clean the connector plugs where the TCM hooks up (along w/the ECU plugs) with the electric parts cleaner and di-electric grease, to see if the tranny improves even more than it already has.

I'll let you all know if it makes anymore of a difference or not.

Btw, thanks for the link to the tranny cooler install, 808MAX-SPEC, very helpful and nice work!


Note: Also, to the people trying to clean the Revolution speed sensor and ALL other sensors/connectors leading to the transmission, please let us all know if made a difference or not, in your particular case. Thank you and good luck.

 

Glad you found my write-up useful. Gonna pickup some cleaner on the way home from work and clean some sensors while I do an oil change this weekend.

 

Just cleaned mine. Drove around the block to do a sanity check on the car (this is to check to make sure I didn't break anything). Will need to drive more miles to determine if this helped my car. The sensor didn't look that dirty to begin with. Car has 119k on the odo.

I've attached the service manual diagram of the revolution sensor. SmokinMax01, I couldn't find any other sensors in that area. I'm assuming you just cleaned all the connectors in the diagram posted below:

 

Yes, those are all of the sensors/connectors that I cleaned.

Did all of them at the same time though, and not just the Revolution sensor, so this might be why I noticed more a difference than you did.

Anways, you probably wouldnt notice much of a difference by just cleaning the Revolution sensor, as cleaning the Revolution sensor is just to help and prevent those who have experienced there transmissions actually going out of gear, as stated by members in these two threads:

http://forums.maxima.org/5th-generation-maxima-2000-2003/554340-transmission-help.html#20 http://forums.maxima.org/5th-generation-maxima-2000-2003/556762-revolution-speed-sensor.html

And as described here:

If cleaning the Revolution sensor doesnt help with the problem(s) described above in those two threads and the quote in orange, then replacing it would be the next step I would take.

However, cleaning all the other sensors/connectors (as shown in the pic) is what seems to have brought my A/T back to life and preventing the 'slippage' (most likely getting proper voltage now, preventing overheating/slipping). Cleaning the revolution sensor is just to try and prevent the tranny from 'falling out of gear', just as descibed in the quote by BRAN808.

Btw, tranny is currently running stronger than I ever remember, with absolutely no slippage to speak.....(knock on wood )

Given a bit of time, we'll see if cleaning the Revolution sensor helps with the 'falling out of gear' on occasion (only happened to me twice over a two month period) (code P0720). If not, then I may have to bite the bullet and pay the $120 for a new Revolution sensor.

Hope this helps!

 

I know this is for the 5th Gen... but I wonder if this may be a potential help to the 6th Genners that are having tranny issues? Bueller?

This is a good thread for sure... definitely worth a shot cleaning out the sensors before forking over a few grand.

 

Not just for 5th and 6th gen Max's, but possibly all generations as well.

I couldnt agree more.

 

Nice... good to know!

 

i've been having a problem like this.

after driving for 30 minutes my car will not go into gear and the rpm's just rev up and the car eventually dies.

this is going anywhere from 10-35 mph.

 

Don't waste your money on a rebuild its proven they don't last too long you're better off finding a low milage tranny at a junk yard OEM is allways better than rebuilt and it will probably cost the same if not less.

 

i concur

 

yes def agree on this, happened to my boy he thought it was the tranny too but that was the issue not the tranny, and i dont think it was too expensive either....

 

i'm from Canada, where do i get CRC electric parts cleaner? is that the actual name for the cleaner?

 

is this the one?

 

bad maf sensor maybe.....

 

That will work too, however, this is what I used...

http://ecx.images-amazon.com/images/...500_AA280_.jpg

It may be labeled differently for you though, depending on your location.

 

link dead

 

http://images.google.com/imgres?imgu...en-US%26um%3D1

 

had the exact same problem but mine was due to the transmission overheating

 

***UPDATE***


Coming home from work today, the transmission 'slipped out of gear' again (A/T), as described in the quote above (bolded in orange).

However, this time, she finally threw a code.

Went to local auto parts store and had the code scanned, and sure enough the 'Revolution Speed Sensor' code popped up. (P0720)

(Took 2 months to finally throw the code, but I figured it was the culprit all along after reading the descriptions in the links and post above.)


Ordered the Revolution speed sensor as soon as I got home from Dave Burnette (1-888-254-6060) for $121.00, and he's going to have it shipped to me in 2 days.

Anyways, I've been waiting 2 months for it to finally throw that code (it did it to me 3 times in 2 months before finally throwing the code), which I assumed was the problem all along, and not the transmission itself.


So to those having these problems as described in the quote(s) from BRAN and as described in the links above (ie - slipping out of gear), im 99% sure it's due to a faulty Revolution speed sensor that needs replacing (starting to be a common problem for these transmission, according to Dave Burnette).

So before you go replacing your transmission (if your car is having the same problems as descibed by BRAN, pinakbet, and myself), I would recommend replacing the Revolution speed sensor first.

$121 compared to replacing the transmission itself is definitely a better deal all around.

Hope this helps guys!

-SmokinMax01




Also, a big thanks goes out to pinakbet for pinpointing the problem from the start...as described here...

http://forums.maxima.org/5th-generation-maxima-2000-2003/554340-transmission-help.html#20

 

what a mess, I just had that issue. One morning going to work my car barely would drive, after couple of minutes when oil pressure would build up everything ok, so
rebuilding - was told about 1200-1300
buying used one (?!) who knows what you getting

Add on top of that I had new?! transsmision, changed a year ago since previous had some shifting problems, did only 15k miles

I traded my lovely 02max for 09 jetta se BUT this time is a stick shift

 

my tranny did the same in 2nd gear over a year ago ended up being the shifting bands inside cost me a lil over 2k for a rebuild