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.

Engine Problems!! Need Help

Thread Tools
 
Search this Thread
 
Old 08-14-2009, 04:26 PM
  #1  
Member
Thread Starter
 
mudbogginjeep's Avatar
 
Join Date: Jul 2009
Location: Tipp City, Ohio
Posts: 138
Likes: 0
Received 0 Likes on 0 Posts
Year: 1987
Model: Cherokee
Engine: 6 Cylindar 4.0L
Default Engine Problems!! Need Help

While im driving I noticed today that while driving when I started it up it feels like my engine is running on a 5cyl. or something because its running very rough. When I hit the gas it rumbles very loud. yes i know I ripped out all the carpet but it never made that same rumbling sound before though, while im ideling at the red light my RPM's are running on 200 or 300 RPM's... my oil is low but my odomener is like 2000 miles.... my gas is alittle under a half tank. Some one help please.
Old 08-16-2009, 11:11 AM
  #2  
CF Veteran
 
Abovetimberline's Avatar
 
Join Date: Jul 2009
Location: Chico,ca
Posts: 2,158
Likes: 0
Received 10 Likes on 9 Posts
Year: 89
Model: Cherokee
Engine: 4.0
Default

The first thing I would do is a compression check,make sure it is not mechanical. if you are sure it is a miss then pull injector connections until you find the cylinder it is,and chec k the plug and wire
Old 08-16-2009, 02:10 PM
  #3  
Member
Thread Starter
 
mudbogginjeep's Avatar
 
Join Date: Jul 2009
Location: Tipp City, Ohio
Posts: 138
Likes: 0
Received 0 Likes on 0 Posts
Year: 1987
Model: Cherokee
Engine: 6 Cylindar 4.0L
Default

i checked those and they were fine...
Old 08-16-2009, 02:26 PM
  #4  
CF Veteran
 
Abovetimberline's Avatar
 
Join Date: Jul 2009
Location: Chico,ca
Posts: 2,158
Likes: 0
Received 10 Likes on 9 Posts
Year: 89
Model: Cherokee
Engine: 4.0
Default

Then check fuel pressure,plugs,wires,injectors,dist cap and rotor,I have found as long as it is good mechanicaly,it is easy to fix. Do you recall what the pressures were on compression?
Old 08-16-2009, 04:36 PM
  #5  
Senior Member
 
jd4x426's Avatar
 
Join Date: Jan 2009
Posts: 920
Likes: 0
Received 1 Like on 1 Post
Year: 1996
Model: Cherokee
Engine: 4.0
Default

you may also want to clean the iac that might be you rlow idle problem and when was the last tim you replaced your fuel filter may be partially clogged
Old 08-17-2009, 01:18 PM
  #6  
Member
Thread Starter
 
mudbogginjeep's Avatar
 
Join Date: Jul 2009
Location: Tipp City, Ohio
Posts: 138
Likes: 0
Received 0 Likes on 0 Posts
Year: 1987
Model: Cherokee
Engine: 6 Cylindar 4.0L
Default

i replaced it about a month ago and im still around 2000 miles. im gonna be replacing it soon. whats the iac? but also my dad also said my o-rings could be going bad
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
David Chauncey Clothier
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
08-29-2015 09:31 PM
clark40
Modified XJ Cherokee Tech
7
08-28-2015 03:08 PM
clark40
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
08-28-2015 07:11 AM
Kevin Icenhour
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
08-21-2015 08:22 PM
CCKen
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
08-20-2015 08:07 PM

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


Quick Reply: Engine Problems!! Need Help



All times are GMT -5. The time now is 11:05 AM.