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.

Blow By problems

Thread Tools
 
Search this Thread
 
Old Mar 22, 2011 | 06:51 PM
  #1  
Abram1109's Avatar
Thread Starter
Junior Member
 
Joined: Sep 2009
Posts: 52
Likes: 0
From: Greenville, SC
Year: 1991
Model: Cherokee
Engine: AMC 4.0L I-6 HO
Default Blow By problems

I've cleaned everything and I'm still getting blow by. Any suggestions on what I should try next?

Thanks in advance,
Reply
Old Mar 22, 2011 | 06:55 PM
  #2  
VTJeep's Avatar
CF Veteran
 
Joined: Jul 2010
Posts: 4,930
Likes: 3
From: 802
Year: 99
Model: Cherokee
Engine: 4.0
Default

here's what ya need to do to help it.. Pull the valve cover and clean it thoroughly, clean all the parts udner the cover with some brake cleaner and get some of the gunk out of top area of the head. Then you need to replace you CCV valve elbows and the hoses attached to them. replace valve cover using a good gasket. This will help but won't prevent blow by completely.

this was suggested by "okcjeeper" (a cf admin.) in another post about blow by issues. might help.
Reply
Old Mar 23, 2011 | 09:08 PM
  #3  
Abram1109's Avatar
Thread Starter
Junior Member
 
Joined: Sep 2009
Posts: 52
Likes: 0
From: Greenville, SC
Year: 1991
Model: Cherokee
Engine: AMC 4.0L I-6 HO
Default

Thanks VT. I'll try that. Hopefully that will work. I can't keep replacing my air filter every other week.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Psiegrist1
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
34
Mar 17, 2022 02:15 PM
NM-XJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
Oct 23, 2018 04:21 PM
Jooman07
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
17
Jan 3, 2016 04:15 PM
Gauge
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
15
Sep 5, 2015 11:02 PM
Jeepy11
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
2
Sep 3, 2015 09:32 AM

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



All times are GMT -5. The time now is 01:40 AM.