Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

rough idle

Thread Tools
 
Search this Thread
 
Old 03-02-2015, 10:41 PM
  #1  
Junior Member
Thread Starter
 
xj27's Avatar
 
Join Date: Jun 2011
Location: Colorado City
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default rough idle

ok fellas ive got a 96 Cherokee, after doing tome repairs to it I have a hard start and a rough idle, I replaced the crank position sensor and now the throttle position sensor. thought the tps would solve my problem but no. when trying to crank it over I get a weird sound that I cant even begin to explain, when it does start it will run great for a sec then the rpm's fall and it starts to shutter and run like crap with a slight miss. any ideas?
Old 03-02-2015, 10:44 PM
  #2  
CF Veteran
 
JPXJMOAB's Avatar
 
Join Date: Jan 2015
Location: Minnesota
Posts: 2,152
Likes: 0
Received 7 Likes on 7 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by xj27
ok fellas ive got a 96 Cherokee, after doing tome repairs to it I have a hard start and a rough idle, I replaced the crank position sensor and now the throttle position sensor. thought the tps would solve my problem but no. when trying to crank it over I get a weird sound that I cant even begin to explain, when it does start it will run great for a sec then the rpm's fall and it starts to shutter and run like crap with a slight miss. any ideas?
could be as simple as plugs and wires .. When was the last time you gave it a tune up?
Old 03-02-2015, 10:49 PM
  #3  
Junior Member
Thread Starter
 
xj27's Avatar
 
Join Date: Jun 2011
Location: Colorado City
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

ive had it a yr, wheeled it once and the motor mounts bolts sheered off in the block, just got it up and running again, I had to put a new distributor in it after the block fell it broke the distributer shaft. it has msd ignition and wires, but im not sure how old they are. the throttle body has some build up in it as well.
Old 03-02-2015, 10:55 PM
  #4  
CF Veteran
 
JPXJMOAB's Avatar
 
Join Date: Jan 2015
Location: Minnesota
Posts: 2,152
Likes: 0
Received 7 Likes on 7 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by xj27
ive had it a yr, wheeled it once and the motor mounts bolts sheered off in the block, just got it up and running again, I had to put a new distributor in it after the block fell it broke the distributer shaft. it has msd ignition and wires, but im not sure how old they are. the throttle body has some build up in it as well.
definitely clean the TB and IAC before you move forward any.
Old 03-02-2015, 11:04 PM
  #5  
Junior Member
Thread Starter
 
xj27's Avatar
 
Join Date: Jun 2011
Location: Colorado City
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

10-4 ill check into it and update next day or so
Old 03-02-2015, 11:13 PM
  #6  
CF Veteran
 
JPXJMOAB's Avatar
 
Join Date: Jan 2015
Location: Minnesota
Posts: 2,152
Likes: 0
Received 7 Likes on 7 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by xj27
10-4 ill check into it and update next day or so
sounds like a plan!
Old 04-14-2015, 04:53 PM
  #7  
Junior Member
Thread Starter
 
xj27's Avatar
 
Join Date: Jun 2011
Location: Colorado City
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

Ok so my problem ended up being my cps. Had to magnetic pull at all! ( that's what I get for buying a cheap cps) oem and it runs like a champ again!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jamesmon4
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
08-16-2016 09:04 PM
Tcq192
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
10-23-2015 09:25 AM
15XJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
09-10-2015 11:17 PM
Bankerburt
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
09-08-2015 10:29 PM
Ella15
Cherokee Chat
0
09-04-2015 05:18 PM

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


Quick Reply: rough idle



All times are GMT -5. The time now is 06:46 PM.