TJ What would cause idle flare-up between shifts?? - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 05-28-2002, 07:36 AM Thread Starter
 
Join Date: Oct 1999
Posts: 89
Thanks: 0
Thanked 0 Times in 0 Posts
 
TJ What would cause idle flare-up between shifts??

Hi

When cool or cold in the morning my TJ has what is called idle flare-up between shifts.
If I shift at 1500 RPM the engine can accel as high as 2000 RPM and then return to normal idle RPMs.
It does happen in every gear shift. Once the engine is up to normal operation temp it is somewhat more driveable but still DOES NOT return to a proper idle speed as fast as it should.
Ther is no linkage hangup of any kind.
I keep the throttle body very clean.

Puzzled
MudLake is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 05-28-2002, 07:40 AM
Keyboard Implanted
 
mbalbritton's Avatar
 
Join Date: Mar 2002
Location: Winston-Salem, NC
Posts: 3,833
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: TJ What would cause idle flare-up between shifts??

try removing your foot from the gas pedal between shifts [img]images/icons/laugh.gif[/img]

JK, Sorry had too. I got no idea, that's justwhat popped in my head first.

Brent
mbalbritton is offline  
post #3 of (permalink) Old 05-28-2002, 08:54 AM
Addict
 
Join Date: Feb 2000
Location: Hillsdale, MI
Posts: 313
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: TJ What would cause idle flare-up between shifts??

Sounds similar to the problem I just had with my 2.5L. One of the intake/exhaust bolts had fallen out, and the others were loose. This created a vacuum leak. Put the bolts back in and the problem went away. You might want to clean your Idle air control while you're in there also. I also discovered that there is a secondary throttle return spring. This spring was broken and half of it was missing on mine.
jjh40 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups 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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not 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 On
Pingbacks are On
Refbacks are On

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