Speedometer Calibration - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 24 Old 09-17-2005, 08:32 PM Thread Starter
Linda or Greg
Registered User
 
Linda or Greg's Avatar
 
Join Date: Jul 2005
Location: TEXAS
Posts: 148
Speedometer Calibration

I just compared my speedometer to my GPS. When the speedometer says 60 - the GPS says 65. The work seems simply enough -http://www.4x4xplor.com/speedo.html - but somewhere I think I read that on an '05 TJ the fix is electronic and not mechanical. Anyone know for sure?

I'm driving a 6 speed, 6 cyl, 31s and a 373 rear end.


'05 TJ High Country Daily Driver
Linda or Greg is offline  
Sponsored Links
Advertisement
 
post #2 of 24 Old 09-17-2005, 09:12 PM
Rocky529
Jeep
 
Rocky529's Avatar
2004 TJ Wrangler 
 
Join Date: Jul 2004
Location: Park City
Posts: 13,184
Quote:
Originally Posted by Linda
I just compared my speedometer to my GPS. When the speedometer says 60 - the GPS says 65. The work seems simply enough -http://www.4x4xplor.com/speedo.html - but somewhere I think I read that on an '05 TJ the fix is electronic and not mechanical. Anyone know for sure?

I'm driving a 6 speed, 6 cyl, 31s and a 373 rear end.
Only the Rubicon and Rubicon Unlimited are electronic. Any other TJ has speedo gears just like any other year TJ.

2004 Jeep Wrangler Sport - 5 speed

Silver Metallic finish with black dual tops - Dana 44 Rear
2.25" Suspension Lift with Old Man Emu Shocks
Performance Accessories 1" Body Lift
Daystar 1" Motor Mount Lift
Spidertrax 1.25" Wheel Spacers - 32"x11.5" MT/R Tires
Rocky529 is offline  
post #3 of 24 Old 09-17-2005, 09:32 PM
slopoke101
Registered User
 
Join Date: Sep 2005
Location: Washington State
Posts: 18
the dealer told me my 2005 wrangler x had electronic speedo and they had to reprogram computer when I put bigger tires on it.
slopoke101 is offline  
post #4 of 24 Old 09-17-2005, 09:37 PM
Rocky529
Jeep
 
Rocky529's Avatar
2004 TJ Wrangler 
 
Join Date: Jul 2004
Location: Park City
Posts: 13,184
Quote:
Originally Posted by slopoke101
the dealer told me my 2005 wrangler x had electronic speedo and they had to reprogram computer when I put bigger tires on it.
Interesting. Another user here had a '05 that had to be programmed but I think it is because he said he swapped transfer cases or something. He said that all other '05s are the same as prior TJs.

2004 Jeep Wrangler Sport - 5 speed

Silver Metallic finish with black dual tops - Dana 44 Rear
2.25" Suspension Lift with Old Man Emu Shocks
Performance Accessories 1" Body Lift
Daystar 1" Motor Mount Lift
Spidertrax 1.25" Wheel Spacers - 32"x11.5" MT/R Tires
Rocky529 is offline  
post #5 of 24 Old 09-17-2005, 09:59 PM
slopoke101
Registered User
 
Join Date: Sep 2005
Location: Washington State
Posts: 18
Quote:
Originally Posted by Rocky529
Interesting. Another user here had a '05 that had to be programmed but I think it is because he said he swapped transfer cases or something. He said that all other '05s are the same as prior TJs.
I must investigate this further.
slopoke101 is offline  
post #6 of 24 Old 09-18-2005, 08:25 AM
El Jay
Registered User
 
El Jay's Avatar
1995 XJ Cherokee 
 
Join Date: May 2005
Location: Mountain Home
Posts: 60
Quote:
Originally Posted by slopoke101
the dealer told me my 2005 wrangler x had electronic speedo and they had to reprogram computer when I put bigger tires on it.
The dealer told me the same thing about my 05'. Fast forward a week, when I went to make an appt to get it done they changed their tune to "Oh we can't fix yours through the cpu". After I asked them how do I recal. my speedo they were at a loss, they swore I couldn't swap out the speedo gear. Basically telling me I was SOL.

I got the part number I needed from the speedo chart, when I went back to order it, the effin service guy tried to tell me it wouldn't fit because it was for a cherokee?! I had him order it for me any how ($9).

10 Minutes of work under the jeep and I was good to go. To make a long story short...The Jeep dealer here in Crestview, FL is full of morons, only Rubi's need to get hooked up to the computer, and you can fix your speedo for about 10 dollars and 10 minutes of work

1995 Pearlstone Cherokee, 4.0L Auto
2" BB, BFG/AT 31x10.50
El Jay is offline  
post #7 of 24 Old 09-18-2005, 10:56 AM
slopoke101
Registered User
 
Join Date: Sep 2005
Location: Washington State
Posts: 18
Quote:
Originally Posted by cpash
The dealer told me the same thing about my 05'. Fast forward a week, when I went to make an appt to get it done they changed their tune to "Oh we can't fix yours through the cpu". After I asked them how do I recal. my speedo they were at a loss, they swore I couldn't swap out the speedo gear. Basically telling me I was SOL.

