Strange oil pressure
#1
Junior Member
Thread Starter
Join Date: Jan 2011
Posts: 44
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Strange oil pressure
Hi all,
Have noticed that my oil pressure is low, not recently, it's just concerning. I used 10w20 and have a new sending unit. Cruising highway is at 25-35 psi and it idles at 6 psi fully warmed. Any ideas on what this may could be? Worn oil pump?
Have noticed that my oil pressure is low, not recently, it's just concerning. I used 10w20 and have a new sending unit. Cruising highway is at 25-35 psi and it idles at 6 psi fully warmed. Any ideas on what this may could be? Worn oil pump?
#4
Senior Member
Join Date: Dec 2009
Location: Elk River, Minnesota
Posts: 682
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
Cluster gauges are almost never completely accurate. Doubtful its your oil pump. It is more than likely worn main, rod and cam bearings causing low pressure.
#5
CF Veteran
Join Date: Feb 2010
Location: Soddy Daisy TN
Posts: 5,420
Likes: 0
Received 0 Likes
on
0 Posts
Year: 97
Model: Cherokee
Engine: 4.0L
Exactly what I was going to say. Mine has been that way for a few years. I just keep good oil in it and only really worry when it drops to around 2 at real low RPMs.
#6
Junior Member
Thread Starter
Join Date: Jan 2011
Posts: 44
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Oil levels are still fine and I constantly check fluids but I'll keep that in mind. I just
Put a new head on it less than 3k miles ago and it seemed normal before I replaced the head
Put a new head on it less than 3k miles ago and it seemed normal before I replaced the head
Last edited by slownlow; 04-26-2011 at 07:47 PM.
Trending Topics
#8
CF Veteran
Join Date: Mar 2010
Location: Georgia
Posts: 1,438
Likes: 0
Received 7 Likes
on
7 Posts
Year: 99 94
Model: Cherokee (XJ)
Engine: I6
Originally Posted by slownlow
Would a thicker weight oil help out a little?
Factory oil pressure guage reading from dash^^^^^
Thread
Thread Starter
Forum
Replies
Last Post
tristanp
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
09-15-2015 04:06 PM
Blackxj51
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
22
09-13-2015 06:06 PM
15XJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
09-10-2015 11:17 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)