2.5 to 4.0 throttle body - 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 > YJ Wrangler Technical Forum > 2.5 to 4.0 throttle body

6th Annual, Beat Your Wife to the Credit Card Sale!Flush Mount LED Bumper Lights, CREERuffstuff Axle Simple Swap Kit!

Reply
Unread 02-08-2014, 07:33 PM   #1
mipstien
Registered User
1991 YJ Wrangler 
 
Join Date: Jul 2012
Location: Walland/Knoxville, Tennessee
Posts: 57
2.5 to 4.0 throttle body

I picked up a 4.0 throttle body for my 2.5 jeep today and when compared the 2 the thing i noticed was that the 4.0 had a little tab on it that kept it from bolting right now.

my questions I have are
1. does the idle air valve need to be changed out .
2. if the idle air valve doesn't need to be changed are the idle air base pieces swapable.
3. is the tps the same or does it need to be changed as well.
4. anything else i need to know about them fitting/working

mipstien is offline   Reply With Quote Quick reply to this message
Unread 02-08-2014, 09:45 PM   #2
ddferdt
Registered User
1991 YJ Wrangler 
 
Join Date: May 2013
Posts: 40
Swap the 2.5 sensors to the 4.0 body. And make sure you have a gasket and some rtv silicone on hand, otherwise she'll idle really high. Other than that it's pretty straight forward
ddferdt is offline   Reply With Quote Quick reply to this message
Unread 02-09-2014, 09:27 AM   #3
mipstien
Registered User
1991 YJ Wrangler 
 
Join Date: Jul 2012
Location: Walland/Knoxville, Tennessee
Posts: 57
Sweet thanks!
mipstien 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






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.