I got the part number I needed from the speedo chart, when I went back to order it, the effin service guy tried to tell me it wouldn't fit because it was for a cherokee?! I had him order it for me any how ($9).

10 Minutes of work under the jeep and I was good to go. To make a long story short...The Jeep dealer here in Crestview, FL is full of morons, only Rubi's need to get hooked up to the computer, and you can fix your speedo for about 10 dollars and 10 minutes of work
thank you, they wanted 101 bucks to reprogram.
slopoke101 is offline  
post #8 of 24 Old 09-18-2005, 03:26 PM Thread Starter
Linda or Greg
Registered User
 
Linda or Greg's Avatar
 
Join Date: Jul 2005
Location: TEXAS
Posts: 148
I crawled under my jeep ('05) and pulled the speedometer gear out of the transfer case. Shoulda done that earlier. It is a mechanical fix. The gear was a 36 and I need a 33. I guess that's the problem. Now I have to go to the dealer - I hate that.

'05 TJ High Country Daily Driver
Linda or Greg is offline  
post #9 of 24 Old 09-18-2005, 06:52 PM
Jeepster Tim
Registered User
1981 CJ7 
 
Join Date: Jun 2005
Posts: 64
I have an 05 Unlimited and I just changed the gear - takes 5 minutes
Jeepster Tim is offline  
post #10 of 24 Old 09-18-2005, 07:03 PM Thread Starter
Linda or Greg
Registered User
 
Linda or Greg's Avatar
 
Join Date: Jul 2005
Location: TEXAS
Posts: 148
My tires are 31s. They physically measure 30" high. I should use the 30" measurement in determining what gear to buy - right?

'05 TJ High Country Daily Driver
Linda or Greg is offline  
post #11 of 24 Old 09-19-2005, 07:09 PM Thread Starter
Linda or Greg
Registered User
 
Linda or Greg's Avatar
 
Join Date: Jul 2005
Location: TEXAS
Posts: 148
I bought the pinion gear based on the measured height of my tire - 30" - even though the tire is sized as a 31. I checked it against the GPS and it was exact. If I had installed the pinion gear for a 31, I would have still been off. It's tricky getting that gear out and not tearing the O ring.

'05 TJ High Country Daily Driver
Linda or Greg is offline  
post #12 of 24 Old 09-19-2005, 07:30 PM
orangetj05
Registered User
 
orangetj05's Avatar
2005 TJ Wrangler 
 
Join Date: Jan 2004
Location: Raleigh, NC
Posts: 534
my 2005 has a speedo gear in it im sure yours does to.

2005 TJ 5.7 HEMI, Caged, Locked, Long armed, Stretched, Air shocked, Cromoed, Running 37 Irocks
orangetj05 is offline  
post #13 of 24 Old 09-19-2005, 07:43 PM
SGT Superman
Registered User
 
SGT Superman's Avatar
2000 WJ 
 
Join Date: Aug 2005
Location: Lacey, WA
Posts: 377
How do I know what R & P I have?

Now you know, and knowing is half the battle. G.I. Joe!
Green Jeep Club Member #174
GO COUGS!
SGT Superman is offline  
post #14 of 24 Old 09-19-2005, 07:48 PM Thread Starter
Linda or Greg
Registered User
 
Linda or Greg's Avatar
 
Join Date: Jul 2005
Location: TEXAS
Posts: 148
On my '05, it's on a metal tag attached to the rear diff. It starts off 3.73 followed by other numbers.

'05 TJ High Country Daily Driver
Linda or Greg is offline  
post #15 of 24 Old 09-22-2005, 03:37 PM
SGT Superman
Registered User
 
SGT Superman's Avatar
2000 WJ 
 
Join Date: Aug 2005
Location: Lacey, WA
Posts: 377
Quote:
Originally Posted by Linda
On my '05, it's on a metal tag attached to the rear diff. It starts off 3.73 followed by other numbers.
Can you post a pic of this? I think I know what you are talking about, but my tag is warn and its hard to know if I'm looking at the right numbers, thanks

Now you know, and knowing is half the battle. G.I. Joe!
Green Jeep Club Member #174
GO COUGS!
SGT Superman 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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Speedometer Calibration scanderw TJ Wrangler Technical Forum 5 09-21-2009 11:44 AM
06 TJ speedometer calibration trav_k1234 TJ Wrangler Technical Forum 7 09-19-2009 02:56 PM
Speedometer Calibration...? drvnwheel JK Wrangler Technical Forum 4 06-03-2009 02:10 PM
Speedometer Calibration Bassbuster TJ Wrangler Technical Forum 5 08-19-2005 07:08 PM
speedometer calibration wrangler45 TJ Wrangler Technical Forum 10 06-23-2003 08:58 PM

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