Does your automatic lug your motor? - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 42 Old 07-02-2013, 06:30 AM Thread Starter
Butterjeep
Registered User
2015 WK 
 
Join Date: May 2012
Location: Edgewater
Posts: 518
Does your automatic lug your motor?

I wish I had stuck with my gut instinct and bought a manual. I have a fairly stock 2012 JK with 33ís and 3.73ís. Iím running slightly larger tires than stock but 33ís and 3.73ís arenít too bad. However, I always feel like the transmission is in a gear higher than it should be, or doesnít downshift when it should, itíll just hold the taller gear and lug the motor up a hill, and I either have to push the gas nearly to the floor at which point, it downshifts, the vehicle surges forward, and then I have to let up and then itíll just upshift again and lug, or I have to manually downshift. Very annoying. The problem is not unique to my JK. I have a 2014 WK2 now which drives fine, but before that I had a 2010 WK and it would do the same thing, the transmission would just lug the motor.

Other than shifting manually all the time, what is the solution to this? Itís very frustrating. I guess I could regear but I donít think this is an issue with the 33ís since I have experienced it both on my JK and my WK. The power is there, the transmission just always seems to hold at a gear too tall.

Your thoughts are welcome and appreciated.


2014 Mustang GT Track Pack
2015 WK2 Limited 4x4
Butterjeep is offline  
Sponsored Links
Advertisement
 
post #2 of 42 Old 07-02-2013, 06:51 AM
ronjenx
Web Wheeler
 
ronjenx's Avatar
2008 JK Wrangler 
 
Join Date: Jan 2009
Location: Maine
Posts: 4,599
Just tap the stick to the left when you think it should downshift, and to the right when you think it should return to the higher gear.

Even though they call it an automatic, it has a control lever so you can make it do what you want.
ronjenx is offline  
post #3 of 42 Old 07-02-2013, 06:52 AM
montero1
Registered User
2010 JK Wrangler 
 
Join Date: Jul 2010
Location: Near PA
Posts: 327
You'd really be hating a 2011 and earlier. I dealt with mine by getting a tuner, keeping OD off, and manually switching to Drive 2 when going up steep hills.
montero1 is offline  
post #4 of 42 Old 07-02-2013, 06:55 AM
JIMBOX
Registered User
2008 JK Wrangler 
 
Join Date: Oct 2008
Location: NORCAL/NORNV
Posts: 7,173
No problemo-

My auto works great, even when towing

JIMBO

Yellow Jeep No. 683
http://i294.photobucket.com/albums/m...10-snow027.jpg
--YA GOTTA HAVE CLASS--
JIMBOX is offline  
post #5 of 42 Old 07-02-2013, 06:58 AM
MAKDaddy626
Registered User
2012 JK Wrangler 
 
Join Date: Jun 2012
Location: Woodstock
Posts: 24
Shift points?

Did you have the upsized tires programmed in to correct the speedo and shift points? Even the small increase can make a difference in the situation you're describing.
MAKDaddy626 is offline  
post #6 of 42 Old 07-02-2013, 07:30 AM
RogueStatus
Registered User
2013 JK Wrangler 
 
Join Date: Feb 2009
Location: York
Posts: 258
mine holds gears when going up a steep hill, i usually have to let off the gas alittle bit for it to downshift. Other then that I have no other issues with 35s and 3.73 gears (3.6 engine with auto)

Jeep-less again
RogueStatus is offline  
post #7 of 42 Old 07-02-2013, 10:09 AM Thread Starter
Butterjeep
Registered User
2015 WK 
 
Join Date: May 2012
Location: Edgewater
Posts: 518
Quote:
Originally Posted by ronjenx View Post
Just tap the stick to the left when you think it should downshift, and to the right when you think it should return to the higher gear.

Even though they call it an automatic, it has a control lever so you can make it do what you want.
This is what I'm doing, I'm just curious as to why I have to do it, the automatic should be "smarter" than it is. Climbing steep hills in 4th gear and the engine is lugging at 1200 rpm? Come on, shouldn't it know to downshift on its own? I know I can tap the lever, but I feel like I shouldn't have to...

2014 Mustang GT Track Pack
2015 WK2 Limited 4x4
Butterjeep is offline  
post #8 of 42 Old 07-02-2013, 10:11 AM Thread Starter
Butterjeep
Registered User
2015 WK 
 
Join Date: May 2012
Location: Edgewater
Posts: 518
Quote:
Originally Posted by MAKDaddy626 View Post
Did you have the upsized tires programmed in to correct the speedo and shift points? Even the small increase can make a difference in the situation you're describing.
Good point, but I already thought of this. My 2010 WK was bone stock and still suffered from the same thing. When I drove my 2012 JK stock, it did the same thing, putting 33's on has merely amplified the problem, but the problem was always there. I know the power is adequate, the car just tends to hold a taller gear than is practical at any given time.

2014 Mustang GT Track Pack
2015 WK2 Limited 4x4
Butterjeep is offline  
post #9 of 42 Old 07-02-2013, 10:37 AM
bogleparsons
Registered User
2013 JK Wrangler 
 
Join Date: May 2011
Location: fayetteville
Posts: 1,959
I would think that a programmer could change your shift points.

But of course it should come new without this problem.

so glad I chose the 6 speed.

If it's not supposed to move and does use duct tape.
If it's supposed to move and doesn't use WD40
bogleparsons is offline  
post #10 of 42 Old 07-02-2013, 10:59 AM
1222
Make mine a Jeep!
 
1222's Avatar
2012 JK Wrangler 
 
Join Date: Jul 2007
Location: Henderson
Posts: 13,239
If I were you I would get the ProCal from AEV and program for the actual size of your tires measured with the weight of the vehicle on them. I have 35s with 4.10s and donít experience anything that youíre describing.
1222 is offline  
post #11 of 42 Old 07-02-2013, 11:34 AM
Wavedatya
Registered User
2010 JK Wrangler 
 
Join Date: Apr 2012
Location: Clarington county
Posts: 1,369
My jeep is the same way. Brutal shift points. Hold gears for ever I need to let off has for it to switch gears.

2010 with 33's and 3:73 gears. Going uphill I need to floor it. And merging on the highway is brutal. I should regear and do the pro cal but no money

OF4WD member #7523. Durham 4x4 member.
Wavedatya is offline  
post #12 of 42 Old 07-02-2013, 12:27 PM
Godholio
Registered User
2012 JK Wrangler 
 
Join Date: Jan 2007
Location: West Haven
Posts: 2,033
I'm still rolling stock, but I've never had a lugging problem. This auto has actually been the most precise on gear selection I've ever owned.

Utah Jeep Crew #148
No powerball here? How am I supposed to finance the mods?!?
'12 Sport...miss my YJ for all the wrong reasons though
Godholio is offline  
post #13 of 42 Old 07-02-2013, 12:42 PM Thread Starter
Butterjeep
Registered User
2015 WK 
 
Join Date: May 2012
Location: Edgewater
Posts: 518
Thanks everyone for your feedback. The general feeling seems to be that these automatics are all across the board. Some say it's the best shifting transmission ever and some seem to deal with the same issues I'm having. When it's in the proper gear, the Jeep feels great with plenty of power. However, for whatever reason, my transmission seems hell bent on a mission to not let my motor rev above 1500 rpm. I'll have to look into the ProCal, or maybe I'll just regear it in anticipation of 35's anyway. I just hate to do that because it's not a lack of power, it's the stupid transmission always holding a taller gear than it should.

Frustrating, but good to know that I'm not alone in this. Thanks again everyone.

2014 Mustang GT Track Pack
2015 WK2 Limited 4x4
Butterjeep is offline  
post #14 of 42 Old 07-02-2013, 12:43 PM
222Doc
Registered User
2012 JK Wrangler 
 
Join Date: Sep 2011
Location: Lake Havasu City
Posts: 5,853
Quote:
Originally Posted by Wavedatya View Post
My jeep is the same way. Brutal shift points. Hold gears for ever I need to let off has for it to switch gears.

2010 with 33's and 3:73 gears. Going uphill I need to floor it. And merging on the highway is brutal. I should regear and do the pro cal but no money
Not the same.


Mine is 012 jkr auto 4:1 35"s. Even with procal the trans and motor if left in Drive will try to keep the rpms low IF you are not on the right foot. BUT you need recalibrate the tires size.

I can be doing 45-50mph and it will still go to 5th and rpms can be in the 1200rpm range. Its trying to save you on fuel. IF we could reprogram the shift points it would be better to have the trans extend all shift points a bit as the tires get bigger/jeep gets heavier and move that low point up. But no one I have heard of can crack the trans to motor module at least not enough to even be able to program a 4speed atlas wont work in all 012+ W580autos.

with 35"s up steep grades mine shifts early if left in cruise control it shifts much sooner than if I am at the pedal, never an issue with that and 35"s going up hills . But 1-4 if you are light on the gas it will attempt to shift much to soon even with the two step gears that the w580 has.

http://www.parker4wheelers.net
www.bullhead4wheelersinc.com
222Doc is offline  
post #15 of 42 Old 07-02-2013, 12:49 PM
Filthy-Beast
Registered User
2006 LJ Wrangler 
 
Join Date: Aug 2009
Location: Palatine
Posts: 2,332
2013 JKU running 35s with 3.73 and reprogrammed with a Procal, no lugging. ATs holding a gear and having to fluctuate the skinny pedal to control shifting is something I've been used to and doing since my first car, a 442. So I could be doing without conscious thought. older trans were more likely to kick down, new ones seem more likely to hold higher gears.

13 JKUR Build thread

For Sale: 2013 4dr JK Painted black Hard Top JKUR 18/59 springs and shocks

97 TJ: daughter 1 - 2.5L, Auto, 2" BB, 31" GY Duratrac
98 TJ: Daugher 2 - 4.0L, 5spd, D44 rear
06 LJ Rubicon: mine - Rokmen full up-armor, 8 adjustable CAs, front bumper, sliders, corners, Shrockworks rear bumper, 3" AEV/BDS lift, Currie HD stearing and Antirock, MT/r - k 35x12.5, SuperWinch, MC Overlines, York OBA
13 JKU Rubicon: Wife's for now, Ace Rock rails & rear bumper tire carrier, Truck Lites, MC Game changer 3.5 lift, RR skids, PSC Brawler front bumper, Warn 9.5cti-s, 35" GY MTRs
Filthy-Beast is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.



Email Address:
OR

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome