Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

High output intake swap problems

Thread Tools
 
Search this Thread
 
Old Jul 21, 2012 | 11:22 AM
  #1  
Gizmo52's Avatar
Thread Starter
Member
 
Joined: Mar 2011
Posts: 229
Likes: 1
From: Middlesex, New Jersey
Year: 1996
Model: Cherokee
Engine: 1998 4.0L Inline 6
Default High output intake swap problems

i swapped my intake manifold from my 96 to a 99+ intake and not im having a high idol at about 1500 rpm instead of my normal 700. i have no vaccume leaks that i know of. has anyone else had this problem? if so what can i do to fix it???
Reply
Old Jul 21, 2012 | 11:41 AM
  #2  
CheapCherokee's Avatar
CF Veteran
 
Joined: Feb 2010
Posts: 1,152
Likes: 1
From: La Habra, CA
Year: 1988
Engine: 4.0 RENIX
Default

you could very likely have a vacuum leak at the new intake manifold gasket. re-tighten the manifold bolts to be sure its not leaking.
Reply
Old Jul 21, 2012 | 01:30 PM
  #3  
Gizmo52's Avatar
Thread Starter
Member
 
Joined: Mar 2011
Posts: 229
Likes: 1
From: Middlesex, New Jersey
Year: 1996
Model: Cherokee
Engine: 1998 4.0L Inline 6
Default

should i spray carb cleaner on it to see if it is leaking first?
Reply
Old Jul 21, 2012 | 09:27 PM
  #4  
cruiser54's Avatar
::CF Moderator::
 
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Sure. Very common for the intake manifold to be not completely seated and hanging up on a locating dowel.
Reply
Old Jul 22, 2012 | 02:41 AM
  #5  
iyzak the xj's Avatar
Junior Member
 
Joined: Jul 2012
Posts: 87
Likes: 0
From: North Carolina
Year: 1994
Model: Cherokee
Engine: 4.0ho
Default

i played with my little screw on my thorttle body and i hadda change out my thorrtle position sensor but im pretty sure that got messed up when i bored the tb out
Reply
Old Sep 28, 2012 | 09:58 AM
  #6  
Gizmo52's Avatar
Thread Starter
Member
 
Joined: Mar 2011
Posts: 229
Likes: 1
From: Middlesex, New Jersey
Year: 1996
Model: Cherokee
Engine: 1998 4.0L Inline 6
Default

my buddy never tightened any of the botton bolts so i have a massive vaccume leak... and i took my throttle body completely appart to bored it... everythings good now... in the process of finishing my push bar/bruch guatd and making my roof rack
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BayArea93xj
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
Jun 11, 2016 10:43 AM
Doogluus88
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
Sep 1, 2015 06:11 AM
lgrant
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
Aug 27, 2015 05:49 AM
ROCKRIDGE 4WD
Vendor Showcase
0
Aug 20, 2015 02:31 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 10:04 AM.