Autotrans will not shift when floored! help please! - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > TJ Wrangler Technical Forum > Autotrans will not shift when floored! help please!

Savvy Billet LED Tail LightsWant to be able to SEE? DOT Approved Headlights for under We have FLASHLIGHTS! Great for your Emergency bag!

Reply
Unread 09-15-2009, 07:15 AM   #1
jh1328
Registered User
2004 TJ Wrangler 
 
Join Date: Jun 2008
Location: Harrisburg, PA
Posts: 197
Autotrans will not shift when floored! help please!

Recently, I have been experiencing that "rattle" that we all know
happens at idle in a jeep. I started noticing it a little more, and some
wierd sounds in reverse, but no huge deal. Today, I was getting on to
a ramp on my way to work, didnt even floor it completely, and my
tach went pretty high, to about 4 or 5, but would not shift. As I said,
I have the auto trans, which has always been decent for me, but not
today. It kept revving, so I layed off the gas while the check engine light
blinked on and off repeatedly. It eventually went off and the jeep shifted
fine the rest of the way. Anyone else ever have this problem or know what
it could be?

__________________
-Josh
2004 Rubicon
jh1328 is offline   Reply With Quote Quick reply to this message
Unread 09-15-2009, 07:32 AM   #2
tavic
Registered User
2010 JK Wrangler 
 
Join Date: Apr 2009
Location: Oklahoma City, OK
Posts: 1,733
Is your trans fluid full?
tavic is offline   Reply With Quote Quick reply to this message
Unread 09-15-2009, 07:34 AM   #3
Alexia
Registered User
2004 LJ Wrangler 
 
Join Date: Apr 2004
Location: Huntsville, AL
Posts: 1,797
Go out to the Jeep, put the key in and turn the key to ON, then OFF, ON, OFF, and then ON fairly quickly. The odometer will display the error codes which you should write down and bring back to post here if any.

Sounds like the transmission was stuck in second gear which is the default gear when the transmission has an issue.
__________________
2004 Jeep Wrangler Unlimited, Automatic
RC 2.5" Lift - RC 2.5" Rear Track Bar Bracket - JKS 1.25" Body Lift - JKS Front Disconnects - JKS 1" Budget Motor Mount Lift - Spidertrax 1.25" Spacers -
Power Door Locks with Keyless Entry

Build Project Thread
Rocker Guard Comparison Chart - Final Differential Gear Ratios - Oxygen Sensor FAQ
Alexia is offline   Reply With Quote Quick reply to this message
Unread 09-15-2009, 07:56 AM   #4
Unlimited04
This post/info=my opinion
 
Unlimited04's Avatar
2004 LJ Wrangler 
 
Join Date: Dec 2005
Location: Colorado
Posts: 23,491
x2 on read code.

also make sure your fluid is full. the 42RLE auto is picky about getting its filters and fluid changed every 30k.

also you often need to completely let off the gas to get the 42RLE to shift out of 2nd when pulling onto the highway in 4k range, then it will drop right into OD unless you have the OD OFF button engaged.
Unlimited04 is offline   Reply With Quote Quick reply to this message
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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.