pcv valve
#1
Member
Thread Starter
Join Date: May 2011
Location: alabama
Posts: 139
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
pcv valve
Would an 89 xj have a pcv valve ???? I changed the air filter couple of days ago and there was a little oil on the corner in the air filter were the vacum hoses come into the air cleaner box. Thought it could be the pcv valve if they have one if not any suggestions as 2 why there is oil on the filter? This is strictly a trail rig and I rolled it on the passenger side on the last ride could this be a reason any help would be appreciated
#2
Would an 89 xj have a pcv valve ???? I changed the air filter couple of days ago and there was a little oil on the corner in the air filter were the vacum hoses come into the air cleaner box. Thought it could be the pcv valve if they have one if not any suggestions as 2 why there is oil on the filter? This is strictly a trail rig and I rolled it on the passenger side on the last ride could this be a reason any help would be appreciated
edit: mine was completely clogged, little carb cleaner cleared it out
Last edited by Kuro89; 05-11-2011 at 09:47 PM.
#4
#5
CF Veteran
Join Date: Nov 2010
Location: In the middle of Minnesota!
Posts: 5,805
Received 99 Likes
on
88 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
The CCV system is very suspect for clogging and failure on the 4.0 over time. That can result in some oil in the air filter box.
For the best results, pull the valve cover. Thoroughly clean it. Remove the grommets and replace all of them once the valve cover is cleaned, only around $45 for the CCV parts kit. (Napa/dealer) New valve cover gasket, install those new CCV hoses and your CCV system is now fully refurbished.
Your engine will thank you for it and will breathe as designed......!
If you still get oil in your air filter after performing the above, you most likely have true "blowby", which is worn piston rings. SEARCH for information about that condition.
But a clean CCV system is absolutely job #1.
For the best results, pull the valve cover. Thoroughly clean it. Remove the grommets and replace all of them once the valve cover is cleaned, only around $45 for the CCV parts kit. (Napa/dealer) New valve cover gasket, install those new CCV hoses and your CCV system is now fully refurbished.
Your engine will thank you for it and will breathe as designed......!
If you still get oil in your air filter after performing the above, you most likely have true "blowby", which is worn piston rings. SEARCH for information about that condition.
But a clean CCV system is absolutely job #1.
Last edited by tjwalker; 05-12-2011 at 06:09 AM.
Thread
Thread Starter
Forum
Replies
Last Post
cpnwrench
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
13
02-15-2024 08:09 AM
sluger17
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
07-08-2023 07:08 AM
toasterknight
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
33
05-21-2016 07:03 AM
MightyMouse8
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
10-08-2015 08:57 AM
bradleyheathhays
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
10-03-2015 09:51 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)