Rpms at idle - 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 > Rpms at idle

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineSavvy Billet LED Tail LightsWant to be able to SEE? DOT Approved Headlights for under

Reply
Unread 09-12-2011, 10:50 AM   #1
Tikiman357
Registered User
1991 YJ Wrangler 
 
Join Date: May 2011
Location: Perris, Ca
Posts: 212
Rpms at idle

Have a 91 2.5 manual. And I am curious to see what everyone's 2.5 is idling at, mine when warm idles about 750 and is a little rough. But runs great at 1000 rpm, just wanting to see if 750 is the norm or should I turn the idle up a bit?

Tikiman357 is offline   Reply With Quote Quick reply to this message
Unread 09-12-2011, 10:51 AM   #2
Spuznick242
Registered User
1995 YJ Wrangler 
 
Join Date: Jun 2011
Location: , PA
Posts: 805
I would turn it up just a touch. Mine's at 800 and it's pretty smooth. If you have a rough idle though, like a loping idle it could be a vacume leak. I had it, turned out it was just a lose clamp.
__________________
DD- 1995 YJ 2.5L, Cat delete, 19lb injectors, 30/9.5r15
Trail Rig- 1994 YJ 4.0L, Rubicon Express 4.5inch lift, 1inch body, D30 Aussie, 33/12.5/r15 Cooper Mud Terrains, front bumper, rocker guards
Spuznick242 is offline   Reply With Quote Quick reply to this message
Unread 09-12-2011, 11:00 AM   #3
Tikiman357
Registered User
1991 YJ Wrangler 
 
Join Date: May 2011
Location: Perris, Ca
Posts: 212
I will double check my vacuum lines later today!!! Thanks
Tikiman357 is offline   Reply With Quote Quick reply to this message
Unread 09-12-2011, 11:35 AM   #4
oldtime_ironman
Web Wheeler
1991 YJ Wrangler 
 
Join Date: Dec 2010
Location: 14304 Niagara Falls, NY
Posts: 2,540
Mine's at about 750 or 800 regardless of temps. It idles smooth enough, tho I bet it could be smoother with some fresh vac hose.
oldtime_ironman is offline   Reply With Quote Quick reply to this message
Unread 09-12-2011, 11:54 AM   #5
bogleparsons
Registered User
2013 JK Wrangler 
 
Join Date: May 2011
Location: fayetteville, NC
Posts: 1,905
Mine idles at 1100 sounds high compared to you guys.

I have TBI can i adjust it?
bogleparsons is online now   Reply With Quote Quick reply to this message
Unread 09-12-2011, 11:55 AM   #6
bogleparsons
Registered User
2013 JK Wrangler 
 
Join Date: May 2011
Location: fayetteville, NC
Posts: 1,905
Mine idles at 1100 sounds high compared to you guys.

I have TBI can i adjust it?
bogleparsons is online now   Reply With Quote Quick reply to this message
Unread 09-12-2011, 01:19 PM   #7
bigbossd1030
Registered User
1995 YJ Wrangler 
 
Join Date: Feb 2010
Location: Edmonton, AB, Alberta
Posts: 2,515
^^^
Check your vacuum lines such as the one leaving your brake booster etc idle should be between 700-800
__________________
[COLOR="DarkGreen"]/l ,[____],
l----L-[]lllllll[]-
()_)-()_)--o)_)[/COLOR]
[COLOR="Blue"]OFFICIAL JEEPER[/COLOR]
[COLOR="Red"]Any Jeepers in Edmonton, AB
I am on channel 33.[/COLOR]
I live, I ride, I am JEEP.
bigbossd1030 is offline   Reply With Quote Quick reply to this message
Unread 09-12-2011, 02:07 PM   #8
mrdeath2000
Registered User
1993 YJ Wrangler 
 
Join Date: Jun 2011
Location: Surprise,, AZ
Posts: 652
The tach is kind of a PITA to pinpoint your rpms between 500-1000. I assume it goes 0/500/1000 even though that second line isnt linearly spaced.
Mine idles between 700-800 when warm and does idle a little rough. If i bump it up an RCH it's smooth as hell, just havent found the right vacuum leak i guess. Might be the booster itself :/

Try pumping your brakes at idle and see if that smooths out ur idle when you do it.
__________________
93' YJ 2.5L, 4.88's, 8.8, E-Locker & LSD
mrdeath2000 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.