Dumb Transmission Question - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 05-14-2013, 10:20 AM   #1
Newb
 
Join Date: May 2013
Posts: 7
Dumb Transmission Question

OK so I am confused, not knowing what the previous owner did or did not do I figured I would changed all fluids and know where I am at from this point forward. Not knowing what specific trans I had I called and asked the dealer to look it up using my VIN. They told me I had an AX 5 and to use 75W-90 in it, I bought 4 quarts and drained it and when I went to refill it only took a little over 2, which made me question what was wrong. I did some research and for a 01 4.0 6cyl. which I have, what I am finding is that I actually have the NV3550 which takes 2.1 quarts of Mopar or Syncromesh. I called the dealer back and they insist that my VIN indicates a 4cyl with AX 5 trans, which is not what I have. My VIN starts with (1J4FA59S) which from what I have found is right for what is sitting in my garage. I called two more dealerships and they all say that VIN is the 4cyl.?????? I know dealerships are dealerships but all three saying the same thing has me thoroughly confused, the chart I am using to decode my VIN is below. I am going to drain the 75W-90 and refill with Pennzoil Syncromesh, but I am still confused on this mix up on the dealers and the VIN. is this a common mistake for them or am I as crazy as this is all making me??

Also with having the wrong fluid in it should I run the syncromesh for a while and then drain it again and replace with syncromesh again in a week or so or just refill with the right stuff and forget it?

Thanks inadvance for any help.

2001 TJ Chart

PositionInterpretationCode=Description
1Country of Origin 1 = United States
2Make J = Jeep
3Vehicle Type 4 = MPV
4Gross Vehicle Weight Rating E = 3001-4000 lbs.
F = 4001-5000 lbs.
5Vehicle Line A = Wrangler 4×4 (LHD)
6Series 2 = SE
4 = Sport
5 = Sahara
7Body Style 9 = Open body
8Engine P = 2.5L Unleaded Gasoline
S = 4.0L Unleaded Gasoline

MTNative is offline   Quote Quick Reply
Old 05-14-2013, 12:22 PM   #2
Jeeper
 
vertical horizons's Avatar
 
Join Date: Apr 2012
Location: Houston, Tx
Posts: 1,510
Even though the VIN is stating that you have an AX 5, the PO may have swapped with another tranny, therefore causing your confusion.

vertical horizons is offline   Quote Quick Reply
Old 05-14-2013, 01:30 PM   #3
Newb
 
Join Date: May 2013
Posts: 7
Quote:
Originally Posted by vertical horizons View Post
Even though the VIN is stating that you have an AX 5, the PO may have swapped with another tranny, therefore causing your confusion.
I thought of that, but from what I have been able to find on the VIN the dealerships are wrong, I have the 4.0 6 cyl for sure and from what I have been able to find the transmission that came from the factory in it was the 3550 not the 2.5 4 cyl and AX-5 the dealerships are quoting? Also from the amount of oil that will go in my tranny it also stands to reason I have the 3550 not the AX-5.

Thanks for the feedback.
MTNative is offline   Quote Quick Reply
Old 05-14-2013, 02:17 PM   #4
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,517
Images: 2
If your 2001 TJ's engine is the 4.0L six cylinder engine, your transmission is the NV3550. If you have the 2.5L engine, it has the AX-5 transmission.

Since I am assuming it is the 4.0L from what you say, it will have the NV3550 which does not use 75W-90. I would fill it with Redline MTL, Royal Purple Synchromax, or Amsoil Synchromesh. All of those are synthetic gear lubes and all have very good reputations in the NV3550 and NSG370 transmissions.

I personally would not use GM Synchromesh or Pennzoil Synchromesh, which are the same product with different brand names, not many like how their transmissions shift after filling them with that product. Synchromesh from GM or Pennzoil isn't a synthetic ether, which can also make shifting harder in very cold weather.
__________________
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 05-14-2013, 02:53 PM   #5
Jeeper
 
flflash's Avatar
 
Join Date: Mar 2013
Posts: 519
Jerry's right on the money, you can use the GM or Penzoil Synchromesh fluid but the transmission will not shift smoothly at all, the Royal Purple works great. Never used the Amsoil or Redline but I've heard they perform well in the NV3550.
flflash is offline   Quote Quick Reply
Old 05-15-2013, 07:20 AM   #6
Newb
 
Join Date: May 2013
Posts: 7
Thanks A Bunch Guys

I may be over doing it a bit but I drained the 75W-90 last night and put in the Penzoil Syncromesh which I am just using as a flush for the 75W-90 for a little while then I will fill with the Royal Purple or Redline and leave it alone. Maybe a little bit of overkill but sure don't want the wrong stuff in it. Thanks very much for all the great feedback, definately looks like I picked the right forum to join.
MTNative is offline   Quote Quick Reply
Old 05-15-2013, 09:27 AM   #7
Jeeper
 
Duckmasterlack's Avatar
 
Join Date: Apr 2013
Location: Shelbyville, KY
Posts: 61
This might be a little too late but if you are questioning the dealer on your VIN you can request a build sheet from Jeep. I submitted my information and had my build sheet within 2 hours.

http://www.jeep.com/wccsapp/universal/J/index.jsp
Duckmasterlack is offline   Quote Quick Reply
Old 05-16-2013, 07:20 AM   #8
Newb
 
Join Date: May 2013
Posts: 7
Quote:
Originally Posted by Duckmasterlack View Post
This might be a little too late but if you are questioning the dealer on your VIN you can request a build sheet from Jeep. I submitted my information and had my build sheet within 2 hours.

http://www.jeep.com/wccsapp/universal/J/index.jsp
Thanks Duckmaster great idea, I could not get your link to work but I went to the Chrysler webpage and sent a request for a copy of the build sheet to thier customer service email and within about an hour and a half had the full build sheet emailed to me. Great Idea!
MTNative is offline   Quote Quick Reply
Old 05-16-2013, 08:07 AM   #9
Jeeper
 
Duckmasterlack's Avatar
 
Join Date: Apr 2013
Location: Shelbyville, KY
Posts: 61
Not a problem did the build sheet confirm your setup or was the dealer correct.
Duckmasterlack is offline   Quote Quick Reply
Old 05-16-2013, 11:03 AM   #10
Newb
 
Join Date: May 2013
Posts: 7
Quote:
Originally Posted by Duckmasterlack View Post
Not a problem did the build sheet confirm your setup or was the dealer correct.
It confirmed what I thought I had, the dealerships giving the incorrect information

MTNative is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 03:31 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC