auto tranny 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 06-01-2010, 06:01 PM   #1
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
auto tranny question

as i get more and more into wheeling, I am starting to worry about my auto trans. is it ok to go through water (not chadwick deep) and semi deep mud? the last thing i need is for my transmission to die. Thanks.

__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-01-2010, 06:34 PM   #2
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,018
Images: 2
What model and year TJ do you have?

__________________
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 06-01-2010, 06:58 PM   #3
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
its an 01 sport i believe. its a 4 cyl.
__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-01-2010, 07:30 PM   #4
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,018
Images: 2
Ok if it's a 4 cylinder, it is an "SE", not a Sport. The Sport designation indicates the 4.0L six cylinder engine.

So your SE's automatic transmission is a 30RH (a member of the excellent and reliable Torqueflite TF999 family) which has an air vent on its front face where it bolts to the engine which means you can't take it through deep water. The good news is that vent can be moved to the top of the transmission and have a rubber hose attached to it to raise the vent point up to the top of the radiator level. The bad news is you have to pull the transmission to do it.
__________________
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 06-01-2010, 07:33 PM   #5
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
so hypothetically if I did that i could go into water up to the engine. also, is there a write upon how to do the mod?
__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-01-2010, 07:36 PM   #6
Newb
 
Join Date: May 2010
Location: Central Oregon
Posts: 7
Quote:
Originally Posted by Jerry Bransford View Post
Ok if it's a 4 cylinder, it is an "SE", not a Sport. The Sport designation indicates the 4.0L six cylinder engine.

So your SE's automatic transmission is a 30RH (a member of the excellent and reliable Torqueflite TF999 family) which has an air vent on its front face where it bolts to the engine which means you can't take it through deep water. The good news is that vent can be moved to the top of the transmission and have a rubber hose attached to it to raise the vent point up to the top of the radiator level. The bad news is you have to pull the transmission to do it.
Wow, good info... since you are in a giving mood..

What do you know about the auto tranny in a 2005 rocky mountain?

TIA
speed_phreak is offline   Quote Quick Reply
Old 06-01-2010, 07:42 PM   #7
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,018
Images: 2
Here's a very good writeup on how to move the vent on a 32RH transmission which should be identical to what you would do on the more lightly built 30RH. Relocating vent on 32rh 3 speed auto - JeepForum.com

Yes in theory you could into water up to about the bottom of the headlights if you are certain the remote vent tubes for both axles, the transfer case, and the new one going to the transmission are connected properly.
__________________
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 06-01-2010, 07:43 PM   #8
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
thank you very much Jerry. This may turn into a weekend project!
__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-01-2010, 07:43 PM   #9
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,018
Images: 2
Quote:
Originally Posted by speed_phreak View Post
Wow, good info... since you are in a giving mood..

What do you know about the auto tranny in a 2005 rocky mountain?

TIA
Yep, the automatic transmission used behind the 4.0L engine on 2003 and newer TJs is the 42RLE. Its vent is on top of the transmission but even though I just acquired a new TJ with that transmission, I don't know if its top vent has a hose connected to it by the factory or not. I'd be quicker to check that out on my TJ except I wheel in the desert and hardly ever cross any water in it.
__________________
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 06-01-2010, 07:47 PM   #10
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
sorry another quick question...how deep can i go stock?
__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-01-2010, 07:53 PM   #11
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,018
Images: 2
Stock? I"d go no deeper than the bottom of the transmission and I'd be driving real slow. Auto transmissions don't like getting any water inside.
__________________
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 06-01-2010, 07:55 PM   #12
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
Quote:
Originally Posted by Jerry Bransford View Post
Stock? I"d go no deeper than the bottom of the transmission and I'd be driving real slow. Auto transmissions don't like getting any water inside.
yea, thats kinda why i wish she was a stick. thanks again for all your help!
__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-01-2010, 07:59 PM   #13
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,018
Images: 2
Quote:
Originally Posted by pakman55 View Post
yea, thats kinda why i wish she was a stick. thanks again for all your help!
I converted my last TJ FROM a stick to an automatic which is, for offroad, a better transmission. My newer rock crawling TJ has an automatic too, the preferred transmission for 5+ rated rock crawling trails. Besides, water can get into a manual transmission and harm it too.
__________________
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 06-01-2010, 08:25 PM   #14
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
Quote:
Originally Posted by Jerry Bransford View Post
I converted my last TJ FROM a stick to an automatic which is, for offroad, a better transmission. My newer rock crawling TJ has an automatic too, the preferred transmission for 5+ rated rock crawling trails. Besides, water can get into a manual transmission and harm it too.
i guess it is easier to battle with just the trail, not the trail and the transmission. I will just avoid the deep stuff and enjoy what I can get through.
__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-01-2010, 08:28 PM   #15
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,018
Images: 2
It's not so much that the automatic is easier to drive offroad, which of course it is, it is that the automatic's torque converter provides 2-3X more low-end torque (yes, that is true) than you get from a manual transmission. Not to mention an immense amount of added control on extreme level trails with an automatic when compared to a manual. Converting my TJ's factory 5-speed manual tranny to an automatic transformed my otherwise well built rock crawler to a nearly unstoppable but more controlled beast on the rocks. By the way, I have well over 40 years of driving stick shifts so it's not like I have a bias against manual transmissions.

Manual transmissions for sports cars (an automatic in a Porsche or Corvette would be a sin) but offroad vehicles do far better with automatics.
__________________
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 06-01-2010, 08:33 PM   #16
Jeeper
 
pakman55's Avatar
 
Join Date: Nov 2009
Location: The 363
Posts: 4,803
Send a message via Yahoo to pakman55
I have seen some of the trail you ride on via your website. i dont think i will ever be going on those...at least in my jeep

its just up here in MA most of the trails are nice and wet. no fun deserts to play in

i guess there are pros and cons to auto. since i have not had any problems so far, i have no regrets.
__________________
Life, Liberty and the Pursuit of Happiness
pakman55 is offline   Quote Quick Reply
Old 06-02-2010, 11:23 AM   #17
Newb
 
06TJinVA's Avatar
 
Join Date: Apr 2010
Location: South Boston, VA
Posts: 14
Yeah I have an 06 Tj with and auto and o/d. I think in 04 or 03 is when they started offering the O/D option which is awesome. I just flip the switch when I'm on a lot of hills and offroading.

__________________
CONFIDENCE - The feeling you have before you understand the situation.
06TJinVA 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:
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
do auto tranny get a lower ratio frogonwheels JK Tech Forum 10 11-11-2009 11:35 AM
"94 YJ - 2.5L, Auto tranny upgrade xponce YJ General Discussion Forum 1 09-20-2009 06:50 PM
Tranny question diesel9 TJ Tech Forum 3 09-18-2009 01:12 PM
Tranny Skid-Plate question.. George T. General Jeep Discussion 3 08-13-2008 01:49 PM
Tranny question ddavie TJ Tech Forum 2 07-05-2007 01:16 PM



» Featured Product

All times are GMT -5. The time now is 02:51 PM.



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